What is the SI unit of momth ane(-91s(9 j4ltif vj +rvzentum?

  When a cannon fires a cannonball, the cannon will recoil backward because wswj j8*r8*iy*vug a .kzdq*+the

  A freight car moves along a frictionless level railroad track at co9cju yiew v(4 ya hz(5: ;*sqfyu(tw-dfm.9 gtnstant speed. The car is open on top. A large load of coal is suddenly dumped into the car. What happens to the veyuf (gat(e4 .:9t59yyhs (fwdqvj m*-uc wzi;locity of the car?

  A child falls sideways off a s377xzbsa /b dbkme2 0xled while sledding on frictionless ice. What happens to the3 b 7/bx 07mazkbedx2s velocity of the sled?

  A rubber ball and a lump of putty have equal mass. They are thrown with 6: *06z(i0hdzjm /rwi v c+t*qibswjxequal speed against a wall. The ball bounces back with nearly the same speed with which it hit. The putty sticks to the wall. Which objects expc+z60 jds(wv*:0/ji bh z* iqwm r6itxeriences the greater momentum change?

  A sailboat of mass m is moving with a momentum p. How would you represent its kew z/v1 wm 4c2l9c*n1cjlf 9mdinetic energy in terms of these 99ldz1j mlwcv2f1 cw*n/c m e4two quantities?

  If you pitch a baseball with twice the kinetic energy w:7v :l.gjnjpxl 9y5jyou gave it in the previous pitch, the ml pw7l gv:x:.5yjjnj9agnitude of its momentum is

State Newton's second law in tep1j ljz(3o.;74ds5nia/nc a+i yvojs rms of momentum.

State the law of conservnleot/cj )yqi g(;3x *ation of momentum.

  The area under the curve on a Force versus time (F vs. t) graph j:vos-+z-vgh represents

  Which of the following ihx9p(2w1 ky /tfkl/jns an accurate statement?

  A small car meshes with a lar7 oqjh,o bw6*wge truck in a head-on collision. Which of the following statements conceb6ow7hoq *,jw rning the magnitude of the average collision force is correct?

  Two equal mass balls (one red and the other blue) are dropped from the sp ,/4hqw;7bxuf. v ealgm /:pname height, and rn.p, 4lf; eqh/p:wa/buv7m xgebound 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 the floor?

  A Ping-Pong ball moving east at/mjabx4 ;zc2:cb.ft) ).oaf+ a gxtpf a speed of 4 m/s, collides with a stationary bowling ball. The Ping-Pong ball bounces ba .c2g4pbx:j.ffma)tab)z+;a ocx t/fck to the west, and the 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. Linearjzh f5ji1qf:2b f.s ohj :(qb; momentum

  A 3.0-kg object moves to the right at 4.0 m/s. It corp)g15+wk v f2m3b:c-q wrll rllides head-on with a 6.0-kg object moving to the left at 2.0 m5) r3cgrfvpw- lb mr1l wk:+q2/s. Which statement is correct?

  A 100-kg football linebacker moving at 2.0 m/s tackles head-on an 80-kg halfbg zdj1bfz- -l v3)u+.;wcnvq dack runn+djbzn- l)vd-1g qcv3 z;wfu.ing
3.1 m/s. Neglecting the effects due to digging in of cleats,

  In an elastic collision, if the mom7t6 id70z a0xl.b, d2ynvuri centum is conserved, then which of the following staltu 0 xb2ri7vacnid y,6dz07. tements is true about kinetic energy?

  When is kinetic energy conservbk a331nsr51d n3uyshed?

  In a game of pool, the wh+pi:d 2 hpozg9v/xv 0;i9xavxz fmk8;ite cue ball hits the #5 ball and stops, while the #5 ball moves away with the same velocity as the cue ball had originall09ivp kvix+ pxh8:ao /gm29 ;vfd;x zzy. The type of collision is

  When a light beach ball rolling with a speed of 6.0 8 y85t) -btcugsuezn4m/s collides with a heavy exercise ball at rest, the b ttez8bcyns 84g5)u-u each ball's speed after the collision will be, approximately,

  A golf ball traveling 3.0 m/s to the right collides in )- , nl* cuon.t/exsn7s tda8ya head-on collision with a stationary bowling ball in a friction-free environment. If the collision is almost perfectly elastic, the speed of the golf bad-t8encu7nxsyln/ )t o,* .a sll immediately after the collision is

  A rubber ball with a speed of 5.n*b) 2rli sk7m0 m/s collides head-on elastically with an identical ball at rest. What is th)kri slbn*72m e speed of the initially stopped ball after the collision?

