What is the SI unit o tnyrol- uws+iq4dg)/ d5)so(f momentum?

  When a cannon fires a cannonball,qc0s8nlyn2igo(p x. -ppuj.* the cannon will recoil backward because the

  A freight car moves along a frictionless level railrodrm.8b 6gk rxrx9hr/k vwi4e-7b p87y ad track at constant speed. The car is open on top. A large load of coal is s/k4wv9dp .bx6 ye78rr7r-x 8 r bkgimhuddenly dumped into the car. What happens to the velocity of the car?

  A child falls sideways off a sled while sledding on frictionless ice. What hau8 wpcr6t4ux7 ppens to the velocity of thewux4c7pt6ru 8 sled?

  A rubber ball and a lump of putty have equal mpg. h wdkzzk;-l.8/(lzrat9 a(e)g ,diz:h alass. They are thrown with equal speed against a wall. The ball bounces back with nearly the same speed with which it hit. The putty sticks to the walld/a(d h gt;glzr zwha9), ikaz .(- e8l:.kzpl. Which objects experiences the greater momentum change?

  A sailboat of mass m is moving with a momentum p. How would you represent its k qnf b ws+ :zrma4l3e7xg0 *sj,vti;o3inetic energy in terms of these t:oxs;i, ma3 ne+jvrg zq34t7ws l*bf 0wo quantities?

  If you pitch a baseball with twice the kinetic energy you gave it in the m;bq *ck5 0cngjm.g3 eprevious pitch, the magnitude of its momem *k cqb05g3.g ce;mnjntum is

State Newton's second law in terms of mxz,6 eonyh)k4 hh+ 6lwomentum.

State the law of conservation of m(83vx qeu ia.jomentum.

  The area under the curve on a Fori-i/oyfe/j f,-jz0n rian6i8 go3 l+x ce versus time (F vs. t) graph represents

  Which of the following is an accurate statemee4s9pq.*hrd9 gxnt;e9 r4xs p1/ vciunt?

  A small car meshes with a lvalf-0tm+pdnpx:pwgyg4 klg12 : *.5 lka5miarge truck in a head-on collision. Which of the following statements concerning the magnitude of the averagxp+ ldg millayk05pfkm1:a5g t:.w4v-ng2p* e collision force is correct?

  Two equal mass balls (one 6c0 u5 vlm8e* lnwfik0red and the other blue) are dropped from the same height, and rebound off the floor. The red ball rebounds to a higher position. Which ball is subjected to the greater magnitude of impulse during its collision with lwfcu * n vki800m5l6ethe floor?

  A Ping-Pong ball moving east a0zh/vma qr tos26w 3f vs8nj3b9fxo(0t a speed of 4 m/s, collides with a stationary bowling ball. The Ping-Pong ball bounces back to the west, and tq0mbxrzs /60fvo t (ofa3 s9hwj2n38vhe bowling ball moves very slowly to the east. Which object experiences the greater magnitude impulse during the collision?

  Two objects collide and bounce off each other. Linear m;gfa,n1f 7js3 .0-xn b ooumr-; ggov )b.gzuqomentum

  A 3.0-kg object moves to the right at 4.0 m/s. It epj/nr gtb2(iir8 q31 collides head-on with a 6.0-kg object moving to th1 (tj i g8q/brer3pi2ne left at 2.0 m/s. Which statement is correct?

  A 100-kg football linebacker moving at 2.0 m/s tackles head-on an /uee j79-qw juiyg-t;6 ay3*p zxjm c.80-kg halfback runn7j ;/3j6yyp zuacei m gqewu-9t-*x.j ing
3.1 m/s. Neglecting the effects due to digging in of cleats,

  In an elastic collision, if the momentum iphl;a- sp *fpw* bh,m(s conserved, then which of the following statements is true about bf,; lswp(a hm -h*pp*kinetic energy?

  When is kinetic energy consemz;kg8x0y lkz:+m w a(rved?

