What is the SI unit of momentlzcs6.*i x6a74w h.a;blpk(p g.lbprum?

  When a cannon fires a cannonball, the cannon will recoil koj0f 6x3c(m g/qfp3dbackward because the

  A freight car moves alkuo h.rpc. :i2ong a frictionless level railroad track at constant speed. The o:u2.c .phk ircar is 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 off a sled while sledding on frictionless ice. What has gt(ku8 )pqd;pp );tqkp(s 8gduens to the velocity of the sled?

  A rubber ball and a lump of putty have equal m46g8 z0vl*tm lnob y6:6nd krpass. They are thrown with equal speed against a wall. The ball bounces back with nearly the same speed with whi6p6tnld*8nyolbm z46k v:rg0 ch it hit. The putty sticks to the wall. Which objects experiences the greater momentum change?

  A sailboat of mass m i mp.w(eeq+y q4+t /hses moving with a momentum p. How would you represent its kiyw.ee+hqs/+p ( 4tme qnetic energy in terms of these two quantities?

  If you pitch a baseball with twi7c tafi 1 u*g/v6vg3u 8w2zd9z7nrcf tce the kinetic energy you gave it in the previous pitch, the magnigrvz *f uc36w8n2/cfta7idgu t9z17v tude of its momentum is

State Newton's second law in terms of momentum.f w3(1x:v7gnq,nhx wn

State the law of conservation v.:6oyq qqk,iof momentum.

  The area under the curve on a Force versus time (F vs. t) graph r2k cpjz f:* b3dwi*w78i*gevcepresents

  Which of the following is an accura 9k me)muh8hf2te statement?

  A small car meshes with a large truck in a head-on collisioko/djod d2e,1 :qq-coy er(,jn. Which of the following statements concerning the magnitude of(yqd eo2 dc: e/k,jqod-1jr ,o the average collision force is correct?

  Two equal mass balls (one red and the other blue) are dcmjbu (d:a8 ) su)lbhh ,3,hwhropped 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 impuls3lahhhs8 c: dmu,) ,b ujw(hb)e during its collision with the floor?

  A Ping-Pong ball moving east at a speed of 4 m/s, collides with a stationaryrt,vf/ofc /l ul3f9n hk-m)g+ bowling ball. The Ping-Pong ball bounces back to the west, and the bowling ball moves very slowly to the east. Which object experiencesokr, fl/ gf) nvhum-c f+t9/3l the greater magnitude impulse during the collision?

  Two objects collide and bounce of8y 0rwpw4xpz wj5h+ :bf each other. Linear momentum

  A 3.0-kg object moveslr8y+xazjd; * to the right at 4.0 m/s. It collides head-on with a 6.0-kg object moving to thed+y*rxz8 l;aj left at 2.0 m/s. Which statement is correct?

  A 100-kg football linebacker moving at 2.0 e 547a uc/ectzm/s tackles head-on an 80-kg halfback runnicac 4 7zut5/eeng
3.1 m/s. Neglecting the effects due to digging in of cleats,

  In an elastic collision, if the momentum is conserved, then which hud/,);cf.7 xcpj et bof the following statements ie p, c7 u;hdfxtbc.)/js true about kinetic energy?

  When is kinetic enerocnbnnt2 -.bzo:r4f7 gy conserved?

  In a game of pool, the white cue ball hits the #5 ball and stop p u )dpz)k6g+g::t8it2btzpks, while the #5 ball moves away with the same velotziptg:zu 68)kb p: p )t+2kgdcity as the cue ball had originally. The type of collision is

  When a light beach ballziyv1q l-jbak)-g lx fl+o21 yned.)7 rolling with a speed of 6.0 m/s collides with a heavy exercise ball at rest, the beach ball's speed glx jiky-2b)d) ly 1vfa17- qole. n+zafter the collision will be, approximately,

  A golf ball traveling 3.0 m/s to the rightn *:;wzj 1nutk; v3)y ihwv-cw collides in a 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 ball immedia3*ky z;nvwuwn :;jvit1)ch - wtely after the collision is

  A rubber ball with a speed of 5.0 m/s h-u5xju +/ctcxhlzgj8*.0 j qcollides head-on elastically with an identical ball at rest. What is the speed of the initially stopped ball aftecju /05jzgch+ht.x- uq j8*lx r the collision?

