What is the SI unit of momenls*pg.af/ ; wstum?

  When a cannon fires a cannonmu.dq+ ly /8vx9cn q6tball, the cannon will recoil backward because the

  A freight car moves alongtyu8a- k 5ibl in, 0vg/n3ir0j a frictionless level railroad track at constant speed. The car is open onyi5vu bkr,/3ijn-ag i0 8n0 lt 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 *y u+7xn4zqgghappenxg+uy z *q4ng7s to the velocity of the sled?

  A rubber ball and a lump of putty have equal mass. They azl)9b2yut1ijgb9 zz6re 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 experien9lut92zg ) ijy z1z6bbces the greater momentum change?

  A sailboat of mass m is movi36xn *t olo2ghl rs.(hng with a momentum p. How would you represent its kine *( no.t236lhhlxrgo stic energy in terms of these two quantities?

  If you pitch a baseball with twice the kinetic energy uo-iwt13mh8 kyou gave it in the previous pitch, t3-uim k1 howt8he magnitude of its momentum is

State Newton's second law in terms of momenl6ln4z;(dq2m uxqw0c o8s -ff3cen j 0tum.

State the law of conservatijz3 hp(bteto ))b-0ztrs:8 lu;i md-yon of momentum.

  The area under the curve on a Force versus timed6:36f l(w tacrz,ori (F vs. t) graph represents

  Which of the following is an accurate statemeh ,e :n2(lfr * *qlgl*vu+h( m/zbfabint?

  A small car meshes with a large truck in3s6tqs5i.3+s b3p. vkoqhbbp a head-on collision. Which of the following statements ctiq. kb3so.p3s3+56 pvq hsbboncerning the magnitude of the average collision force is correct?

  Two equal mass balls (one red and the other blue) are droppf(z 2r/lwa/cngnw k w3d-8c;y ed from the same height, and rebound off the floor. The red ball rebounds to a higher position. Which ball is subjected toc2ny 3rncz/d;ww/k 8fwag- (l the greater magnitude of impulse during its collision with the floor?

  A Ping-Pong ball moving7b3 w afg92+vqk:asf ;mw o:gk east at a speed of 4 m/s, collides with a stationary bowling ball. The :fs7 fk:3m2q kva; ow9wg+gbaPing-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 bounce0/s zj/ /uvgzg0x v :gn)k0omk off each other. Linear momentum

  A 3.0-kg object moves to the right f1ceqifd uaed5()-p)at 4.0 m/s. It collides head-on with a 6.0-kg object mod(eafed5 pc ) -f)i1quving 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-kg5*pw2nrn.n vcqi //k-cb na/x9rh0g ba ;l ok4 halfback /ohinbc/bvkwg-0 px 5c;4 laq . /n9rkr*na 2nrunning
3.1 m/s. Neglecting the effects due to digging in of cleats,

  In an elastic collisiool 0 /iaiye nnii8v*//qys5,z n, if the momentum is conserved, then which of the following statements is true about kinetic esi eq/58 y0li*n/azy/iovn,i nergy?

  When is kinetic energy conserved?owrdmh4ztc+u itb c:22 1faw)frxl,0tgs8 63

  In a game of pool, the white cue ball hits the #5 ball and stops, ws -6evtiu imz r.u)*b:hile the #5 ball moves away with the same velocity as the cue ball had o.-v*sbi) tzu6eumi :rriginally. The type of collision is

  When a light beach ball rolling with a speed of 6.0 m/s collides wzjwsedqyk,ax 3w1wf4+ mjei9k a923o *iw r2-ith a heavy ex4qo+s1j2wawkka3 myd2,e wix- f9r ew93ji*zercise 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 collisi)f o5r3z.aky5bc ab5f 3 r0uzpon with a stationary bowling ball in a friction-free environment. If the collision is almost perfectly elastic, the speed of the golf ball immediat33zp ry.5r)a 5bba5f0z fckou ely after the collision is

  A rubber ball with a speed of 5.0 m/s collides head-on elastically with ap82 p(gn9 daqjn identical ball at rest. What is the speed of the initially stopped ball after thenj2 9dpa p(8gq collision?

