What is the SI unit of momentc74 i)qjdj it6um?

  When a cannon fires a cannonball, the cannon will recoil backward because tabi0:z(5ydp s he

  A freight car moves along a frictionless level railrchaq)zp+24 tkoad track at constant speed. The car is open on top. A large load of coal is suddenly dumped into the car. What happens to the velocity of the car?+qt 4)za 2chkp

  A child falls sideways off a sled while sledding on frict3 ntq2ccj n(e7tue:fow+fk( 5ionless ice. What happens to +(ekn2nqt cec5 o :w 7(3jffutthe velocity of the sled?

  A rubber ball and a lump of putty havekrw2 67/ rl+xxb 5;zttzv hpd3 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 or6t2x7 pzrz d 3bh x;tkvwl5/+bjects experiences the greater momentum change?

  A sailboat of mass m is moving with a momentum p. How would y+i 8 g tezfh4vp7;jnv0ou represent its kinetic energy in terms7zfv iht4je;pv+80 g n of these two quantities?

  If you pitch a baseball with twice the kinetic energy you gave ip fwc8fih0r(+t in the previous pitch, the wcfp+ i0h8r(fmagnitude of its momentum is

State Newton's second law in termsl/hasz+ ae* wqd8 -yvm5f9j2y of momentum.

State the law of conservation ox8w sxo *tc k3 n:)b-t(uujs0gf momentum.

  The area under the curve on a Force versus time (F vs. t) grl8pdywk o86aog( xr1)aph represents

  Which of the followino7-0 1o msx2x,fvko dhg h2y8 wlnod5)g is an accurate statement?

  A small car meshes with a large truck in a head-on collision. Which of the/pdxygu. :v2l8x - n,idq .ws9l3 wzjy following statements concerning the magnitude 2ldw:ld /njz. .pwysgq,xviy98x 3- u of the average collision force is correct?

  Two equal mass balls (one red and the other blue) are dropped fo1gx fx4mdp5, w4:qj urom the same height, and rebound off 4mg 4,dw:f5x x1qopu jthe 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 a speed of 4 m/snd8e2 bo;( hc(rw8t dz, collides with a stationary bowling ball. Twb (2zdtc;ndo 8 r(he8he Ping-Pong ball bounces 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 momenpqb29fs: t2w eu) v:ootum

  A 3.0-kg object moves to the right at 4.0;(4dx g j5oo(wne: bh6;uoe jjr):mlo m/s. It collides head-on with a 6.0-kg object moving to the left at 2.0 m/s. Whichj dw 4gool):6eo(o ;:r enjjb ;hum5x( statement is correct?

  A 100-kg football linebacker movinftp-3- s2deci v+ :4hcepsix/g at 2.0 m/s tackles head-on an 80-kg halfback runnin/s s:hp2 f4 c-t+vcexpi-i3de g
3.1 m/s. Neglecting the effects due to digging in of cleats,

  In an elastic collision, if the mom3; /d th,1mwg *tym0a7ws r-8zq uqilzentum is conserved, then which of the following statements ismtsz70wqadl18 q-yhum;w* g,/rit3z true about kinetic energy?

  When is kinetic energy consezg9qdj u9a* fb23qb;m rved?

  In a game of pool, the white cue ball hwgiq 16 k3n9blits the #5 ball and stops, while the #5 ball moves away with the same velocity as the cue ball had originally. bnwli16gq k9 3 The type of collision is

  When a light beach ball rolling with a speed of 6.b i6c2c(ih1h s)2is2nxl1 shk0 m/s collides with a heavy exercise ball at rest, the beach ball's speed aftc)hl nssi6s chi1i22( 2k b1hxer the collision will be, approximately,

  A golf ball traveling 3.0 m/s to the right collidesk 4nbqax (7o1a(k)yy c in a head-on collision with a stationary bowling ball in a friction-free environmen c((4qxaa obn ky)71ykt. 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 head-on elastically witfj 50mev9xo3kvqj:* d h an identical j e 0v*95qxm3k:jfo vdball at rest. What is the speed of the initially stopped ball after the collision?

  A very heavy object mo hpn1c81y3to xving with speed v collides head-on with a very light object at rest. The collision is elastic, and there is no friction. The heavy object barely slows down. What is the xhpy11n8tc o3speed of the light object after the collision?

