What is the SI unit of momentum?klj17hml1g:a: c n4l fjt0yu *

  When a cannon fires a cannonball, the cannon will recoil backward because thepg n3b(jfa4k)

  A freight car moves along a h2j .k1vbp* ixry: a5ofrictionless level railroad track at constant speed. The car isa .yjvhork1b i:5p2x* 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 onp+s ).grax.q) j ye/gi frictionless ice. What happens to the velocity of thjgxg)ap qr.e .si)/ +ye sled?

  A rubber ball and a lump of putty have equal mass. They are thro8 gn0w7issk h4wn 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 experience7is8h nksg w04s the greater momentum change?

  A sailboat of mass m is moving with a momentum p. How would you p xw5r6mez) eom7dr5q ,96kvdw5 g; uqrepresent its kinetic energy in terms of these two q,u65 ge dmxq 5eovr)5w6zd; wkq mr9p7uantities?

  If you pitch a baseball with twice the kinetic energy you gave it in)dbixnw;7o6j/2rf4-l x fa ;nxadb k7 the previous pitch, the magnitude of itsn w dklji4/o;-a 6b)x;x7rfbnx7df2 a momentum is

State Newton's second law in terms of: a6dp8 ak0w2 dd in95g r1scmq9objf6 momentum.

State the law of conservation of tuyve5lanx9iw ),; :pmomentum.

  The area under the curve on a Force versus time (F vs. tn*aag8+teg-onn sc 7- ) graph represents

  Which of the following is an accurate statement?oi-yn2oo+7 d4 p0 pdt)/mwilt* o ex;w

  A small car meshes with a large truck in a hsqns+ y 7x4b6fead-on collision. Which of the following statements concerning the magnitude of the average collision force is correct?+xb n47 qfys6s

  Two equal mass balls (one red and the other blue) are xdlbrs-yu xo/;;,5 fhnm.o iqm )u v:*dropped from the same height, and rebound off the floor. The red ball rebounds to a higher position. Which ball is) ,o;ld- u/o5bmnyh fqxvrm .;*s:ix u 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/s, collides wi,4wyp/q 2pt)j dkga+lth a stationary bowling ball. The Pin) yljq awd2,k p/4g+tpg-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 eachj,onmqq k7n+6 8 jq-qh other. Linear momentum

  A 3.0-kg object moves to th: e hdl:t2w* ahib**fce right at 4.0 m/s. It collides head-on with a 6.0-kg object moving to thec :litbfw*a*h:h * de2 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-kg halfbe;jwli 7q f73j+ s pgvl,;yfo5ack runniig y;we,flsq7 j7p3+ fo ;jl5vng
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 the figa6* hoo8he 47alsxb.jh4h03zd4 fz ollowing statements is true about 4lxehj.hdi7z *0ah6 hz oog48s bfa34kinetic energy?

  When is kinetic energy conserve/8sob, sgogxg+ p.;4lnf v)tvd?

  In a game of pool, the white cue ba:l: s8c/zew2zu0ix +fakgwo* ll hits the #5 ball and stops, while the #5 ball *0u gca/s +zlzxkoe :w fi8w2:moves away with the same velocity as the cue ball had originally. The type of collision is

  When a light beach b21b ofre 3xsk7all rolling with a speed of 6.0 m/s collides with a heavy exercise ball at rest, the beach ball's s12 ke bsfr37oxpeed after the collision will be, approximately,

  A golf ball traveling 3.0 m/s to the rightkcds 6dba-im +/ha ;i( collides in a head-on collision with a stationary bowling bcab+i6mdi-;s dha(k/all 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 hea2dt(-fx3 zxa nd-on elastically with an identical ball an2( z-faxxt d3t rest. What is the speed of the initially stopped ball after the collision?

  A very heavy object moving with speed v collides head-on with a very ligh gzcwcsp:u9-c)-: 6b4fl b3glsg ,- :mpst wvat object at rest. The collision is elastic, and there is no friction. The heavy object barely slows down. What is the speed of the lis c -:gsv:b6 g-pszcfcab4 ll9-,gwm:tw )u 3pght object after the collision?

