What is the SI unit of momentum?h w) 3iprtx4:3g qdzw2

  When a cannon fires a cannonbx+li4si- y8-mjp p;a n3jjca 4all, the cannon will recoil backward because the

  A freight car moves along a frictionless level railroad z:3 h6gd /sqk.fi*xaftrack at constant speed. The car f6z* f.dh /sxqg 3a:ikis open on top. A large load of coal is suddenly dumped into the car. What happens to the velocity of the car?

  A child falls sideways ofy7pm,a) p /y,hm5x tf2tuqe n5oc(q l/f a sled while sledding on frictionless ice. What happens to the velocity of y,q2 mtuo ptn hy)m5,/pe(/qaf5l c7x the sled?

  A rubber ball and a lump of hu9p3xd )a,oj putty have equal mass. 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 wall. Which objects expex,j3)ud ho9a priences the greater momentum change?

  A sailboat of mass m is moving (ebu5(nwq *l jl)qs;o with a momentum p. How would you represent its kinetic energy in terms of e(jn5b)qs;qlwu o(l*these two quantities?

  If you pitch a baseball with twice7r q2 5zkd9xw8x 7mzdh the kinetic energy you gave it in the previous pitch, the magnitude ofm 7dqxrhz z75kx8d29w its momentum is

State Newton's second law in terms of momentum.pz ;kuw.0y b1jcr5y+q

State the law of conservation ofjl)m2; fwmpnj x2pzkr; a2/ r9 momentum.

  The area under the curve on a Force versus time (F mra:q wc9wnld:2 0k9 r.7ybbsvs. t) graph represents

  Which of the following is an accurate st)lqewc.n5qs 2 atement?

  A small car meshes with a large truck in a head-on collision. Which of the foll w:9vlujx xrd5 o7 9,swqbi;)qowing statements conced9 lr:qvwjwoq ,sxu)x9 5 ;7birning the magnitude of the average collision force is correct?

  Two equal mass balls (one red and the other ks, fxfc(mq sv x(e:xuz8/.f 4xl02fublue) are dropped from the same height, and rebound off the floor. The red ball rebounds 8kxsxx uu0lf vf.sfcq,2f/ ((e:xz 4mto a higher position. Which ball is subjected to the greater magnitude of impulse during its collision with the floor?

  A Ping-Pong ball movt zwgg8)cf -.ning east at a speed of 4 m/s, collides with a stationary bowling ball. The Ping-Pong ball bouncwg ncfg- 8).ztes back 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. Linear momentcpxd(zwh9/ 0 fu0 gbpdh9( zs1um

  A 3.0-kg object moves to the right at 4.0 m/sdtn55hc*h ix e cn9s..vap4b1. It collides head-on with a 6.0-kg object .9nps5*t.x abevhn45 hc d c1imoving to the 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 80-+1uhbl9 0lf6s yq2y cxkg halfback runniclby uxh9sf0l y61+ q2ng
3.1 m/s. Neglecting the effects due to digging in of cleats,

  In an elastic collision, if the momentum is conserved, then which of the41kyk5+9+wea ondlrf, ouyd- f e)up- following statemenr w- +ydu1ffo lu,9k y-e) +d4epnak5ots is true about kinetic energy?

  When is kinetic energy con :i9w6 fl.sbaehd) 9zkserved?

  In a game of pool, the white cue ball hits the #5 ball and stopso q*tx+ xso,l)d0p,fj , while the #5 ball mo f ,s0p)dxt*oqj,xlo+ves away with the same velocity as the cue ball had originally. The type of collision is

  When a light beach ball rolling with a speed oflm56vbeh)n ql3- -q/dubhj2 n 6.0 m/s collides with a heavy exercise ball at rest, the beach ball's speed after the collision will bq36) v/h l5m b- djqln2nhe-bue, approximately,

  A golf ball traveling 3.0 m/s to the right collides in a head-on collision withd8)o2t lm6ljkbp lf-1 a stationary bowling ball in a friction-free environmellomblfk1 )t pj -268dnt. If the collision is almost perfectly elastic, the speed of the golf ball immediately after the collision is

  A rubber ball with a speed of 5.0 m/s collides he(+j(w,ex xsz)):gz zam)nf rdad-on elastically with an identical bxf )()z,sewg x+: a )zzd(jrnmall at rest. What is the speed of the initially stopped ball after the collision?