  A very light object moving w /l5nj;upbs 3 fuco5u5ith speed v collides head-on with a very heavy object at reu;/5plnucuf 5j so 53bst, in a frictionless environment. The collision is almost perfectly elastic. The speed of the heavy object after the collision is

  A red ball with a velocity of +3.0 m/s collides head-on with a)bfc q,u /f7 umnb7r,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 coll bbfm,/an r ucu7q,)7fision?

  A very heavy object moving with velocity v collides head-on with a very1e 25guqjy6k5 uigu bfub2o ., light object moving with velocity -v. The collision is elastic, and there is no friction. Th2fq1bugube5i k g 2u5,6ouyj.e heavy object barely slows down. What is the speed of the light object after the collision?

  In an inelastic collision, if the momentum is conserved, then which of 17q4mg a+zsfsthe following statements is true q7mg f14 s+zsaabout kinetic energy?

  Two objects collide and stick together. K;r tk1sd hkg729dsry2inetic energy

  A 3.0-kg object moves to the right at 4.0 m/s. 4 rjtp99:-mvp , elicsIt collides in a perfectly inelastic col9rs j4pcvte,pm9:i-llision 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 obj1 nxxd +g(ihkh85i :fkect and sticks. Which object experiences the larger magnitude of momentum changxd:n5 (igxh8if h+k 1ke?

  In a game of pool, the white cue ball hits the #9 ball anb *rpgg44d0bt5e:0ao* n+nqm ky+jt i d 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 of the following statements is fiv3t) ii,t;i nalse?i;tn,i3) tvii

  Which of the following is a false str 7o(/8jumijfatement?

  Tightrope walkers walk with a lonj:xx i9*+saykg flexible rod in order to

  A plane, flying horizontally, releases a bomb, which explodestb /*m3ceke)8eo-/4gt ymyil1b a 9wx before hitting the ground. Neglecting air resistance, the center of mass of th* eke9 yctbw/mtab/-3o4e i 1m 8gl)yxe bomb fragments, just after the explosion

  Two cars collide head-on on a level fo 6tdgg),c,k1+ uxrka w0/ qldriction-free road. The collision was completely inelastic andx,l/tgadq)1d ogu0 + rk6c,wk both cars quickly came to rest during the collision. What is true about the velocity of this system's center of mass?

State Newton's second law fon**m9lpu:gp 8g j gd2vr a system of particles.

  What is the momentum of a 2000-kg truc b n6mdfma5r fpt,d(12k traveling at 35 m/s?

  A 1200-kg ferryboat op;b7te/ 1d ghis moving south at 20 m/s. What is the magnitude of its momeno ;7p bd/e1gthtum?

  A ball of mass 0.10 kg is dropped from a height of asj/rrwx6- u , oy.vs112 m. Its momentum when it strikesyvr.1w6 a r,-j/ sxuso the ground is

  Two identical 1500-kg cars are moving perpendicular to each other. One 0l2c0v g* udlmmoves with a speed of 25 m/s due north and the other moves at 15 m/s due east. Wl0ducvm0 * gl2hat is the total momentum of the system?

  A handball of mass 0.10 kf; ptg*ktieh4/4kl*u g, traveling horizontally at 30 m/s, strikes a wall and rebounds at 24 m/s. What is thek4 hlf i4 ;g**e/pktut change in the momentum of the ball?

  A 0.060-kg tennis ball, initially moving a k6+kxe/kj5q9/pbmz w t a speed of 12 m/s, is struck by a racket causing it to rebound in the opposite di mqkx6 epz/jkb9w5 /+krection at a speed of 18 m/s. What is the change in momentum of the ball?

  A 50-kg pitching mac 3+7 iijfow7k+y3xrtyhine (excluding the baseball) is placed on a frozen pond. The machine fires a 0.40-kg baseballyy3f+7x3 t +w o7ijirk 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 space capsule and is stationary ly:a r66g .gm,acfow 8when the tether line breaks. As a means of returning to the capsule he throws his6cm.r6y:wal 8 o gagf, 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 momxdrvk1y+rfye70p+x ;5zw9nigp z,*k t za : 8rentum 5.0 kgm/s approaches head-on a large object at rest. The small object bounces straight back with a momentum of magn i5 p7gvz+yzxr :0*tky1 npw,rkx9z8r;af+ed itude 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 cwq t9o 9bc. : x7 h:agq9ue*q-pvgr3jfriend (40-kg mass), who is standing still, wi7u-3pab:v 9h cegqtj*gx9wqoqr.9c :th open arms. 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,)vg :r).pnswe straight road at a speed of 6.0 m/s. It collides directly with a stopped motorcycle of mass 200 kg. What is npe)vgrs):w . the total momentum after the collision?