  A very light object moving with speed v collides head-on with a very heavy objecteb 2- j(6mlemt at rest, in a frictionless environment. The collision is almost perfectly et-e2lmm(j6 belastic. 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 yellow balp6ya(p*t)zj b4f3 *m4.r sukyfr* zf dl of equal masf p4tdy.rp r*6 f*u(f )am3zj yks*z4bs moving with a velocity of -2.0 m/s. What is the velocity of the yellow ball after the collision?

  A very heavy object moviq4wjr 0ag21la7 q zre yz.y*z3ng with velocity v collides head-on with a very light object moving with velocity -v. The collision is elastic, andz .qr*wyjaa yqlge14zz 7r03 2 there is no friction. The heavy object barely slows down. What is the speed of the light object after the collision?

  In an inelastic collisio 0yz2rktqv93-k kn(e xn, if the momentum is conserved, then which of the following statements is true about kinetic envq kk92k (t3 0enz-rxyergy?

  Two objects collide and stick together. da9v8/ er2 u.x giz2bnjr-ru5 Kinetic energy

  A 3.0-kg object moves to the right at 4.0 m/s. It collides in a perfectly inele( 7a8st7wj iyastic collision with aae7w 7yjt(s i8
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 pb1w1*n :nn0xn;so*afxa p2zand sticks. Which object experiences the larger magnitude of momeanw: 0 xf ;1n2zpan*o1bxp* nsntum change?

  In a game of pool, the white cue ball hits u i4zlhr5bpe7aax *(9the #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 folngs 3:jz.szxo:4nbzp ).)z zvlowing statements is falses:vjzz ) po.z4z n.gs3):zbn x?

  Which of the following is a fa lb k g9ple:6./qs/kxkl8ii5alse statement?

  Tightrope walkers walk with x +ga6gff 7b/ta long flexible rod in order to

  A plane, flying horizontally, 7vel*(g c 0:ccxt512cznm uutreleases a bomb, which explodes before hitting the ground.c2 70:uuz n(5vce tmtgccl*x1 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. Tybrj4haoe1 m8z26c 9y+ evosg- .tek6he collision was completely inelastic and both cars quickly came to rest during the collision. What is true vhzye gce42b o9yotsjea8- +kmr1.66about the velocity of this system's center of mass?

State Newton's second lafuz/g.ynkrx 9ya8s i65 v(3mrh;/ nq :2gdwm zw for a system of particles.

  What is the momentum of a 2000-kg truck traveling at 35fgyz)2hf2,q ytn6v g + m/s?

  A 1200-kg ferryboat is moving south at 20 m/s. What is the magnitude of its n 0vit .fji61a nl37bnmomentum630i7 ifvj b.nlnat1 n?

  A ball of mass 0.10 kg is dropped from a height of 12 m. (.2dyrbjq gl zq*o 3b, Its momentum when it strikes the ground is bjlzb,qyg2 3o( r.d*q

  Two identical 1500-kg cars are moving perpendicular to each+t trp0p/v c)6yb3oqa0z 1lflg+pn,x other. One moves with a speed of 25 m/s due north and the ovlppb o/3nlca+t,yq0t +x0f) 6z1r gpther moves at 15 m/s due east. What is the total momentum of the system?

  A handball of mass 0.1 r nm /skj(yzq ) e8f(u4hlj;99cq9vpw0 kg, traveling horizontally at 30 m/s, strikes a wall and rebounds at 24 m/s. What is the change in the /m9( y9kqce;jfj8)squz hw4 v9nlp r(momentum of the ball?

  A 0.060-kg tennis ball, initially mo2c gm owv6w1f5ving 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 vcg1wf6w5 m o2is the change in momentum of the ball?

  A 50-kg pitching machine (excluding the baa: 3fd9i++e u ituw.flseball) is placed 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 recoi+t :e u+wd.iuffla3i9l speed of the pitching machine? (Assume negligible friction.)

  A 70-kg astronaut is space-walking outside the s;jfl ;fk f,0fupace capsule and is stationary when the tether line breaks. As a means of returning to the capsule he throws his 2.0-kg spac kj;ufff,fl0;e 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 mmg 9ox:r e4,vjard9c+omentum 5.0 kgm/s approaches head-on a large object at rest. The small object bounces straight back with a momentum of magnitude+g9o,rv: djea9cx 4r m 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 gryomn8 gu;d+e )eet your friend (40-kg mass), who is standing still, with open arms. As you collide, while holding each other, with what sp)g+n y8mo;edu eed do you both move off together?