  A very heavy object moving with sper+l4utb0 y+o ped v collides head-on with a very light object at rest. The collisioty ur bl0++4pon 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 heaot z6 voiy+9,md-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 9om6+ tyo,vz icollision is

  A red ball with a velocity of +3.0 m/s collides head-on - 8yznv3bky+acf lm86 with a yellow ball of equal mass moving with a velocity of -2.0 m/s. What isvl3z+ycn68ymfa b k8- the velocity of the yellow ball after the collision?

  A very heavy object moving with velocity v collides head-onyg3 esvr f*t/-p/k0fr + dr/xf with a very light object moving with velocity -v. The collision is elastic, and there is no friction. The heavy object barely slows down. What is the speed of the light objecp/xrrks +d 3y*rvfgf0-//tf et after the collision?

  In an inelastic collision, if the momentum is conserved, then which ol9y 5ty f,wy5ldj(0ozf the following statements is true about kinetic energy? 9t,yy5y05zlfod (jwl

  Two objects collide and stick tog7 /oo7pq:yp (gef8q ixb e4zwc,b:ol+ether. Kinetic energy

  A 3.0-kg object moves to the right at 4.0 mp;lovr o1 ov*lkb80*9+ca(7mm mwxfp/s. It collides in a perfectly inelastic collision l olm b*0mpo7w1f+9omcvpx;rv8( ka*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 8 kjsud c7cy54/)r,o sxd9 xsaa large object and sticks. Which object experiences the larger magnitude of mosjasd,4cd5k)so 8yu xr cx/ 79mentum change?

  In a game of pool, the white cue ball hits the #9 ball and is deflected a2xg f)yoy3+u g-oj *5 id+myam0nye w-t 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 of the following stat/ojh)(ea)l9jx n qsn y+drw wa m9o(24ements is falsewoalx(9r2dnw jy / s+o mqh )ej9a(4)n?

  Which of the following is a false stm ua5nty9hy( on4e qhsd,/c4-sp0x0 uatement?

  Tightrope walkers walk with a long flexible rod in order tfi nx8,a; n,xno

  A plane, flying horizontally, releases a bomb, which explodes before hitting thev5 rbzkgph hp1(4 34vn0a0baj ground. Neglecting air resistance, the center of mass of the bomb fragmepvga 01vbjahb4 054krpzh(3nnts, just after the explosion

  Two cars collide head-on on a level friction-free road. 31;rs ssvs ng .n8vdf6zj7o*z9y2ddkThe collision was completely inelastic and both cars quickly came to rest during the collision. What is true ab72.v z61jnr*83z nos gs; sddkf9dvsyout the velocity of this system's center of mass?

State Newton's second6z b.d w 27q6k4j 4mxzcq.vpkv law for a system of particles.

  What is the momentum of a 2000-kg truck traveling at 35 m/s?rr11jcnw2h/d:quk v3

  A 1200-kg ferryboat ijxqga2 w(u 3i*s moving south at 20 m/s. What is the magnitude of its momentum?gj (aq *wx3iu2

  A ball of mass 0.10 kg fcgq/(, h uz f:7aoaqqg5ob70is dropped from a height of 12 m. Its momentum when it strikes thga:qbqz q0 g7 /f7 (,of5ocauhe ground is

  Two identical 1500-kg cars are moving perpendicular to each othm pxao49n+ff6 er. One moves with a speed of 25 m/s due north and the other moves at 15 m/s dn49mfx o af6+pue east. What is the total momentum of the system?

  A handball of mass 0.10 kg, traveling horizontally at 30 m/s, strikes a wald y:qx(y:o.yvl and rebounds at 24 m/s. What is the change y vx.yo(:yd:q in the momentum of the ball?

  A 0.060-kg tennis ball, initially moving,j4-jq vj -bfc 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 baljqv-,c -4jfb jl?

  A 50-kg pitching machine rnkf3fgau;9si e r8r6ro3(( w(excluding the baseball) is placed on a frozen pond. The machine fires a 0.40-kg bseg (ir3wo(nr 3rakff u 68;9raseball with a speed of 35 m/s in the horizontal direction. What is the recoil speed of the pitching machine? (Assume negligible friction.)

  A 70-kg astronaut is space-walking outside the ic yhe02gm: i4space capsule and is stationary when the tether line breaks. As a me i20m4c:iyhg eans of returning to the capsule he throws his 2.0-kg space hammer 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 ov )y5b0ux1o-rzy/hf;etd n58g wy 1vy bject at rest. The sm;v/wh5yoz5-gryvd)8 u f0by1 tx 1yenall object bounces straight 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 4.0 m/s to greet your friend (40-k9ktg; lsnbm1 u+9x eqlae 634gg mass), who is standing still, with open arms. As you collide, while holding each other, with wht9sqe g b6+lmlgaeu 43;nx1k9 at speed do you both move off together?