  A very heavy object moving with speed v collides head-on with aah g+l,x74e wjhkk k(a(jyo/ ; very light object at kxaa(k7/l4h g j(+wej ohyk ;,rest. The collision 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 wiiwnx7-1 jojviwy/2g 7 th 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 collision 7wi -jxw2gny7j/ 1o viis

  A red ball with a velocity of +l 4t;m.jxiaxll6d bk,8:) nuc3.0 m/s collides head-on with a yellow ball of equal mass moving with a velocity of -2.0 m/s. What t6:4kinudmxbx.,l; c8 l j)lais the velocity of the yellow ball after the collision?

  A very heavy object moving with velocity v m roao9wu6r x/b(22rkcollides head-on with a very light object moving with velocity rw26bor/a (9u okmrx2 -v. The collision is elastic, and there is no friction. The heavy object barely slows down. What is the speed of the light object after the collision?

  In an inelastic collision, if the momentufg55frn czye.afy2.qe95v 1 jm is conserved, then which of the following statement1 y .9e5vr . 5fezf2qyj5ncafgs is true about kinetic energy?

  Two objects collide and stic4hola( riz7 4- ql(*vs s7fjwbk together. Kinetic energy

  A 3.0-kg object moves to uzk ce8d,zfwp*q6 (e; the right at 4.0 m/s. It collides in a perfectly inelastic collision*q;6u, c8zfe epk z(dw 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+j .agatudxy+ dc;0rxt:m;r6. Which object experiences the larger magnitude o d+mjx6.xt acr+y;;ug: adt0 rf momentum change?

  In a game of pool, the whi6h pu 1t,jzghk 9xb*,fte cue ball 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 of the follo8tfty84 1t6t7h( p r3 e0zph)xhnexzt wing statements is falsettxhfh1txp3(ze) 6yzp0 7th8e t48rn?

  Which of the following is ,c42b,bjqzyt a false statement?

  Tightrope walkers walk with a long fle+bxeh 3zm )8qtxible rod in order to

  A plane, flying horizontally, relea92c0 +mp,qbp l:rgw jvses a bomb, which explodes before hitting the ground. Neglecting air resistance, the center of mass ovr,jw2p 90lpmbg : qc+f the bomb fragments, just after the explosion

  Two cars collide head-on on a level friction-free road. The collisios/q.njpw3 29 gj7kfp xn was completely inelastic and both cars quickly came to rest during the collision. What is true about the velocity of this system's center of /7nswf9 qxg2jj3.pkpmass?

State Newton's secondq1f ,lzjtr(;s7rmfa l-mv)vb*)( ojy law for a system of particles.

  What is the momentum of a 2000-kg truck traveling at 35 m/sv(tj/qor*;d va+g9gpdg k +tz- ck2w 9?

  A 1200-kg ferryboat is moving south at 20 m/s. What is the magnitude of its m sw7c, j9q/e ley7x-v:a o3s+xv4hb/ ukcsy,t om s,,cyavh+ ewbxs9ct-xe7:os3qy4u7/ / vjl kentum?

  A ball of mass 0.10 kg is dr /- jolokwri4+d9r hg94og5 ziopped from a height of 12 m. Its momentum when it strikes the gr rzoii+od45glr4 h9wk /oj-9 gound is

  Two identical 1500-kg cars are moving perpev8,ob3 ujt ejsju))y )ndicular to each other. One moves with a speed of 25 m/s due north and the other moves at 15 m/s dsy)jejjb u8,uvot) 3)ue east. What is the total momentum of the system?

  A handball of mass 0.10w(u i183 ce zxuyjne:0 kg, traveling horizontally at 30 m/s, strikes a wall and rebounds at 24 m/s. What is the change in the mome0(:38uneey 1uxc zwjintum of the ball?

  A 0.060-kg tennis ball, initmo 9)sxkf ok 32 mamtj2n6e0t,ially moving 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/tokxmm 96st03 2), km ajnf2oes. What is the change in momentum of the ball?

  A 50-kg pitching machine (excluding the baseball) is pl jygr4elwgp-y g.l97:*(x zjlaced 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 machine? (Assume . ylly-j gze*:9jr gg (4wlpx7negligible friction.)

  A 70-kg astronaut is space-walking outside the space capnuav*fyd:5 b-7kgf xt 0u zt9ny76un,sule 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 14 m/s away from the capsule. At what speed does the astrona-ak, fynu *:uubtngn 6zdf5x 079t 7vyut move toward the capsule?

  A small object with momentum 5.0 kgm/s a c,ke.p2cw v*2fekh86a pacm7pproaches head-on a large object at rest. The small object bounces straight back with a momentum of magnitude 4.0 kgm/s. We8*7c. p ,cwf2me6cavpkhka2 hat 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 u8 bn lh-. vm38bvhlq3(40-kg mass), who is standing still, with open arms. As you collide, while holding each other, with what spbbllnuvhh8 3v8-3. qmeed do you both move off together?