  A car of mass 1000 kg moves to the right along .mioo31i 3owxpz,ec2 a level, straight road at a speed of 6.0 wo.23ci 1zom,o pxe3 im/s. It collides directly with a stopped motorcycle of mass 200 kg. What is the total momentum after the collision?

  A 1000-kg car traveling at 25 m/s runs into the rear of a stoe8 4s+ae js4tjfw:t/ opped car that has a mass of 1500 kg and they stick together. What is the speed of tej /4o+j s s8t:ate4fwhe cars after the collision?

  A railroad freight car, mass 15,000 kg, -p39* 3nrwegcu/ wl b91a dcrvis allowed to coast along a level track at a speed of 2.0 m/s. It collides and cogbnd *vw e1/9rl9wu rcp-3a c3uples 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, rj7t(m 1 fcfk1lxxk,; rolls with negligible 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.1 fk1 ,(xml7rjtc;fk x How fast will the car be moving after this happens?

  A 60-kg person walks on a 100-k; gl fzwxx(3m+g log at the rate of 0.80 m/s (with respect to the log). With what speed dx zw (g3m;+flxoes the log move, with respect to the shore?

  A 4.0-N force acts for 3.0 s on an obrmotl*shz;1yd33 z 9 xject. The force suddenly increases to 15 N and acts for one more second. What impulse was impartmslt1 ry9o*z zdxh;33 ed 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 tg6qqew er,jjm(e) 07qhb .1y ohe object's h6.rjg,ey (o 7)wm10qqeqb e jchange of velocity?

  A 2000-kg car, traveling to the right at 30svh.yi2yb: jf t31+vf(h h /u2i:chpi m/s, collides with a brick wall and comes to rest in 0.20 s. What is the at:i (:h uvs.3 vjifcyf b/2yh2 h1hpi+verage force the car exerts on the wall?

  A 2.0-kg softball is pitched to you at 20 m/s. You hit thevrce7vx b359g ball back along the same path, and at the same speed. If the bat was in con5vrx3b 7c9 vgetact 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 table top. The stg/fk 8ksfchaj09z oe /n*+f6 peeds of the ball right before and right after hitting the table top are 5.0 m/s and 4e8 f//c+f0go fjkk9zsn *t ha6.0 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-gbx0hd / m 90sgl4gjf2uram bullets, with a muzzle velocity of 750 m/s, at the rate of 300 rounds per minute. What is the average force exerted on the mabg hdfu 0sm0g4lj/9x2chine gun mount?

  A fire hose is turned on the door of a burning bu7*vjah0ihkv 1vv8 2tlilding in order to knock the door down. This requires a force of 1000 N. If the hose delivers 40 kg per second, what is the minimum velocity of the stream n 1vi0htv 7h*a8jk 2lvveeded, assuming the water doesn't bounce back?

  Water runs out of a horizontal,lk)xot +z:3grt0 nrg drainpipe at the rate of 120 kg per minute. It falls 3.20 m to the ground. Assuming the water doesn't splash up, what average forc,0)nzol rt:r t kgxg+3e does it exert on the ground?

  A toy rocket, of mass 0.12 kg, achieves a-6/k3v+u (u/wsgez d* cym eafgv/k (j velocity of 40 m/s after 3.0 s, when fired straight up. What average thrust force does the rocket engue j //gsk*wue-3f v(/kv z(mc ydg+6aine exert?

  Two astronauts, of masses 60 kg and 80 kg, are initshfse r ,ho -w1ej-eq6e+r0/d ially at rest in outer space. They push each other apart. What is their separation after the lig/6hhsr s+10fe --, ereqdjeo whter astronaut has moved 12 m?

  A 3.0-kg object moves to the right with a speed of 2r g;dg078yy-(hnvwv m .0 m/s. It collides in a perfectly elastic collision with a 6.0-kg object moving to the left at 1.0 m/ wy8m0;nvhg y7rdg-(vs. What is the total kinetic energy after the collision?

  A 0.10-kg object wits+m:qj0 qzi /kz vrdd3m 8ee;3h a velocity of 0.20 m/s in the +x direction makes a head-on elastic collision with a 0.15 kg object ids38:re+3mz0 qk e/mzj vdqi;nitially at rest. What is the final velocity of the 0.10-kg object after collision?

