What is the SI unit of-6,an2r) pl w:yc gdfb momentum?

  When a cannon fires a cannonbal2imc87 w(mc bll, the cannon will recoil backward because the

  A freight car moves along a frictioncf9u5-f )1e-dahk m vyless level railroad 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)5e- 9fuamd ky1ch fv- of the car?

  A child falls sideways off a sled while sledding 1r,ounot)*yvw; (amy on frictionless ice. What happens t,mn;r uvy*o otay)w1(o the velocity of the sled?

  A rubber ball and a lump of putty have equal mass. They are thrown jj :9s4glmw*vqfn ) ek*5kbd6with equal speed against a w9n*v56kjfslkgw bdje* 4m)q:all. The ball bounces back with nearly the same speed with which it hit. The putty sticks to the wall. Which objects experiences the greater momentum change?

  A sailboat of mass m is moving with a momentum p. Howc6 21f.kguah4+zt oeo/8 thj x would you represent its kinetic energy in terms of 8 aho/gue 1f6tc+tj4 xzoh.k2 these two quantities?

  If you pitch a baseball with twice the kinetic energy you gave it in the previoyuk575a p-dezy4g ac ;gms9n :us pitch, the magnitude of its momyak7g z9cn45-y p:d ags5um;eentum is

State Newton's second law in terms of momv(( ,srsh jv6gentum.

State the law of conservation u1/v(a, whu lyof momentum.

  The area under the curve on a Force versus tii njy sx(-yog;06f uq2me (F vs. t) graph represents

  Which of the following is3)nc of1n,i os(bsv4n j53uzd an accurate statement?

  A small car meshes with a large truck in a hea2pyr6;h f pvjus199g nd-on collision. Which of the following statements concerning the magnitude vrus69ng p 12j;9yph fof the average collision force is correct?

  Two equal mass balls (one red and the other blue) are dropped gg hytag.5g( oyo5+i9from 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 coloa95gh g yog(5+.g iytlision with the floor?

  A Ping-Pong ball moving east at a saox65dj0qy d36 vm6iypeed of 4 m/s, collides with a stationary bowling ball. The 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 collisioyx6v 6o qd5ja30yidm 6n?

  Two objects collide and bounce off each other. Linear r w;7-y8r7i lxcnwp8 zmomentum

  A 3.0-kg object moves to th ;wnb*yb t/c hio/ m79yyd2ov+1hu c6fe right at 4.0 m/s. It collides head-on with a 6.0-kg object moving/ tfn y1b y+ocycuhv*d6 o7; 9b2/miwh to the left at 2.0 m/s. Which statement is correct?

  A 100-kg football linebacker moving at 2.0 m/s tackles hx6hoelyvn10 f 40:4gm llds*sh-xw6 7zphu,k ead-on an 80-kg halfback runningh4 dlng-h0xyllupf4w716k s :em6 x ov shz,*0
3.1 m/s. Neglecting the effects due to digging in of cleats,

  In an elastic collision, if the momentum is slj l9 8ttn;:c3,x9zm3j dxpaconserved, then which of the following stlt;:8amt3jzpsxxj lcn 993,datements is true about kinetic energy?

  When is kinetic energy k8(4iqj-q e l +6z;cwkw n9hoeconserved?

  In a game of pool, the white cue ballv)kag9(rbp-lt f j3y.*g suk9 hits the #5 ball and stops, while the #5 ball movrl -*.vujs akpg9 t kg3)y9b(fes away with the same velocity as the cue ball had originally. The type of collision is

  When a light beach ball ro6 xgcp 9 q*myg1:yg 0o.od-hnrlling with a speed of 6.0 m/s collides with a heavy exeoy .hmgp o*d-qy6 x: 1gg9c0nrrcise ball at rest, the beach ball's speed after the collision will be, approximately,

  A golf ball traveling 3.0 m/s to the right collides in a head-on colli pxceq;dum(/wl3 -/xf sion with a stationary bowling ba(pfw ;/ /exucql-3xdm ll in a friction-free environment. 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 elastixof2q;q-v, nrk:e is7cally with an identical ball at rest. What is the speed of the initially stopped ball2 fkiqo:-s; 7 ,qenrxv after the collision?