  A car of mass 1000 kg moves to the right along a level, strain.ugb ,9if 2yyj mf.o1a5.tro 7vyz x2ght road at a speed of 6.0 m/s. It collides directly with a stopped motorcycle of mass 200 kg. What is the to,i52 9r 7yxnyaogt1ov.fbju my.2f.ztal momentum after the collision?

  A 1000-kg car traveling at 25 m/s runs into the rer;iw9v e (e ukkq6nyga(u* l /nq7+ug9ar of a stopped car that has a mass of 1 ev6l*an /e n(uk (ikgurwu9gy9 +qq7;500 kg and they stick together. What is the speed of the cars after the collision?

  A railroad freight car, mass 15,000 kg, is allowxfiy35w lg, a.upyu.) ed to coast along a level track at a speed of 2.0 m/s. It collides and couples with a 50,000-kg second car, initially at res ,uwl3ygfi) py ax.u5.t and with brakes released. What is the speed of the two cars after coupling?

  A railroad car, of mass 200 kg, rolls with negligible frict 7 2up jkhamf33+ emyhj9g.j/ f4utp,rsv7s 2hion 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 lama+j khs2v7 y f4rju2f hjh7. /3,es39pmgput nds 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 ra1r8m c6kj3cttte of 0.80 m/s (with respect to the log). With what speed does the log move, 8 ct1cmkjtr36 with respect to the shore?

  A 4.0-N force acts for 3.0 s on an object. The force 1i su3mj8e7xhsuddenly increases to 15 N and acts for one more second. What impulse was impartme87u 3js xih1ed by these forces to the object?

  A constant 9.0-N net force acts for 2.0 s on a 6.0-84r .()zo ofn.glg0 he f4xlfkkg object. What is the object's change of4 ogefgx8k fnh..(lr0floz4 ) velocity?

  A 2000-kg car, traveling to the right at 30 m/s,sfg9n7h +zl9 qom5 wf.e2zc2b collides with a brick wall and comes to rest in 0.20 s. What is the average force the car exerts on the w2hf g2enw 5 l9ozm9fc.7 qzs+ball?

  A 2.0-kg softball is pitched to you at 20 m/s. You hit the ball br;h*p-0 u .w3a(yug; guomfjback along the same path, and at the same speed. If the bat was in contact with the ball for 0.10 s, what is the ma b a*(uj mh uu;fpgy.0rwog3;-gnitude of the average force the bat exerted?

  A 0.10-kg ball is dropped onto a table top. The speeds ot(tto 2lr)tj:i*7(9ae 0w 7z*iirx2l tnauw af the ball right before and right after 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, wtw tlna *i7wj r90rlexi 2)u*tiz(7ao(tt: a2hat 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,ktm*(ejzid el p04-w 0 with a muzzle velocity of 750 m/s, at the rate of 300 rounds per minute. What is the average forzlem0pe -4i*( 0jw dktce exerted on the machine gun mount?

  A fire hose is turned on the door of a burning 8m2+ieq )gqq.i:afgx4z v kzrs fa474building in order to knock the door down. This requires a force of 1000 N. If the hose de zgv8mf a2)a +iisq 44zexr:fq7kg.q4 livers 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 lz))8j0ke2tl9 c4lv ks1 fjpcper minute. It falls 3.20 m to the ground. Assuming the water doesn't splash up, what average tl0klclj2)8 v9ps)czfj 1k4 eforce does it exert on the ground?

  A toy rocket, of mass 0.12 kg, achieves a velocity of 4+6by)xk bat q30 m/s after 3.0 s, when fired straight up. What average thrust force doe)b3ybxk6ta + qs the rocket engine exert?

  Two astronauts, of masses 60 kg and 80 kg, are initially at rcsler0.9v ouk3+p b5nest in outer space. They pushr.cbl eu o 3ps+n9v5k0 each other apart. What is their separation after the lighter astronaut has moved 12 m?

  A 3.0-kg object moves to the rightvg-lf8j:i35dqbfr4*c / ghd:g *ahfo with a speed of 2.0 m/s. It collides in a perfectly elastic collision with a 6.0-kg object moving to the j* go: rh glb5:4ihc*df-av3 /gdf8qfleft at 1.0 m/s. What is the total kinetic energy after the collision?