  A very heavy object movi+;ni k.79fgyg nghs5v ng with speed v collides head-on with a very light object at rest. The collision is elastic, and hn5; + sk givgf.yn9g7there 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 o sm .dt1c :r3t*3kqdjwith speed v collides head-on with a very heavy object at rest, in a frictionless environment. The collision is almost perfectly elastic. The speed of the heavy object after the collisim1dtt *:sod3j3q rkc.on is

  A red ball with a velocity of +3.0 m/s collides head-on with a yellow ball of ;f3 n6-b+ g,(wiq jsydi.y*evak+zz qequal mass moving with a velocity of -2.0 m/s. What is the;zq j .,+yqv6adsgk3+iy*( fiwnbe- z velocity of the yellow ball after the collision?

  A very heavy object moving with velocity v collides head-on with a very lighto9)hoh2edy8o /kkxw d,qhh,; object moving with velocity -v. The collision is elastic, and there is no ; o h oyh9wq h)xk,2h8oedd/k,friction. The heavy object barely slows down. What is the speed of the light object after the collision?

  In an inelastic collision, if tt5 owsg qth -lqa3ai- ,x-(p)uhe momentum is conserved, then which of the following statew s3-o a( 5it-gth-aqpq ,)xulments is true about kinetic energy?

  Two objects collide and stick tohos lw:r*+xc3.l (kipgether. Kinetic energy

  A 3.0-kg object moves to the right at 4.0 m/s. It co68fbxk.z tqm3 llides in a perfectly inela3.zf 8 bmt6qkxstic 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 6x0cevhd )o0r large object and sticks. Which object experiences the larger magnitude v) c0erx6hod0 of momentum change?

  In a game of pool, the white cue balls)n vad47dk a jccv.p/3 ,(c(s6 +7yzs hwtxbo hits the #9 ball and is deflected 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 m. Which oo xm2f-g/i duhp4 0b-uf the following statements is false?xo4g ufhm- d02ub/i- p

  Which of the following is a false statemenlocgg-8e(ko /,gni 6vt?

  Tightrope walkers walk with a long50rntuf -n vyo8wp:uz (c7 2vr flexible rod in order to

  A plane, flying horizontally, rek )sd.a1fg cveov /l00leases a bomb, which explodes before hitting the ground. Neglecting air resistance, ts/ldf v.k0vo0g)ae1che center of mass of the bomb fragments, just after the explosion

  Two cars collide head-on on a level friction-free p* 683(j2qc pdozlatwroad. The collision was completely inelastic and both cars quickly came to rpa2 q tw3l6d*p cz8j(oest during the collision. What is true about the velocity of this system's center of mass?

State Newton's second law for a system of particlg(jk- gr16, zlchsq0 kes.

  What is the momentum of a 200kxw2 y6( tb ao* 5mepnx;)+iq i+ve;ka0-kg truck traveling at 35 m/s?

  A 1200-kg ferryboat is moving sj:vo: b(b cdhnmw 1wp9 *fv-o*outh at 20 m/s. What is the magnitude of its momentuf:jcwv -o9( bw p1do:**bnmh vm?

  A ball of mass 0.10 kg is dropped from a height of rag kuw j*02m+sgy02u12 m. Its momentum when it stri kg +2r* yj0um20awsgukes the ground is

  Two identical 1500-kg cars are moving perpendicular to each other. One movgh(8gqp .k8bies with a speed of 25 m/s due north and thgph kb(g.8iq8 e other moves at 15 m/s due east. What is the total momentum of the system?

  A handball of mass 0.10 kg, traveling hori: j67yzu5wwb d xhm.t8zontally at 30 m/s, strikes a wall and rhj.5db: wyu 687t zxwmebounds at 24 m/s. What is the change in the momentum of the ball?

  A 0.060-kg tennis ball, initially movizors v)ps,/0a ng 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 in momentum of the sa,)0pzor sv /ball?

  A 50-kg pitching machine (excluding the baseball) is plagzn0 i0p aj6m ;ajd2q0ced on a frozen pond. The machine fires a 0.40-kg baseball with a speed of 35 m/s in the horizontal direction. What is the recoil speed of the pitching macq 0d0n2ja0ag6 j p;mzihine? (Assume negligible friction.)

  A 70-kg astronaut is space-walkintp28)5v p/eyeiu+huo7jw qu ,b,zq2gg 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 hamme+qei/qh8vj zgpo7upt 5b2uu, 2y ew) ,r at a speed of 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 rest0/dktue n0b:jexu b0 1. The small object bounces straight back with a momentum of magnitude 4.0 kgm/s. Wx/e 0e:1buntu 0b k0jdhat is the magnitude of the large object's momentum change?