  A very heavy object moving with speed v collides head-on with a very light oi )f 51v4ajpj.,5pv bavidq3kbject at rest. The collision is elastic, and there is no friction. The heavy object barely slows down. Whqjb)ia5p5 vaj .1dp,i 3v4 kvfat is the speed of the light object after the collision?

  A very light object moving with speq 9t*,s3afvr ped 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 cs 3*,qprtfa9v ollision is

  A red ball with a velocity of +3.0 m/s collides.ro+hx2z s: fy head-on with a yellow ball of equal mass moving with a velocity of -2.0 m/s. What is the velo2s. xfrzoh+:ycity of the yellow ball after the collision?

  A very heavy object moving with velocity v collides head+ (hqpa1+byozeueh.9 -on with a very light object moving with velocity -v. The collision is elastic, and there is no fricti.eqp uzh+oya+ h(e 9b1on. The heavy object barely slows down. What is the speed of the light object after the collision?

  In an inelastic collision, if the momentum is conserr epd k:bjt+-7ved, then which of the following statements is true about kinet pj7rb:ekd+ -tic energy?

  Two objects collide and stick together. Kinetic enerk2n87-,x uryzkrag fa ;shl4 7gy

  A 3.0-kg object moves to the righ,o :f44n cipfyt at 4.0 m/s. It collides in a perfectly inelastic cn4y of:c,if4 pollision 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 ao*g2r;8 yzh adx)vqni 1j4iv- large object and sticks. Which object experiences the largeahv 2v;8j4 irgyid-)*no1 xq zr magnitude of momentum change?

  In a game of pool, the wzypvgr5.c* -/wb gd 8white 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 fol+r:tptyk4 4 lulowing statements is false?l4+ r4t ktpuy:

  Which of the following is a false stkv. qdk2y/o(t atement?

  Tightrope walkers walk with a long flexible rod in ord;3a/j3t mrkadt:zrd 0er to

  A plane, flying horizontally, . dqxm 0w;hdij favmv 072(ay4releases a bomb, which explodes before hitting the grou f2ivdwh;d7a(mymqj. 4 vx a00nd. Neglecting air resistance, the center of mass of the bomb fragments, just after the explosion

  Two cars collide head-on on a level friction-free road. Thev l4mjo t0m(r* 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 of ml jv(mr0 *4mtoass?

State Newton's second law for a r6c(.cwgw7z q /cn(p/+quhke system of particles.

  What is the momentum of a 2000-kg t)0o4,wo5kkmmt6f n0 /f sxlfcruck traveling at 35 m/s?

  A 1200-kg ferryboat ;bm9vldpc ;50h /d wvtis moving south at 20 m/s. What is the magnitude of its momd/lcm;wt5b ;d9pv0 hv entum?

  A ball of mass 0.10 kg is dropped from a height of 12 m. Its momentum when it sh,h x*/poy)gp -pxyxe 6k(/wp trikes the g,*h /kpx-p py/gwx 6)poh(xeyround is

  Two identical 1500-kg cars are moving perpendicular fr3 wv..ye-yzgd/ lbic) th72 to each other. One moves with a speed of 25 m/s due north and the ./g-vyr y73 w.2tib)h cdzfle other moves at 15 m/s due east. What is the total momentum of the system?

  A handball of mass 0.10 kg, traveling4;**i n2rq xvsu8qae c horizontally at 30 m/s, strikes a wall and rebounds at 24 m/s. What is the change i vu4a*xr8 e in2s*;cqqn the momentum of the ball?

  A 0.060-kg tennis ball, initially moving at a speed of 12 m/s, is st./subz 9otm/g y 7(pemruck by a racket causing it to rebound in the opposite direction at a speed of 18 m/s. What is the change in momentum by es9umtm. /( zp7/goof the ball?

  A 50-kg pitching machine (excluding the baseball) is placed on a frozenovm 95 zp66yoc pond. The machine fires a 0.40-k p6ocy5m69o vzg baseball 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 c( pd 1 cgg:lqieq-8v5xu84xtyapsule 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 astronaut185 x-i:cxtld y u8(4vgqep gq move toward the capsule?