  A car of mass 1000 kg moves to the rig7yi)op:7 rlhj f vs/c2yc05pyht along a level, straight road at a speed of 6.0 m/s. It collides directly with a stopped motorcycle of mass 200 kg. Wha ih:csp270y rjpvyc ol/7y5 )ft is the total momentum after the collision?

  A 1000-kg car traveling at 25 m/s runs inm*l u-9oq ox1nto the rear of a stopped car that has a mass of 1500 kg and they stick together. What is the spee-lxn1m*uqoo 9d of the cars after the collision?

  A railroad freight car, mass 15,000 kg, is allowed to coast along a level tracy4ki458rxxz xt a/4ps k at a speed of 2.0 m/s. It collides and couples with a 50,000-kg second car, initially at rest and with brakes released. What is the speed of r xky/as44x8 4zix 5tpthe two cars after coupling?

  A railroad car, of mass 200 kg, rolls with negligible frictu8 e tbc3g(9ido b6;tt +t+ovuion on a horizontal track with a speed of 10 m/s. A 70-kg stunt man drops straight tu3t+bbu+8 o t6v(9c;oit egd down a distance of 4.0 m, and lands in the car. How fast 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 (withfqj q(l*;wq, w/,fh2 ans;jz f respect to the log). Wiq;;(,ff j ww2/fn, qjlz* sqhath what speed does the log move, with respect to the shore?

  A 4.0-N force acts for 3.0 sh 4d4rk8rj.z.((q n s9.gajwoa1lqe j on an object. The force suddenly increases to 15 N andj 8..zw4hl(ka9 osr4qearg.(j d q1jn acts for one more second. What impulse was imparted by these forces to the object?

  A constant 9.0-N net force acts for 2.0 s on ae )7j+ fi,ymoa 6.0-kg object. What is the object's change o +f yeoa,)m7ijf velocity?

  A 2000-kg car, traveling to the right at 30 m/s, collides wia3acumlstf*(ze q( (r 8e 4e+xth a brick wall and comes to rest in 0.20 s. What is the ave3*(x+s 4arc e8za(u (teqfm lerage 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- i*w eai w-n:;;yrmyj same path, and at the same spee; - *yar;ewi-jin: wymd. 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 dropped onto a tabl3: zhd0t nanm;qti5 81ty) zcy0y2dote top. The speeds of the ball right before and right after hitting the table top are 5.0 m/:t1 n 5 czd8nty;yq a zmt30d)h20otyis 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 50.0-6y 9zmvmwtp8x,/x ;logram bullets, with a muzzle velocity of 750 m/s, at the rate of 300 rounds /w8 pvyo6m;9tml,x zxper minute. What is the average force exerted on the machine gun mount?

  A fire hose is turned on the doohac2ztu7f ;g/0ey d-ar of a burning building in order to knock the door down. This requires a force of 1000 futa-/ad7h; z 2e cyg0N. 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 rate of 120 kg pefa0x.ja+ u5w ur minute. It falls 3.20 m to the ground. Assuming the water doesn't splj.5uux+ aw 0afash up, what average force does it exert on the ground?

  A toy rocket, of mass 0-*vvg6l+q ph w+/it75kg ;twjbl 5 oro.12 kg, achieves a velocity of 40 m/s after 3.0 s, when fired straight up. What average thrust force does the rocket g ql56-p+oitl *+ wrwb/7; o5kgvtjhvengine exert?

  Two astronauts, of masses 60 kg and 80 kg, a8xkf1 6 thi182tm ihltre initially at rest in outer space. They push each other apart. What is their separattli 1mthk86 txf18 ih2ion after the lighter astronaut has moved 12 m?

  A 3.0-kg object moves to the right with a speed o-oesq /: ;dzhxf 2.0 m/s. It collides in a perfectly elastic collision with a 6.0-kg object moving to the left at 1.0 m/s. What is the total ki :-ds;oxez /hqnetic energy after the collision?

  A 0.10-kg object with a velocity of 0.20 m/s in the +x directiodko2(cyy 3 :kr64 ebzzn 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 k:kz 3rd6bce2 4 zyo(ycollision?