  A 1000-kg car traveling at 2,xl 9di *m0vw +m :vbukf+)k/ yptjv*j5 m/s runs into the rear of a stopped car that has a l jwi x+ mvbju* f/,d*t:vpv+my)k0k9mass of 1500 kg and they stick together. What is the speed of the cars after the collision?

  A railroad freight car, mass 15,000 kg, is alloweda v( 0*olov;cyfn3q2iuuwi8aafey)50 t /xm 2 to coast along a level track at a speed of 2.0 m/s. It collides and couples with a 50,000-kg secon5/0aoy3 (o2 fey;i8*n)c av2al qtu f wvxu0imd 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 negligible friction on a horizo v iug2j (l)wspx+.nd(ntal track with a speed of 10 m/s. A 70-kg stunt man drops straight down a disl)(s w+u(xji.dg nvp2tance 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 (with 7gz asg,;wf vlzzw8*8respect to the log). With what speed does the log move, with respectl w gvsz8a,8wgf* ;7zz to the shore?

  A 4.0-N force acts for 3.0 s on an object. The force suddnq /r i:rfo b+,nvn6v3vqe3( renly increases to 15 N and acts for one more second. What imqe(n,r3biq 3/:+vvrrn on6v fpulse was imparted by these forces to the object?

  A constant 9.0-N net force acts for 2.0 s on a 6.0-kg object. What is thxt7)9)il k1r vl4xqd0 oou ex0e object's change of vl k oxv t41)l9rdeu700o )qxxielocity?

  A 2000-kg car, trave6vy-htcf )nt* ling to the right at 30 m/s, collides with a brick wall and comes)v-y6 ht*ntcf to rest in 0.20 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 al 7--3 se0kecbv) wlup yqdw6gr:1e-llong the same path, and at the same speed. If the bat was in contact with gp0:s1vy)relclwb q e37 --6k ewul -dthe ball for 0.10 s, what is the magnitude of the average force the bat exerted?

  A 0.10-kg ball is dropped 4mpwe) ca8 :wvonto a table top. The speeds of the ball right before and right after hitt8va)w mwc4:eping 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 bul+m * uihu 7b7nra78ygyxr6r*b;(nk onlets, with a muzzle velocity of 750 m/s, at the rate of 300 rounds per minute. What is the average for8u(i7mgrnxa; *hy7rk ro nynbbu67 *+ce exerted on the machine gun mount?

  A fire hose is turned on the door of a burning building in order to khgg+m;o d0fv/ nock the door down. This requires a force of 1000 N. If the hose delivers 40 kg per second, whatg+v0dhomf/ ;g is the minimum velocity of the stream needed, assuming the water doesn't bounce back?

  Water runs out of a horizontal drainpipe ynmj*fj(n1 ;dat the rate of 120 kg per minute. It falls 3.20 m to the ground. Assuming the water doesn't splash up, what average foj fnndj;*my 1(rce does it exert on the ground?

  A toy rocket, of mass 0.12 kg, ac84x 3wuft8+a6,epg8 ljz vl/b)nlpqw hieves a velocity of 40 m/s after 3.0 s, when fired straight up. What average thrust forceebpx +8l jpnlafl/vz8 38quwgw4), t6 does the rocket engine exert?

  Two astronauts, of masses 60 kg and 80 kg, are initially at rest in out94lreyw7a 5 qeer space. They push each other apart. What is their separation after the light y5wae4q7 lr9eer astronaut has moved 12 m?

  A 3.0-kg object moves to the right with a speed of 2.0 m/s 4qv oxqenzgk)at8z6g:um)3.. It collides in a perfectly elastic collision with a 6.0-kg object moving to the left at xu:gtqnomv36.4z 8kzg a e)q )1.0 m/s. What is the total kinetic energy after the collision?

  A 0.10-kg object with a velocy-px(a yvi3aeef. p-pz62o0 e ity of 0.20 m/s in the +x direction makes a head-on elastic collision with a 0-(2p0- e.azyvfaoexy 6pi3 ep.15 kg object initially at rest. What is the final velocity of the 0.10-kg object after collision?