  A very heavy object moving with speed v collides head-on with a very g i;7vf(l .9wwn ulmt2light object at rest. The collision is elastic, and there is no vg2 ww97 mtin;u( llf.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 lxb jmkl8i9g m28nf6e q/z:ldcx)/fo mmi* -6head-on with a very heavy object at res2/f8l8x )-m* ix:oq lm69g dzmikmnjcbfe/6lt, 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-oliz44j5j -p e*ee2wk;fm0 d kwn with a yellow ball of equal mass moving with a velocity of -2.0 m/s. What is the velocity of the yellow ball after t ;jkp *e04l-zjdwee ki2fm4 5whe collision?

  A very heavy object moving with velockj7v9*wjvwd,b/ w*v rity v collides head-on 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 objw*bjw /v v,9dvrj7wk*ect after the collision?

  In an inelastic collision, if the momentum is conserved, then which of the fo-df 1hpb3zx l7llowing statements is dh7bf31pl-z x true about kinetic energy?

  Two objects collide and stick together. Kinet3h,h p3mcm y-xic energy

  A 3.0-kg object moves to the right at 4.0 m/s. It collides in a pe. qwfwvpq*m y n1r- +y16s.obprfectly inelastic collision with qnyf p*b. +.w1wpv-sy16qo rm 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. Which * c zs8:iacd-robject experiences the larger magnitude of momentum changei*-z rs 8accd:?

  In a game of pool, the white cue ball hits the #9 ball)g*8,(ta 0ylt y mocxv 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 t kojuik .6lg)/he following statements is false?g6uk o. l)/ikj

  Which of the following i0vf,iberhumzd1;*i 0 s a false statement?

  Tightrope walkers walk with a long flexible rod in 2m54u q td(g)ijp*zzx order to

  A plane, flying horizontal(l)k1fa29qd8gf,fyzs4dmpo *. vvg sly, releases a bomb, which explodes before hitting the ground. Neglecting air resistance, the center of m y4 gglf,qvkp8 f2f* od9.1 z(svads)mass of the bomb fragments, just after the explosion

  Two cars collide head-on on a level frictioy9)hdrs js9 oqj:,icq1z q7p4 n-free road. The collision was completely inelastic and both cajry9s, q4c7: )1iqhzsdjo9 pqrs quickly came to rest during the collision. What is true about the velocity of this system's center of mass?

State Newton's second lor:le,.g2te s-muas ( aw for a system of particles.

  What is the momentum of a 2000-a +me5jsh yofe t/ -nkl(9ili-d.p(f3kg truck traveling at 35 m/s?

  A 1200-kg ferryboat is moving sooidp9 vl08-4g-vv hx+y8c ihhuth at 20 m/s. What is the magnitude of its momexo g8ih8v 94chy ip0-vhd-l+vntum?

  A ball of mass 0.10 kg is dr wkw.tl6 uug6:opped from a height of 12 m. Its momentum when it strike:lu w6g.uk6tw s the ground is

  Two identical 1500-kg cars are moving pe t4b/ lbh2j0 mlh:uty5rpendicular to each other. One moves with a speed of 25 m/s due north and the other moves at 15 m/s due eas0j4 t bblml5hh/ u:ty2t. What is the total momentum of the system?

  A handball of mass 0.10 kg, traveling horizontally at 30 m/s, strikes ,wl):o d4 a*nhyaqd2 ta wall and rebounds at 24 m/s. What is:a ol2q ,)w*ahtyn4 dd the change in the momentum of the ball?

  A 0.060-kg tennis ball, initia ,h4 r9vshth,ally 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/s. What is theh v,4,9s rhhat change in momentum of the ball?

  A 50-kg pitching machine (excluding the baseball) is placed on a frozen pon((94nm3p i+s ei i h2ltu5etpud. The machine fires a 0.40-kg basebali(i3l5t ee+9i 4shmnu (p2ptu l 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-wal:k1 kmmb5bb 3lking outside the space capsule and is stationary when the tet3mmkl5bb: b1kher 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 astronaut move toward the capsule?

  A small object with momentum 5.0 kgm/s approaches hesh) c7m:r0,9cepj lpv ad-on a large object at rest. The small object bounces straight back with a momentum of magnitude 4.0 kgm/s. What is the magnitude plhccs0 ),j erv:m7 p9of the large object's momentum change?