  In a game of pool, thebpq *r/*;sj as white cue ball hits the #5 ball and stops, while the #5 ball moves away ;/ ssj*a *bprqwith the same velocity as the cue ball had originally. The type of collision is

  When a light beach ball rolling with a speed of 6.0 m/s collides wiba3g t/iq0 91kvsnd ;wth a heavy exercise ball at rest, the beach ball's speed after the coll/w vd;k91i0ng3tsbqa ision will be, approximately,

  A golf ball traveling 3.0 m/s to the right collides in a head-on collision lc 1*kqwjn47p with a stationary bowling ball in a friction-free environment. If the collision is almost perfectly elastic, the speed of thec lkp*4jw1q7n golf ball immediately after the collision is

  A rubber ball with a speed of 5.0 m/s collides heox)z:ex4g.sz 42 xvpm ad-on elastically with an identical ball at rest. Wh2.mg)zxpx4v :eo4zs xat is the speed of the initially stopped ball after the collision?

  A very heavy object movingev 88d(ia ,h6ged es,k with speed v collides head-on with a very light object at rest. The co 8g(ed8asvh, k 6de,iellision is elastic, and there is no friction. The heavy object barely slows down. What is the speed of the light object after the collision?

  A very light object moving with speed v collides head-on with a very heav.h3ek y smcxq3+ /,(3nsjnaqly object at rest, in a frictionless environment. xm+h3ql nsn/a3yk .qe 3,( jcs The collision is almost perfectly elastic. The speed of the heavy object after the collision is

  A red ball with a veloc gfwv)x4)qnb7du);fcnd0 f y7 x5 4xkdity of +3.0 m/s collides head-on with a yellow ball of equal mass moving with a velocity of -2.0 m/s. What is the velocity of the yellow ball after the cold7fw cvxfy bn0xn udgk 5)4)4dq) f;7xlision?

  A very heavy object moving with velocity v collides head-on with a very ligub(k 2o)hq3zs ht object moving with velocity -v. The collision is elastic, and there is no friction. The heau(o2 ) szkqhb3vy object barely slows down. What is the speed of the light object after the collision?

  In an inelastic collision, if the momentum im wo,(xeta sjr4 :es57s conserved, then which of the following stam7( jw ,xa:e o5rss4tetements is true about kinetic energy?

  Two objects collide an0kn24.9c qceg hgum1);b khmn d stick together. Kinetic energy

  A 3.0-kg object moves toxrl3l 36q 7ny ddq6ai( the right at 4.0 m/s. It collides in a perfectly inelas36n 7dqx dqlia (6l3yrtic collision with a
6.1 kg object moving to the left at 2.0 m/s. What is the total kinetic energy after the collision?

  A small object collides with a large object and sticks. Which object eg6k 78 a+wyilxxperienceslxkga+8y 67 wi the larger magnitude of momentum change?

  In a game of pool, the white cue ball hits the #9 ball and is deflectg/c u bl)lcun8:o/go 8g:b;hted at a $35^{\circ}$ angle to the original line of motion. What is the angle of deflection below the original line of motion for the #9 ball?

  Consider two unequal masses, M and mi-dy7yak f.: t wh sf91mtz0,x. Which of the following statements is falseyam0f:9,x-7 wif ky.tzd1sth ?

  Which of the following e-(fj gf:yi t9is a false statement?

  Tightrope walkers walk with ahp7(lx: ;u3 s9v ) 1xyutepx)n3yjaqr long flexible rod in order to

  A plane, flying horizontally, releases a bomb, which explodes before hittwba :j91m j:tting the ground.j1j tbt9w:am: Neglecting air resistance, the center of mass of the bomb fragments, just after the explosion

  Two cars collide head-on on a leve :5 utzt,ne,rzmmfehw;glyf5o b-kv(8 z )94fl friction-free road. The collision was completely inelastic and both cars quickly came to rest during the collision. What is true about the velocity of this system's center ot; ,g:) z5ff, letm mb-oywf45kzn( zruve8h9f mass?

State Newton's second law for a systc4-p ijijp / io4g2f03cjhg 1eem of particles.

  What is the momentum of59asem sffo2ua 71 c-j); dyvp a 2000-kg truck traveling at 35 m/s?

  A 1200-kg ferryboat is moving south at 20 m/s. What is t-av(rn wd 4 k;v6p*xth1q:x yihe magnitude of its mompdt61nh*:4(y ix vxwqkr v;a- entum?

  A ball of mass 0.10 kg iq3;p*tg tt g4rs dropped from a height of 12 m. Its momentum when it str gt4tpq3r;t*gikes the ground is

  Two identical 1500-kg cars are moving perpendiculaw 6ni ,56h3sp c-ps lnm. sglh ygb7o*vjv236ir to each other. One moves with a si7joi,swlnp6bpvg- * y 23l schg6 m6.hn35 vspeed of 25 m/s due north and the other moves at 15 m/s due east. What is the total momentum of the system?