  A 10.0-g bullet movijk 1t uc*2s1wdng at 300 m/s is fired into a 1.00-kg block at rest. The bullet emerges (the bullet does not get embedded in the block) with half of its original speed. What 1twk2d* j1suc is the velocity of the block right after the collision?

  A proton, of mass m, at rest, is struck head-on byvcl60 sq55aus an alpha-particle (which consists of 2 protons and 2 neutrons) moving at speed v. If the a ss55lcuqv60 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-on with a stationary ball of46ppq ..gg thai+/t jq mass 100 g. The collision is elastic. What is the speed of each ball immediately at.ap hq+.jg ig46/tqpfter the collision?

A ball of mass 400 g moving toward the .o j8hme4oaj:*ojpr7 east with a speed of 3.70 m/s collides head-on with a *r.ompoo7j48 ja h :ej200 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 collides head-on with a 3.0 ktwdct91g;wk; g mass at rest. If the collision is perfectly inelastic, what is w9kw;gcd;1tt 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 xoxybe - a.r-rs26pf0collides head-on in a perfectly inelastic collision with a stationary 2.0-kg mass. How much kinetic energy rxf- as2 o r0xb-.6ypeis lost during this collision?

  A car of mass m, traveling with a velocity v, strikes a parkzo - x7oqwgbzb 4-h/r3ed station wagon, who's mass is 2m. The bumpers lock together in this head-on inelastic collision. What fraction o ho g7b4bzqxzr3/--wof the initial kinetic energy is lost in this collision?

A 15-g bullet traveling 213dwu: uytn887 m m/s in a vertical direction buries itself in a 2.4-kg block of wood a rest directly above it. As a result, d8n: uty87um wthe 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 kmtx/q q91y h,akrh/ h1d iz0w,w/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.) Wh , /z0ry,h1hawi 1kxq/9dqtw hat is the speed of the cars after collision?

  A 1500-kg car traveling at 90.0 km/h east collides with a 3000-kg car travelingx e gtzxevqx,*5:br+rkb5 a0+ at 60.0 km/h south. The two cars stick together after the collision. (See Fig. 7-1.) What is the direction of motion of the c z+*q x,rx5a ebe5tb:g0rvk+ xars after collision?

  Two objects move on a level frictionless surface. Object A moves east lpar+c 9k -w4lfvgs4 *;hlpl-k4/rig with a momentum of 24 kgm/s. Object B moves north with momentum 10 kgm/s. They make a perfectly inelastih/*+rl4vs4p il-lk cpalg; rg- kw4f9c collision. What is the magnitude of their combined momentum after the collision?

  A small bomb, of mass uy j)(2sx (xy /4 qbkwn2kquq)10 kg, is moving toward the North with 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; and a third fragment wit2)w yn u)sb (uq4kjqykq2(/xxh 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, and7a+ b:ejak qn-3cbl6f a 10.0-kg mass sits at x = + 21.0 m. Where is thfk+qbe : blj6c- na73ae center of mass on the x-axis?

  The center of mass of a two-particle system is at d q4s5c/ * a7xgwxwb3duw2,tqthe origin. One particle is locadqs 4/3* 2t7wd , xc5wwubagxqted 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: 2.9w *hs9t9i)hw1.fm qx/ lhl hp0 kg at (0, 0), 2.0 kg at (2.0, 0), and 9slhh9)/wftl hh 1 *mqw9pxi.4.0 kg at (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 locateya aboua3u h -17w33.ioyz7yxv1;c shd at (0, 0), (1.0 m, 1.0 m), and (2.0 m, -2.0 m), respectively. What ;a7hxou azco-wu hvybi3.31 y3 7 asy1is the 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 mass is positioned at (16dftjla6dy koi*2 **jm 36 fvo2, 0). What are the coordinates of a 4.0-kg mass which will result in the center of mass of the system of three2j6ft*amfd vod j6i *3*loy k6 masses being located at the origin, (0, 0)?

  Use Table 7-1 to calculate the position of the CM of a whole leg including the81xu5kcjj h,p v jk79x fo8jcx71jvup,5k9x hkj ot when the leg is stretched straight out. Assume the person is 1.60 m tall.