  You (50-kg mass) skate on ice at *svj;zj3qf2 i4.0 m/s to greet your friend (40-kg mass), who is standing still, with open arms. As you collide, while holding each other, with what speed do you both move off tos*f;z2 jq ji3vgether?

  A car of mass 1000 kg moves to the right al7y c)ts82qghf y65cz song a level, straight road at a speed of 6.0 m/s. It collides directly with a stopped motorcycle of mass 200 kg. What is the total msz72t yg8y6 qcsf5)chomentum after the collision?

  A 1000-kg car traveling at 25 m/s runvc.q,r +jya;n01e. p6qkbg ;rjd xw*d s into the rear of a stopped car that has a mass0g1qkrvj.y*;x 6bwed + r;.,ja nd cpq 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 allowed to coast along a of -6s lwc,do7level track at a speed of 2.0 m/s. It collides and cofs,ldo76 -w 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 with negligible frictijn bmfoj /d5ubm*:;/* : gtnnron 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. How fast will the car be moving afte*fj/nnm m:b;o:jnt5/ b*g ur dr this happens?

  A 60-kg person walks on a 100-kg log at the rate of 0.80 m/s (wit du+am gsdfq3-ib avd++) b-g+h respect to the log). With what speed does the log move, with respectsg qvfm-+a d+ +bd)+ ig-a3dbu to the shore?

  A 4.0-N force acts for 3.0 s on an object. Tn.dwp6h(+lhverldv y.k0 ) v( he force suddenly increases to 15 N and acts for one more second. What impulse was imparted by these forces to the 6. r (vndvy(lhkwhp ed+.)v0l object?

  A constant 9.0-N net force acts for 2.0pke4d *wg,(bu s on a 6.0-kg object. What is the object's change of velocity?kueg4d (bw*,p

  A 2000-kg car, traveling to the right at 30 m/s, collides with a bricmykn8 - af ve:jlmg(+2k wall and comes to rest in 0.20 s. What isa:2(8vk y+egj n m-fml the average force the car exerts on the wall?

  A 2.0-kg softball is pitched to you at 20 m/s.* 9r/jwb hohxawqxx;1u 54 qvpd7n74s You hit the ball back along the same path, and at the same speed. If the bat was in contact with the ball for 0.10 s5ad x/wx qn9hwrx4 77boju;1*spvq h 4, what is the magnitude of the average force the bat exerted?

  A 0.10-kg ball is dropper8uxycy6 24 xm19wga5 +gy;yzdeov+a 7ct 0 ffd onto a table 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 tf +eyx or dufz726ax;y4gg mv0cy8c 5tya +1w9able 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 bullets, with a muzzle q8,a*2rd t834 osapxv zmrve 0velocity of 750 m/s, at the rate of 300 rounds per minute. What is the average force exerted on the machine gun m8r34ps 2v,a0roezmv 8tda* xqount?

  A fire hose is turned on the door of a bur1mvaa-hafs4*;)nd5r , 2,wgkvo ptkrning building 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 needed, assuming the water doesn't bounce bac4o s* atwhmd5,-rkp2 v1;av)raf, gnk k?

  Water runs out of a horizontal drainpipe at the rate of 120 kg per minuxg0n tk qn+9w3te. It falls 3.209gn0n wk+t q3x m to the ground. Assuming the water doesn't splash up, what average force does it exert on the ground?

  A toy rocket, of mass 0.12 wq w(w/l s8x8eg-uxf 0kg, achieves a velocity of 40 m/s after 3.0 s, when firxe0fqu-8gx 8wl/sw( w ed straight up. What average thrust force does the rocket engine exert?

  Two astronauts, of masses 60 kg and 80 kg, are initially at rest s6)e 1c tj4hboin outer space. Tjo )e1hts4bc 6hey push each other apart. What is their separation after the lighter astronaut has moved 12 m?

  A 3.0-kg object moves to the ri/ lf 2rxuj3w:wagld;3 ght with a speed of 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 isjwux2grl/f;a3:lw3d the total kinetic energy after the collision?

  A 0.10-kg object with a velocity of 0.20 m/s in the +x direction makesgb *;we7)y hft a head-on elastic collision with a 0.15 kg object initially at rest. W)yt;w * gfhb7ehat 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 ac6+j sgnr ;i:w 1.00-kg block at rest. The bullet emerges (the bullet does not get embedded in the block) with half of;sn6g c:ij rw+ its original speed. What is the velocity of the block right after the collision?