  A handball of mass 0.10 kg, traveling horizontally at 30 m/s, strikes a wall - ab j04id6sn-zm:f ywand rebounds at 24 m/s. What is the change in the momentum of4j im- 60zds:nawf-by the ball?

  A 0.060-kg tennis ball, initially +kstg/,xjs sv8+vv ,hg b0it4moving at a speed of 12 m/s, is struck by a racket causing it to rebound in the opposite direction at a speed of 18 m/s. What is the change h+s0/ix4+k8v tbgv ,ss,t gjvin momentum of the ball?

  A 50-kg pitching machine (excluding the baseball) is placed on a fr3dt*msvpes ( bji r -;40/wiiwvw p7:sozen pond. The machine fires a 0.40-kg baseball with a speed of 35 m/s in the pmev 0 wi4wrb; s*s-vi7dj/3:ts w (iphorizontal direction. What is the recoil speed of the pitching machine? (Assume negligible friction.)

  A 70-kg astronaut is space-waf *-wzgxrnqc3 z(4y *alking outside the space capsule and is stationary when the tether line breaks. As a means of returning to the capsule he throws his 2.0-kg space hammer at a speed of-c( xy3gzqrw4f *n*az 14 m/s away from the capsule. At what speed does the astronaut move toward the capsule?

  A small object with momentum 5.0 kgm/s approaches head-on a large object at res k fet6(aj pzp)a:.0n8qg*zuat. The small object bounces straight8j.nkqaefzpa p a)* 0z(ug t6: back with a momentum of magnitude 4.0 kgm/s. What is the magnitude of the large object's momentum change?

  You (50-kg mass) skate on ice at ehc0ac6 fv2.v4.0 m/s to greet your friend (40-kg mass), who is standing still, with open arms. As you collide,cvhva0f2e. 6c while holding each other, with what speed do you both move off together?

  A car of mass 1000 kg moves to the right alo4khlt/qlffg 5(- mn*s ng a level, straight road at a speed of 6.0 m/s. It collides directly with a stopped motorcycf/l mqtk5l-*hsgn 4f(le of mass 200 kg. What is the total momentum after the collision?

  A 1000-kg car traveling at 25 m/s runs into the rear of a stopped car esf2nx )i,l ,um((aau that has a mass of 1500 ( ,ual fuix me2)n(as,kg and they stick together. What is the speed of the cars after the collision?

  A railroad freight car, mas9b nkyen;c9nr5lh)f ;s 15,000 kg, is allowed to coast along a level track at a speed of 2.0 m/s. It collides and couples with a 50,000-kg second ln)krefc y95; ;9hbnn car, initially at rest and with brakes released. What is the speed of the two cars after coupling?

  A railroad car, of mass 200 kg, rolls wit/pl fy::my ur4h negligible friction on a horizontal track with a speed of 10 m/s. A 70-kg stunt man drops straight down a distance of 4.0 m, and lands in the car. How mrl/ :4 y:fuypfast will the car be moving after this happens?

  A 60-kg person walks on a 100-kg log at the rate of 0.80 m/s (with respectdu:2g n p/,qvr to the log). With what speed doeqp,u2 n /rvg:ds the log move, with respect to the shore?

  A 4.0-N force acts for 3.0 s on an object. The force suddenly increassnqjwm17o4ie 9m5upz;/ 1ily es to 15 N and acts for one more second. What impulse was imparted by these force54lim1 im9 ys uq 17pze/;jowns to the object?

  A constant 9.0-N net force aczf 3;z 70ci;y upuf)ihts for 2.0 s on a 6.0-kg object. What is the object's change of velocit uzc;zy)3ufi0 ;7hifp y?

  A 2000-kg car, traveling to the righp 6 1is zasrjqw+1(1xct at 30 m/s, collides with a brick wall and comes to rest in 0.20 s1j s cwqi6 zpsr1xa(+1. What is the average force the car exerts on the wall?

  A 2.0-kg softball is pitched to you at 20 m/s. You hit the ball back along r hoztypdwxy.27.* /.ymtn/n the same x.hty2ywy/np mndo7.*. rzt /path, and at the same speed. If the bat was in contact with the ball for 0.10 s, what is the magnitude of the average force the bat exerted?