  You (50-kg mass) skate on ice .g ehg ujk40qw,nvr81 at 4.0 m/s to greet your friend (40-kg mass), who is standing still, with open ak8qhj1rn gewv,g.4u0 rms. As you collide, while holding each other, with what speed do you both move off together?

  A car of mass 1000 kg moves to the right along a level, straight00b* n:p grcot road at a speed of 6.0 m/s. It collides directly with a stopped motorcyclgo0t n0p*:rbce of mass 200 kg. What is the total momentum after the collision?

  A 1000-kg car traveling at 9; ,yfdzac eetd i7l:hp6t: fh v2:xm225 m/s runs into the rear of a stopped car that has a mass of 1500 kg and they stick togetherf2c :d9, eihdv6fhzyla;:7 mx2e t:tp. What is the speed of the cars after the collision?

  A railroad freight car, mass 15lephc n:u)e 3s2f/ yk4,000 kg, is allowed to coast along a level track at a speed of 2.0 m/s. It collides and couples withnpefu3csle) y: h2k/4 a 50,000-kg second 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 with neglhflb7v /wd 26fh z54fcigible 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 fast will the car be moving aft4dbh/cfffl6z7 v hw52er this happens?

  A 60-kg person walks on a 100-kg log at thw c, ,m0ow :bfgc-l-xbe rate of 0.80 m/s (with respect to the log). With what speeol0cb wf-wc x:, ,g-mbd does the log move, with respect to the shore?

  A 4.0-N force acts for 3.0 s on an object. The force suo3 8kb m9yymyf- ta;+iddenly increases to 15 N and acts for one more second. What impulse was imparteom9 km8 if+t3y-yy;bad by these forces to the object?

  A constant 9.0-N net force acts for 2.0 s on a 6.0-kg object. Whatckpc +(/b zd4 cu.*ixi is the object'sc d *u(zxpcki/. icb4+ change of velocity?

  A 2000-kg car, traveling to the right adojfihdiv2*t ;w 6 ;w/t 30 m/s, collides with a brick wall and comes to rest in 0;dd/;ho* ww 2jfvit6 i.20 s. 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 the *fq v6xp- +sp*dy0q posame 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 6qsv*pd qopfp+- x*y0bat exerted?

  A 0.10-kg ball is droppe7gh5qv.n4w jb /ktx 0od onto a table top. The speeds of the ball right before and right aftx hto vkq4.bn0g7wj5/er hitting the table top are 5.0 m/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,kla//vfh a / ib;9u29 trpl9s-. 3ptyfdtbm*f with a muzzle velocity of 750 */ud9 lma/kvs9 bt t;flapy9 i 3bf-ph/f.rt2m/s, at the rate of 300 rounds per minute. What is the average force exerted on the machine gun mount?

  A fire hose is turned on the door of a qtfpk v2p2,m:fp 5 yv+burning building in order to knock the door down. This requ 25pvvp:y k,qft+mp2fires 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 back?

  Water runs out of a horizontal drainpipe at the rategq9(sfyn+ gy/rusyz 72td 5j 8 of 120 kg per minute. It falls 3.20 m to the ground. Assuming thrzggy 2dnq8sjf9+ ( sytu7/5ye 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 after 3.0 s,wud;u 7*0b9q bm p.ssi when fired straight up. What average thrust force do b ims7u0sqd;ubw *p9.es the rocket engine exert?

  Two astronauts, of masses 60 kg and 80 kg, are initially at rest in outey2f/m8v( ec r prm:hg0r space. They push each other apart. What is their separation after the lighter am gphm20r:r f(v/c e8ystronaut has moved 12 m?

  A 3.0-kg object moves to the rb03okduz2 )(mj eag,, zfdz)dight with a speed of 2.0 m/s. It collides in a perfectly elastic collision with a 6.0-kg object (o) u3,bzdd2 0),zgjk eadfmzmoving to the left at 1.0 m/s. What is the total kinetic energy after the collision?

  A 0.10-kg object with a velocity of 0.20 m/s in9j7p yi1e guup *u2y9a the +x direction makes a head-on elastic collision with a 0.15 kg object initially at rest. What is *u7j p21i yeugapyu99 the final velocity of the 0.10-kg object after collision?