  A 10.0-g bullet moving at 300 m/s is fired into a 1.0ljh0uhl6 ( bly*9 lx9e0-kg block at rest. The bullet e(lb9 hju lxy0 *l6h9lemerges (the bullet does not get embedded in the block) with half of its original speed. What is the velocity of the block right after the collision?

  A proton, of mass m, b4*tjr,hu5c*kc0 g slpij: g5at rest, is struck head-on by an alpha-particle (which consists of 2 protonslckh *bit u,0r554jp g*c j:gs and 2 neutrons) moving at speed v. If the collision is completely elastic, what speed will 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-oqe(5-acpm xr(n with a stationary ball of mass 100 g. The collision is elastic. What is the speed of each ball immed5re-((amcpq xiately after the collision?

A ball of mass 400 g moving toward the east with a speed of 3.70 mkbp* g- l,o6m fnc79vc/s collides head-on with a 200 g ball sitting6g* c9no-kcl7,bp fvm 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 5.0 m/s. It collides head-on w be05sgj7 h3k8olkry; ith a 3.0 kg mass at rest. If the collision is perfectly inelastic, what is the speed of th85;k jel by3rk0h7gso e masses after the collision?

  A 2.0-kg mass moving to the east at a speed of 4.0 m/s collides head-on in ata 3 nz/oa5 jzj/iosf7z7j9y9n (s+fy perfectly inelastic collision with a sta j/ty/js99 37fizjoyno z 5fzs(7+anationary 2.0-kg mass. How much kinetic energy is lost during this collision?

  A car of mass m, traveling with a velocity v, qv9em6 /o oph(strikes a parked station wagon, who's mass is 2m. The bumpers lock together in this head-on inelastic collision. h(mopevq6/o9 What fraction of the initial kinetic energy is lost in this collision?

A 15-g bullet traveling 213 m/s in a vertical direction bur-ja. bs0 p5ahzies itself in a 2.4-kg block of wood a rest directly above it. As. zapa0b5h-j s a result, the bullet/block combination moves 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 travelwy 0k dok)yckf7q;+)m ing at 90.0 km/h east collides with a 3000-kg car traveling at 60.0 km/h south. The two cars stick together after the collision. (See Fig. 7-1.) What is the speed of the cars after collk kq) k0mc;dw y)+foy7ision?

  A 1500-kg car traveling at 90.0 km/h east collides with 9 d9+ 2fvmza02xno.q k1ljtuca 3000-kg car traveling at 60.0 km/h south. The two cars stick togethe1cx.9 ja+kvundmt fq0zl 2o29 r after the collision. (See Fig. 7-1.) What is the direction of motion of the cars after collision?

  Two objects move on a level frictionnk lkewd8 7a-:lqdx8 *less surface. Object 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 combined momentum after the cow *7k n8e:l-k qdlx8adllision?

  A small bomb, of mass 10 kg, is moving toward the North with a velocity of 4.04idnl4/kj 3 an 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 moving east with a speed of 10 m/s; and a third fragment with a mass of 1.0 kg. What isk 4ldn3n4jia / the velocity of the third fragment? (Neglect air friction.)

  A 4.00-kg mass sits at the origin, and a 10.)b :z+ flulu+- kkwi;p0-kg mass sits at x = + 21.0 m. Where is the center of mass on)u+z- :p bilw fkk+;lu the x-axis?

  The center of mass of a two-particle system is at ik8ylr,t se pkh7:/tik ,c:2mthe origin. One particle is located at (3.0 m, 0) and has a mass of 2.0 kg. What is the location ofcerm s2p,i/ht8 ti :kk k7l:y, the second mass of 3.0 kg?

  Three masses are positioned as follows: 2.0 kg at (0, 0), 2.0 kg at (2.0tg un4uwc8m,ga+d )d+b4du e5om sb47, 0), and 4.0 kg b+od+4ug, 8 deb5mgm d7 tw 4)uncsua4at (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 located at (0zf efmh86yv4;edruk a7nkit:u+d. ; /, 0), (1.0 m, 1.0 m), and (2.0 m, -2.0+drtvk.f4f e ;n7ayu :z6/ekh8im; du 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),aj34l c-ch5 ewr2bs9z and a 1.0-kg mass is positioned at (12, 0). What are the coordinates of a 4.0-kg mass which will result in the center of mass of the system of three r3w-25 z4c9bleacjs hmasses being located at the origin, (0, 0)?

  Use Table 7-1 to calculate the positi+oplu)ecg9o : ;w. fyson of the CM of a whole leg including the foot when the leg is stretched straight out. w sg oy9loc:up+e .f);Assume the person is 1.60 m tall.