  A small object with momentum 5.0 kgm/s approaches head-on a b6 7:-jathwcmp+oya 3 s-)tcq large object at rest. The small object bounces straight back with a momentum of magnitude 4.0 kgm/s. What is the mag:ja3)c mtto 7bash-pw qcy+6 -nitude of the large object's momentum change?

  You (50-kg mass) skate on ice at 4.0 m/s to greet your friend (40-kgg*( dejmob z+,uf y7u) mass), who is standing still, with open arms. As you collide, while hold(zufejy g m+)7obu,d *ing each other, with what speed do you both move off together?

  A car of mass 1000 kg moves to the right along a level, straight ro (bhmltxx;;6 iad at a speed of 6.0 m/s. It collides directly with a stopped motorcycle olxhb6( m xt;;if mass 200 kg. What is the total momentum after the collision?

  A 1000-kg car traveling at 252lq f mo50deohf-u:cj-y) nz 1 m/s runs into the rear of a stopped car that has a mass qh):1f2cl0my- j ndezu oo5-fof 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 allowed to coast a9 vcobs wp3z79long a level track at a speed b9zwv93s 7 opcof 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 the two cars after coupling?

  A railroad car, of mass 200 kg, rolls wi.ij4tmzaq4zbam(2o l 6.7 j cyth negligible friction on a horizontal track with a speed of 10 m/s. A 70-kg stunt man d 4cay6 jz7. oq( t.ilmmj4ba2zrops straight 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 ondbd)6u7y45s t ksk d848p oaqb a 100-kg log at the rate of 0.80 m/s (with respect to the log). With what speed does the log move, with respect to the shored6dtb48 d sk)pobu4 yq8a5 s7k?

  A 4.0-N force acts for 3.0 s on an object. The force7ty*kz9ot a,p 9uz4je suddenly increases to 15 N and acts for onzo,a t4jkt*z y99 7puee 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 a 6.0-kg object)iq *aqq)x7es8m c2ru. What is the object's c*ia7) eqcs8u x2 rqmq)hange of velocity?

  A 2000-kg car, traveling to the right at 30 m/s, collides.flix4ac ;fef lvbs./ v(y6 y6 with a brick wall and comes (4v6lxifce6; y.s/. lf abfvy to rest in 0.20 s. What is the average force the car exerts on the wall?

  A 2.0-kg softball is pitchedp;1d p288ea ba9swg(an+iyi z to you at 20 m/s. You hit the ball back along the same path, and at the same speed. If the bat was in asb98(8y2eg adawp; pz1+ni icontact 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 tablgd 0l-e3if2 zytby2 l- rm7pi9e top. The speeds of 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, what is the magnitude of the av2zf0- e piygmdty27ibl -r l93erage force exerted on the ball by the table top?

  A machine gun, of mass 35.0 kg, fires 50.0-gram bullets,1j/ k+d m5zay 74 +tgj-frbucr with a muzzle velocity of 750 m/s, at the rate of 300 rounds per minute. What is the average force exerted on mu1frk7a5dbz/rct- + 4+yjjg the machine gun mount?

  A fire hose is turned ona1pjdf 2;*)f7 r9i.thhsob h ht3te8 x the door of a burning building in order to knock the door down. This requires a force of 1000 N. If the hose delivers 40 kg per second, whisah82 9)3tfp1 bhfrod xh;*h7te j.tat is the minimum velocity of the stream needed, assuming the water doesn't bounce back?

  Water runs out of a horij25hnt s5l ie-q, jtz7 n :a3grk;2vhgzontal drainpipe at the rate of 120 kg per minute. It falls 3.20 m to the ground. Assuming the water dos ,jn 2:ia-tvr53zj h57et2gn; qklhg esn'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/sfb *en(-x0 l2jdl/ byl after 3.0 s, when fired straight 0bn2lb-lljdx(*f /y eup. What average thrust force does the rocket engine exert?

  Two astronauts, of mas)/yp,q e ,k(d6hyym- k *fxu9:ibabkwses 60 kg and 80 kg, are initially at rest in outer space. They push each other apart. What is their separation after the ligq:(e y*b,/khauy x6ki k, p9 )fd-bymwhter astronaut has moved 12 m?

  A 3.0-kg object moves to the right with a speed of 2.0 m/s. I43 dlte v+k3irt collides in a perfectly elastic collision with a 6.0-kg object moving to the+ivke4 tlr d33 left at 1.0 m/s. What is the total kinetic energy after the collision?