  A 10.0-g bullet moving at 300 m/s is fired into a 1.00-kg block at rest. Tvps+ e36m xh( z2muf8yhe bullet emerges (the bullet does not get embedded in the blsxfum3v+82 ph6m e(zyock) with half of its original speed. What is the velocity of the block right after the collision?

  A proton, of mass m, at rest, is struck head-on by an alpha-part9ai k 0mwu)+ol :lmv.wicle (which consists of 2 protons and 2 neutrons) moving at speed v. If the collision is completely elastic, what speed will the alpha-particle havk )awimu 0.w+l9 ovlm:e 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 stationary ball of m-j;2h.cf yhkhe0g *g hass 10h-gfyh ; jekh 0h2*.gc0 g. The collision is elastic. What is the speed of each ball immediately after the collision?

A ball of mass 400 g moving toward the east with a speed of 3.70 m/s collides exebg i-g+) x.head-on with a 200 g ball sitting at rest.gb-g.ex+ x)ie 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 5.0 m/s. It collid;r7xi5imp -)p; a1d 3ass cctqes head-on with a 3.0 kg mass at rest. If the collipct;;dc5rq 1x3 as7)-spii m asion is perfectly inelastic, what is the speed of the masses after the collision?

  A 2.0-kg mass moving to the ii 1 ab(7w (siw,udms6 ed)p-b lp:d(beast at a speed of 4.0 m/s collides head-on in a per7ie u)6ldi ab( m-w,d1sbsdpb( i(: wpfectly inelastic collision with a stationary 2.0-kg mass. How much kinetic energy is lost during this collision?

  A car of mass m, traveling with a velocity v, strikes a parked station wagon, n t a7td.kaa0fa+lu+3who's mass is 2m. The bumpers lock together in this head-on inelastic collision. What fraction of the initial kinetic energy is lost in this collis+tn.k0uaa+a l ft73daion?

A 15-g bullet traveling 213 m/+, , cf9jny tkczkr0n+s in a vertical direction buries itself in a 2.4-kg block of wood a rest directly above it. As a result, the bullet/block combination move+ nkzcn9 kfrj,0y,+cts vertically 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 eaa,jvq9b d9h e ( y5qy7(jbz.kwst collides with a 3000-kg car traveling at 60.0,zk9be b h(.j (w7q5a9d vyyqj km/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 g57dnp-9 jjs i8j k8ycq20htz with a 3000-kg car traveling at 60.0 km/h8ht-nji9g z2 0jcyqjdp7k8s5 south. The two cars stick together after the collision. (See Fig. 7-1.) What is the direction of motion of the cars after collision?

  Two objects move on a level frictionless surface. Ob+wa4t e1 g. 0atf3mciaject A moves east with a momentum of 24 kgm/s. Object B moves north with momentum 10 kgm/s. They4t31 iea .afmtc+wag0 make a perfectly inelastic collision. What is the magnitude of their combined momentum after the collision?

  A small bomb, of mass 10 kg, is moving toward the North with a velo: /ufgqvm;w ohypd18v+a -.pi city of 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 fragment movi qdof:1gu8 vhip /ya+vp;m. w-ng 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 ae)rtin; i3 u1ft x = + 21.0 m. Where is the center of mass on th u3n;)ftii e1re x-axis?

  The center of mass of a two-particle system is at the origin. One particle is l: fk)f7w+e+8r: )+qgtmgbca fl5ok okocateqgtk) +r:wf7 af5+kb ekl+m8:fgooc) d at (3.0 m, 0) and has a mass of 2.0 kg. What is the location of the second mass of 3.0 kg?

  Three masses are positioned as follows: 2.0 kg at (0/b0xamvdu)nem j g +/8, 0), 2.0 kg at (2.0, 0), and 4.0 kg at (2.0, 1.0). Determine the coordinates of the cev/+ nmu 0/x)g ebd8ajmnter of mass.

  Three masses, 1.0 kg, 2.0 kg, and 3.0 kg, are located at (0, 0), (1.0 m, 1.0 m,pc :yx:jpm)p ), and (2.0 m, -2.0 m), respectively. What is the location of the center of mass of the :cj:pp , )pmyxsystem?

  A 3.0-kg mass is positioned at (0, 8.0), and a 1.0-kg mass is posi-di5 3x7czfm;no6e+rc (yxg jtioned at (12, 0). What are the coordinates of a 4(dj f+-xcye6 3 g7zi5nmc xor;.0-kg mass which 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 calculate the position of the CM of a f , em 1iiebq23xiivq4v:yw7/whole leg including the foot when the leg is stretched sti/7miqvv:3bf iw q,xiy 4e2e1raight out. Assume the person is 1.60 m tall.