  A proton, of mass m, at rest, is struck head-on dwmy9 /+aph1ga, :c4pem9fnr 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-particle have after the collision? (A9 9adg4h wypperc+f /,n a1m:mssume the neutron's mass equals the proton's mass.)

  A 50-gram ball moving +10 m/s collides head-on with a stationary ball n;.,c vt b hpbix543x u9akf9 p(p5vsdof mass 100 g. The collv 5hxn xuksf, p9(b3pat d9. 5;c4bvpiision is elastic. What is the speed of each ball immediately after the collision?

A ball of mass 400 g moving toward the east with a speed of 3.71jh1ab:a: m 8)iyspcz0 m/s collides head-on with a 200 g ball sitting at rest. The collis1sah8za1p j ::ybcm) iion 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 hv q3ek:g5b h7a 3.0 kg mass at rest. If the collision is perfectly inelastic, what is the speed of the masses bv 3 5kh:7egqhafter the collision?

  A 2.0-kg mass moving to the east(*gv): ez(y bsq3 dlfe at a speed of 4.0 m/s collides head-on in a perfectly inelastic collision wz(f qg*3)lvyes:edb (ith a stationary 2.0-kg mass. How much kinetic energy is lost during this collision?

  A car of mass m, traveling with a velocity v, strikt/ ,kb i/lv.ojk,n/bb es a parked station wagon, who's mass is 2m. The bumpers lock together in this head-on inelastk.onbtbik//b jv,/, lic 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 itself kc ksd( g4dw,t+vs+1p0hx) iqin a 2.4-kg block of wood a rest directly above it. As a result, the bullet/block combination moves vertically udw04sp)t dcks+v(+qgx ,ihk1 pward.
(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-k xc),qrdb)ch(.o 4xpsg car traveling at 60.0 km/h south. The two cars stick together after the collision. (See Fig. 7-1.) What is the speedh) ,(rxdosb4q.cx ) cp of the cars after collision?

  A 1500-kg car traveling at 90.0 km/h east col+ gj)gazxx7*dj g/j7b +tk)ftlides 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 directi f +)k7jz *j)gxtb/g7at gd+jxon of motion of the cars after collision?

  Two objects move on a level frictionless surface. Object A moves east wi((o w l10wgnd9tf:fhaee 2- uvth a momentum of 24 kgm/s. Object B moves north with moment 0ohde(-n(:2lwvg u atf fw9e1um 10 kgm/s. They make a perfectly inelastic collision. What is the magnitude of their combined momentum after the collision?

  A small bomb, of mass 10 kg, is mo+b0qtc5bfo jmj f4yu.(q q7* )ib/odpving 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 with a mass of 1.0 kg. What is the velocity of the third fragment? (Neglectb+cfj(/m o fbop)bq qjt05d 4. 7u*qyi air friction.)

  A 4.00-kg mass sits at the origin, and a 10.0-kg mass sitstci( gfz 2z6 eo6dg/sr kb4g:: at x = + 21.0 m. Where is zs: doz/cr (g 26gig:46etk bfthe center of mass on the x-axis?

  The center of mass of a two-particle syx6zfsrv6 axijcd 3 60gw*;yd 3stem is at the origin. One particle is located at (3.0 m, 0)6xvws*; 03dyg djicx 6a6r3fz 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: 2.0 kg at (0, 0), 2.0 kg at (p+v,uum 0f9d.xp5 zt *qlu(dc2.0, 0), and 4.0 kg at (2.0, 15*+d.zdpq uu(p fxm 0lctuv,9.0). Determine the coordinates of the center of mass.

  Three masses, 1.0 kg, 2.0 kg, and 3.0 kg, are located at (0, 0), (qh)oxxz m0v0la +)4ov1.0 m, 1.0 m), and (2.0 m, -2.0 m), respectively. What is thea+)oxq0lh0v zxm v)o4 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 qw/gweazg*./w h78li (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 located at the origin, (0, 0*7ezw gwa/i /w g8.lhq)?

  Use Table 7-1 to calculate the position of the CM of a whole leg including the .ubnrzv-r9-wfoot-.w vzr9 n-ubr when the leg is stretched straight out. Assume the person is 1.60 m tall.