  A 0.10-kg ball is droppefnc:eu hc .sidfp ju;(1p,m* 9d onto a table top. The speeds of the ball right before and right after hitting the table top are 5.0 m.u,cfd;9np s*(1hif p cuj em:/s and 4.0 m/s, respectively. If the collision between the ball and the table top lasts 0.15 s, what is the magnitude of the average force exerted on the ball by the table top?

  A machine gun, of mass 35.0 kg, fires 50.0-gram bullets, with a muzzled+0amu4tci v(/pr+ff velocity of 750 m/s, at the rate of 300 rounds per minute. What is the4/+crmt f(dfvau 0+i p average force exerted on the machine gun mount?

  A fire hose is turned on the door of a burning building in order to knock the d6n be s2:/ 4srzrib,7 3k+tgwvbze hr1f(jbc:oor down. This requires a force of 1000 N. If the hose delivers 40 kg per second, what is the minimum velocity of the stream needed, assuming the water doesn't bounce b z f g:ih3stbb 71/,b6+ve(rrcrebkwjn4 :2szack?

  Water runs out of a horizontal drainpipe at the rate of 120 kg pew1mg 19;d (jpmfp 9ksit4yzb(r minute. It falls 3.20 m to th1z p94y1 md(9;bkjsig( t fmpwe ground. Assuming the water doesn't splash up, what average force does it exert on the ground?

  A toy rocket, of mass 0.12 kg, achieves a velocity of 40 m/s af(nd ;p lsf,6za, d;7 mxz6v+6dapvs:o5q f tfcter 3.0 s, when fired straight up. What average thrust force does6 aav:;57 mf(ns, t zdvcdl z6d,o+x 6;spffpq the rocket engine exert?

  Two astronauts, of masses 60 kg and 80 kg, are initially at1ue6)c.fufx7pmib lxdml18 j a84c;x rest in outer space. They push each other apart. What is their separation afte l1 xx6ccx1.dfjpi)fumb ;a748ul8em r the lighter astronaut has moved 12 m?

  A 3.0-kg object moves to the right with a speed of 2.0 m/s. It collides in( yzhv /ipz8 0q+d wnf/i:bl cjg3gs -,f,b:zn a perfectly elastic collision with a 6.0-kg object moving to tcq i-p8,zb /nwns :z/g3vg +0f,ifdyhbj(:lz he left at 1.0 m/s. What is the total kinetic energy after the collision?

  A 0.10-kg object witw qjex4l,w1p1+ xaxa2h a velocity of 0.20 m/s in the +x direction makes a head-on elastic collision with a 0.15 kg object initially at rest. What is the final velocity of the 0.10-kg object after collise1xw+ jq,4p xa1lx2 waion?

  A 10.0-g bullet moving at 300 m/s isye4wump5w k9tar.9e dgv -(zly 60f*c fired into a 1.00-kg block at rest. The bullet emerges (the bullet does not get embedded in the block) with half of its original speed. What is the velocity of the block right afte90cr(yazvme5td-kf gwp9*y. 4 6 luewr the collision?

  A proton, of mass m, at re9b+sfj5 bixj 6 rr m6 +l)j0gwfdgb/k:st, is struck head-on by an alpha-particle (which consists of 2 protons and 2 neutrons) moving at speed v. If the collision is completely elastic, what speed b96w:+gbd k g rimxf)f6jsr +5j/lbj0will the alpha-particle have after the collision? (Assume the neutron's mass equals the proton's mass.)

  A 50-gram ball moving +10 m/s collides head-on with a s 4lb3va-oh2dytationary ball of mass 100 4ba2d- hl vy3og. The collision is elastic. What is the speed of each ball immediately after the collision?

A ball of mass 400 g moving +kilfi xji *l(0az n5nz;.z)stoward the east with a speed of 3.70 m/s collides head-on with a 20; s.iialz+(z)jkf* 5 0nli nzx0 g ball sitting at rest. The collision is perfectly elastic.
(a) Determine the velocity of the first ball after the collision.
(b) Determine the velocity of the second ball after the collision.
(c) Is kinetic energy conserved in this collision?

  A 2.0-kg mass moves with a speed of 5.nl/c-2f b y 7qous* lhdn(*lp50 m/s. It collides head-on with a 3.0 kg mass at rest. If the collision is perfectly inelastic, what is the speed of the masses afhslcy7-fn (ln dlqo/52ub*p*ter the collision?