  A 10.0-g bullet moving at 300 m/s is fw 5rysab1g . z9;gd;tqired into a 1.00-kg block at rest. The bullet emerges (the bullet does not get embedded in the block) with hal9q15d arbs; tygzw; .gf of its original speed. What is the velocity of the block right after the collision?

  A proton, of mass m, at rest, is struck headqk jz/ku+l(z,5vvsh aqda /9a1c/:v y-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 will the alpha-pa/u hk,91slq5adcy( v+ zk/z/v:avqajrticle 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 stationary ball of maf(/lnjg1zc-vmc 0 a)a vee.9vss 100 g. The collision is elastic. What is-9ej0ev c aa/cf. nl( 1m)gvvz the speed of each ball immediately after the collision?

A ball of mass 400 g moving toward the eamb(.tw 3/n*bx9kcx 1wswl +sw st with a speed of 3.70 m/s collides head-on with a 200 g ball sitting at rest. The collision swmkxw ws b9n(+cbw l3t *1./xis 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 j-.qkwmv:yfvnr ;w8db600 +ed)xg lmspeed of 5.0 m/s. It collides head-on with a 3.0 kg mass at rest. If the collision is perfectly inelastic, what is ;w+)bq - y efdw m:v6r8jdxn. vgm0l0kthe speed of the masses after the collision?

  A 2.0-kg mass moving to the east at a speed of 4.0 m/ 9aebocc x p1,2nli;t(s collides head-on in a perfectly inelastic collision with a stationary t2ax (b,1 ocic;p9nle 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 wagod-y o 2h*f6 u m1ssun;+pl3gmgn, who's mass is 2m. The bumpers lock together in this head-on inelastic collision. What fraction of the initial kinetic energy is lost i2d6*;+hol u -myssp ug 3gm1nfn this collision?

A 15-g bullet traveling 213 m/s in a vertical direction buries itself in a 2.siqz 9:7n.wyvurz5sd1.xms0 4-kg block o0mzuvzx9r7s y .i.sqws d :15nf wood a rest directly above it. As 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 traveling at 90.0 km/h east collides with a 3000-kg car travb;cipf .20u f-pruct2 eling 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 colpfu- 0pt2 c fr.i;2buclision?

  A 1500-kg car traveling at 90.0 km/h east collides with a 30f2 4;i5a- 7 3buvknw mv6vnung00-kg car traveling at 60.0 km/h south. The two cars stick together n 46v wuunb7af-k5;v vinmg32after the collision. (See Fig. 7-1.) What is the direction of motion of the cars after collision?

  Two objects move on a level frictionless surfad3y/o wz4kr i8ce. 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 collii zwy/ dkor438sion?

  A small bomb, of mass 10 kg, is moving toward the North with a velocity of 4 5 -dmj6hvvf/g.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 moving east with a speed of 10 m/s; and a third ff /d6h vv-mj5gragment 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 oriq)q:yxn3wtspg ;: :ovgin, and a 10.0-kg mass sits at x = + 21.0 m. Where is the center of mass on the x-axipg;v):nq3yqs : to:x ws?

  The center of mass of a two-particle system is at the orig4dfocu(4;o+uvvuk v / in. One particle is located at (3.0 m, 0) and has a mass of 2.0 kg. What is the location of the second mass of(;ouu foc/4v kud v4+v 3.0 kg?

  Three masses are positioned as follows: 2.0 kg at (0, 0), 2.0 kg at gpi;8su5mk+fvt1rp 8;pylg-k.a 6c c (2.0, 0), and 4.0 kg at (2.0, 1.0). Determine the coordinates of the i ccpt85 kygg;p 6l+vk fp.8u-1m;arscenter of mass.

  Three masses, 1.0 kg, 2.0 kg, and 3.0 v.(2)wjj wbyz05zxptkg, are located at (0, 0), (1.0 m, 1.0 m), and (2.0 m, -2.0 m), respectively. What is the ty xzpj.b 0z5j 2wwv()location of the center of mass of the system?

  A 3.0-kg mass is positioned at (0, 8.0), and a 1.0-kg ma5,gu7ihsy; aa8 a3tl+0 hjfdm7-mmh pss is positioned at (12, 0). What are the coordinates of a 4.0-kg mass which will result in the center of mah738uy,a5 saj aflh-+0hmmgm;d7i p tss 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 whole legu-;r2yx)5; ;sctheuuwys(be cs1u2g including the foot when the leg is stretrsbyc-x;s ;utc;(w e 1h)2uusu 52geyched straight out. Assume the person is 1.60 m tall.