  A 0.10-kg object with gvp/lm8.7, eemqgp7 ja velocity of 0.20 m/s in the +x direction makes a head-on elastic collision with a 0.15 kg 77/ .pjlvg, gp8emmqeobject 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 fired into a 1.00-ceqk,):f g ag3kg 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 after the collis,kcg e3)afqg :ion?

  A proton, of mass m, aj at -3wes(5/p gla9vlt rest, 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 saa-v5s9g(/3lel p w jtpeed 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 1gcu+k7fx(wk*6 ebh5 pay.kx head-on with a stationary ball of mass 100 g. The collision is elaskg5ax e( pxwfh1+bcu*kk 76 .ytic. What is the speed of each ball immediately after the collision?

A ball of mass 400 g moving toward the east with;+:bjtun,g av a speed of 3.70 m/s collides head-on witb,vu+t;ag : njh a 200 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 5.0 m/s. It collins xrmm9fy(-pq8x6 -z des head-on with a 3.0 kg mass at rest. If tqs -x8m(6f-y 9nrm pxzhe collision 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 collides head-on in aw whk 0fw: v/o3l1bm0o perfectly inelastic collision with a stationary 2.0-kg mass. How much kinetic energy is lost during this collisiovk0h /1obwwlw 03 of:mn?

  A car of mass m, traveling with a velocity vz)h+ 49)qxl rvo bzm9wv,x v*3ypr3h z, strikes a parked station wagon, who's mass is hh by* ) 3,4pz9xov+ 9r3xvrqzz v)wlm2m. 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 its6w1l uln4,j xmelf in a 2.4-kg block of wood a rest directly6w 1,xu4ljn lm 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 90.09y pwt6 jc1ww. km/h east collides with a 3000-kg car traveling at 60.0 km/.tcwp w1w9 y6jh 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 a 3000-kg fyyvjx3an+ c a1, t7( r-/ggmucar traveling at 60.0 km/h south. The two cars stick together,ag fuj /-37mtyaxgc1(vr n y+ 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.izfputw4-e,/kb- oe: hu 9-bu.rax:r Object A moves east with a momentum of 24 kgm/s. Object B moves north with momentum 10 kgm/s. They make a u-:ob.ab, efp rt-4w :- /uuke9hxirzperfectly inelastic collision. What is the magnitude of their combined momentum after the collision?

  A small bomb, of mass 10 kg, is moving toward1 ehn.dr;4gr o the North with a velocity of 4.0 m/s. It explodes into three fragments: a 5.0-kg fragment moving west with ge h;.dr no14ra 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 is the velocity of the third fragment? (Neglect air friction.)

  A 4.00-kg mass sits aas,36+xt xqu d/5rjn3r/uhx-zqco u:*zqg *c t the origin, and a 10.0-kg mass sits at x = + 21.0 m. Where is the center of mass *xc5 a-rxxtgo /u36nzd+*qs huuqr ,3qzj: c/on the x-axis?

  The center of mass of a two-particle system is at the o eo2riu0x4 rc5rigin. One particle is located at (3.0 m, 0) and has a mass of 2.0 kg. What is the locor5 0xec42uri ation of the second mass of 3.0 kg?

  Three masses are positioned a8)zsr xov 9t1ks follows: 2.0 kg at (0, 0), 2.0 kg at (2.0, 0), and 4.0 kg at (2.0, 1.0). Determine the coordinates ofrk8 tvzx1o s9) the center of mass.

  Three masses, 1.0 kg, 2.0 kg, anoj 8x8s fbt76vpqk15 rd 3.0 kg, are located at (0, 0), (1.0 m, 1.0 m), and (2.0 m, -2.0 m), respectively. What is thpr678vqt obs58 kjf1 xe location of the center of mass of the system?

  A 3.0-kg mass is positioned at (0, 8.0)ns,h 8+- ed34 veqfifr, 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 masses being locatedqn ,sv r-eif+fd4e 38h at the origin, (0, 0)?

  Use Table 7-1 to calculate the position of the CM of a whole leg inclw7.pe /wo5nyquding the foot when the leg is str.o/7ep5 wn qywetched straight out. Assume the person is 1.60 m tall.