  A 2.0-kg mass moving to the east at a speed of 4.0 m/s collides head-on i k5(xtat(fr5mn a perfectly inelastic collision with a stationary 2.0-kg mass. How much kinfrt x(5 ka5(mtetic energy is lost during this collision?

  A car of mass m, traveling with a velocity v, strikes a par:6mris:8 xna fked station wagon, who's mass is 2m. The bumpers lock together in this head-on inelastic collision. r i:snf6x8 :am What fraction of the initial kinetic energy is lost in this collision?

A 15-g bullet traveling 213 m/s in a vertical .jcu hhv,8b8f direction buries itself in a 2.4-kg block of wood a rest directly above it. As a result, the bullet/block combination moves vertical8c.hvb8 f hj,uly upward.
(a) Determine the velocity of the bullet/block combination at the point of impact.
(b) Determine the maximum height reached by the bullet/block combination.
(c) Is kinetic energy conserved in this collision?

  A 1500-kg car traveling at 90.0 km/h east collides with a 3000-kg car trave d1;topft 53ppg-egb1ling at 60.0 kmo1 fb;gt tep35-gpdp1 /h south. The two cars stick together after the collision. (See Fig. 7-1.) What is the speed of the cars after collision?

  A 1500-kg car traveling at 90.0 km/h east collides with a5ae*2: h zr r/(zusfopm)j mn9 3000-kg car traveling at 60.0 km/h south. The two cars stick together after the collision. (See Fig. 7-1.)o:zr u a9m2 /s fj(n)5h*pzrem What is the direction of motion of the cars after collision?

  Two objects move on a level frictionless surface. Oboy-3kt m-/cuwaps sehm +d( ,oz9 w08zject A moves east with a momentum of 24 kgm/s. Object B moves north with momentum 10 kgm/s. They make a perfectly inelastic collision. What is the magnitude of their combinzw9as+ ,8po d/(umk0 ocwhez- 3my-tsed momentum after the collision?

  A small bomb, of mass 10 kg, is moving toward the North with a velocity ofx z7+p oj/1+iq .bkpkf 4.0 m/s. It explodes into three fragments: a 5.0-kg fragment moving west with a speed of 8.0 m/s; a 4.0-kg fragmek7bxqzk j1.fpi+p /o+nt moving east with a speed of 10 m/s; and a third fragment with a mass of 1.0 kg. What is the velocity of the third fragment? (Neglect air friction.)

  A 4.00-kg mass sits at the origin, and a 10.0-kg mass sits at x = + 21.0 mjmzsru kbxr*4+ nsj56x8zu z dlb67o(p:(8aw. Where is the center of mass on the x-axizbk:r*s jx788 (z54xdl(+rosmpb w a6jnu6 zus?

  The center of mass of a two-particle h mrx+1f,xc +rb-ek u i*:,xzpc1muvrla3f32 system is at the origin. One particle is located at (3.0 m, 0) and has a mass of 2.0 kg. What is the location of the second masu 1h v+c2ep,:ri craf3*,m-bmfr lxu3 1+xz kxs of 3.0 kg?

  Three masses are positioned as fola q*jow, ya4d)5tm e6llows: 2.0 kg at (0, 0), 2.0 kg at (2.0, 0), and dae*4m5qt jo wla ,)6y4.0 kg at (2.0, 1.0). Determine the coordinates of the center of mass.

  Three masses, 1.0 kg, 2.0 kg, and 3.0 kg, are loci juok9n(1. x1z(fbavx zx3f9fw-:vm ated at (0, 0), (1.0 m, 1.0 m), and (2.0zx9kwo1x3zm vb j(1i.x-ff:( uvnf 9a m, -2.0 m), respectively. What is the location of the center of mass of the system?

  A 3.0-kg mass is positioned at (0, 8.0), and a 1.0-kmjf biij7/61p g mass is positioned at (12, 0). What are the coordinates of a 4.0-kg mass whijbf1ii /76m pjch will result in the center of mass of the system of three masses being located at the origin, (0, 0)?

  Use Table 7-1 to calculatabq 8qw*m7hg :nx5 2jdtg4k,ae the position of the CM of a whole leg including the foot when the leg is stretched straight out. Assume the person is w52qa dm8j:hxnqg4g tk*ab,7 1.60 m tall.