  A 0.10-kg object with a velocity ofeuxf: 9du te/ *6-vs)y2+zbiz u7vidu 0.20 m/s in the +x direction makes a head-on elastic collision with a 0.15 kg object initially at redzz:+ e f*2 db7u-uui6sveit) y9 /uxvst. What is 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-kgf1wx;vms 9 od) leuv/1 block at rest. The bullet emerges (the bullet does not get embedded in the block) with halfu)wml9/1s v xefo 1;vd of its original speed. What is the velocity of the block right after the collision?

  A proton, of mass m, at rest, is struck ht + ugs9;zm*xyead-on by an alpha-particle (which consists of 2 protons and 2 neutrons) moving at speed v. If the collision is completely elastic, what *xmgz+;9ytus 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-on withon q8)tpup p 5jmcpn9fx *2;)f a stationary ball of mass 100 g. The collision is elastic. What is the speed of each ball immediateqjpn)9pum 8 fp5 *otxnpc;) 2fly after the collision?

A ball of mass 400 g moving toward the east with a spe .zk6: q3dogb) dz-pxzed of 3.70 m/s collides head-on with a 200 g ball sitting at rest. The collision zdzo-dz:.bx pgqk6)3is 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 collinv be ts uyb65fy)*vz ;-3eg0ndes head-on with a 3.0 kg mass at rest. If the 5e-n 6ygf)btuybs3v;* 0 nzevcollision is perfectly inelastic, what is the speed of the masses after the collision?

  A 2.0-kg mass moving to the east at a speed of 4.0 m/s colf -0wbp l4-yj )seccpe;h b (bgo5:a3glides head-on in a perfectly inelastic collision with a stationary 2.0-kg mass. How much kinetic energg p :3p()cbgob5 b4a;fh-jy-ele wc0sy is lost during this collision?

  A car of mass m, traveling with a velocity v, strikevr ((u, xl.*x1 jphbluj8snj0s a parked station wagon, who's mass jb08prsl,n (uu1.lxh v(j*xjis 2m. The bumpers lock together in this head-on inelastic collision. What fraction of the initial kinetic energy is lost in this collision?

A 15-g bullet traveling 213 m/s in a vertical direction buries i6tw tbj+b7kxb)lah+*tself in a 2.4-kg block of wood a rest directly above it. As a result, the bullet/block com)x6wkab hl +bjt*b7+t bination 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 travelv;y (zbblo/i wq j/3,sss, bn7ing at 90.0 km/h east collides with a 3000-kg car traveling at 60.0 km/h south. The two cars stick together afte(v3q;/zs,sjibs bb 7l wy/n o,r 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 collid i/whqcuz.x n i+6.:cdes 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 wc/uz c+din:q. 6ix.hdirection of motion of the cars after collision?

  Two objects move on a level frictionless sg)ka 1koa83dogt )v md.(7out urface. 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 m )7ogo(vugk )d 3tadt.8kma 1oagnitude of their combined momentum after the collision?

  A small bomb, of mass 10 kg, is moving toward the North with0y-l 7 eecn7bn a velocity 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 moving east with a speed of 10 m/s; e77cy- n0bnle 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 = + e 8 a-q:(x8 :mseqqysy21.0 m. Where is the::s8( mae qyxqy -s8eq center of mass on the x-axis?

  The center of mass of a two-particle system if okx7yizl*9q-3r u/ os at the origin. One particle is located at (3.0 m, 0) and has a mass of 2.0 kg. What is the9x7 r-kuq3*zfl/iyoo location of the second mass of 3.0 kg?

  Three masses are positioned as follows: 2.0 kg at (0, 0), 2.0 kg y6) mer k6l(12 pzpsycat (2.0, 0), and 4.0 kg at6z r(p)yy2 cskmp6l1e (2.0, 1.0). Determine the coordinates of the center of mass.

  Three masses, 1.0 kg, 2.0 kg, ando3k abz ,crz9 a5zy.lbg 17+4fro0myb 3.0 kg, are located at (0, 0), (1.0 m, 1.0 m), and (2.0 m, -2.0 m), az4ba5c b+z19rl o 30ykbrz7. mfyog,respectively. What is the location of the center of mass of the system?

  A 3.0-kg mass is positioned at (0, 8.0), +70y ras0q.zxz wz:emff0j: a 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 f 0s.rwaya qe:zzm:+j 7xf00z mass of the system of three masses being located at the origin, (0, 0)?

  Use Table 7-1 to calculate wgzh/b /-z1fsn+w dy.the position of the CM of a whole leg including the foot whf/ /s.-g w wy+bn1zzdhen the leg is stretched straight out. Assume the person is 1.60 m tall.