What is the SI unit of mom cg-p8r *qfzq4entum?

  When a cannon fires - z:kkv r*dwj.lz kq)*a cannonball, the cannon will recoil backward because the

  A freight car moves along a fpx5-b eq l-y,rrictionless level railroad track at constant speed. The car is open on top. A large load of coal xq-y -e5rp,blis 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. Whafki ye(4k k.3vt happk(3e4kfiv k.yens to the velocity of the sled?

  A rubber ball and a lump of putty have equal mass. They are th b(au/xp8 ngl6rown 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.lp 6/aub(n8gx Which objects experiences the greater momentum change?

  A sailboat of mass m is moving with a momentum p. How would youa1:p*s;b3 yxf;ubbbp represent its kinetic energy in terms of these two quantities?sfypbb * b;;31b uapx:

  If you pitch a basebapj(,rs/-do8kxnmi e ;ll with twice the kinetic energy you gave it in the previous pitch, the magnitm-io ; n esdj/r8(kpx,ude of its momentum is

State Newton's second lawefsqrr8 p /;v7 in terms of momentum.

State the law of conservation o5;g+n49ic6 z ;d i 0mlu c:3tdnfuidykf momentum.

  The area under the curpx*m(o. tac0 d6w)ujv ve on a Force versus time (F vs. t) graph represents

  Which of the following p os8gt7u- 6 :5me)swwbcz*o uis an accurate statement?

  A small car meshes with a large truck in a head,.-3a9z tn- b j 7vct)mcvvumq-on collision. Which of the following statements concerning the magnitude of the average collisionb tz q7)c n,jmt9v .v-vamc3u- force is correct?

  Two equal mass balls (one red and the other blue) are dropped from th3 gq+ja)tlh v2e same height, and rebound off the floor. The red ball rebounds toa2v) jqh gl3+t 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 speeds9;s;h g2kod0loo/5cqpok .z of 4 m/s, collides with a stationary bowling ball. The Ping-Pong ball bounces back to the west, k/k0pc;s2;g o slo5ozqoh 9d.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 moxsfc8g1ip 8b 5m w/z q**0lcztmentum

  A 3.0-kg object moves to the right at q. eq )8gv/p5 fpptphc6.aly54.0 m/s. It collides head-on with a 6.0-kg object moving to the left at 2.0 m/s. Which statemet8 qqv le)gp6py/pf 5c ha5p..nt is correct?

  A 100-kg football linebacker moving at 2.0 m/s tackles head-on 8zee 0/2rs ml cb+na3nan 80-kg halfback runcs2 beezn/+ma8nl 03 rning
3.1 m/s. Neglecting the effects due to digging in of cleats,

  In an elastic collision, if the momentum is conserved, thendzze 04pf w k)hgef o4*jr).r) which of the following statements is true aboutw*4kf eodjf)pr.eh0 zr)4z g) kinetic energy?

  When is kinetic energy consezjh8+3iz s)o.v 5as wlrved?

  In a game of pool, the white cue ball hits the sz ;33sg4rjr3 wlrrd7 #5 ball and stops, while the #5 ball moves away with the same velocity as the cue ball had originally. The type of cowr 7s4 3rrg3;sz3 ldrjllision is

  When a light beach ball rsn1 8o 2 z /.nyf,snxgb4ajse5olling with a speed of 6.0 m/s collides with a heavy exercise ball at rest, the beag2fjye o84zb s,sns/. nan1x5ch ball's speed after the collision will be, approximately,

  A golf ball traveling 3.0 m/s to the3gyi.6 zpv.l:6)sp lo31zburgze kl: right collides in a head-on collision with a stationary bowling ball in a friction-free environment. If the collision is almostpl1i.gke)zps3: ro3.v: zl6yb lzg6u perfectly elastic, the speed of the golf ball immediately after the collision is

  A rubber ball with a spex/3gzx,z. oaq ed of 5.0 m/s collides head-on elastically with an identical ball agx.z/,xqaz3 o t 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 auner8 x+ui/c ynt) c*3 very light object at rest. The collision is elastic, and there is no friction. The heavy object bucx/ c +n3une8it*y)rarely slows down. What is the speed of the light object after the collision?

  A very light object moving with speed v collides hecc ondfqz 85 m7o o/oko4;/sr6ad-on with a very heavy object at rest, in a frictionless environment. The collision is almost perfectly elastic. The spe5of/kzoqocr 8n7ocd/o6;s4m ed of the heavy object after the collision is

  A red ball with a velocity of +3.0 m/s collides head-on with a ye pxhv- 7*b,4vx* ,jnel xie*fdwa lo6+llow ball of equal mass moving with a velocity of -2.0 m/s. Whatna+6b7wxh,vv*4 ,dje * o-flxpil e*x is the velocity of the yellow ball after the collision?

  A very heavy object moving with velocity v collides hea l9ry./tb: w.si(ii tpfpwl4- d-on with a very light object moving with velocity -v. The collision is elastic, and there is no friction. The heavy objpiiflbw-l.try.t iw 9s:p/(4ect barely slows down. What is the speed of the light object after the collision?

  In an inelastic collision, if the momentum is conserv4z4,fd; 0:dp ve9m-cc .mp nxytru70bxjzjw4 ed, then which of the following statements is true abo;4 ezn buxm.zdjpp0ccd,-v9y4j: 40 x 7 ftrmwut kinetic energy?

  Two objects collide and stidd, l/st jo2:sg0k1 etck together. Kinetic energy

  A 3.0-kg object moves to the right atq)gi o(9q9i;oprg ,g/if4rr q 4.0 m/s. It collides in a perfectly inelastic col r;(q9rgi,gpg4r qo) i o9q/iflision 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 andmf )m wp)bcbqx/ze(-*ph 4u: c sticks. Which object experiences the larger magnitude of )m*p 4-)(fx uc:pebb/cmw z hqmomentum change?

  In a game of pool, the white cue ball hits thlt pvr; lp)07v:l-xih e #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 following stas1*d(cfz l- f4l/dlq yk m8xq2tements is false 2yxzqdl41fdl8qlk( / f*-msc?

  Which of the followi of5kmzj7d9 3b lrc3vp/d(/lws j*p x*ng is a false statement?

  Tightrope walkers walk with k(w(ln 82 rrlu+ b;/+iwena oxa long flexible rod in order to

  A plane, flying horizontally, releases a bomb, which ec-2ht p,cv1lpxplodes before hitting the ground. Neglecting air resistance, the center of mass of the bomb fragment,lphvcc-1 tp2 s, just after the explosion

  Two cars collide head-on on a level friction-free road. The collisudzaxhg.z) b x1 i/uo5zdfydp08/ ; 1wion was completely inelastic and both cars quickly came tow;8gi 1xozx01 a/yp.dud) hd/ buf5zz rest during the collision. What is true about the velocity of this system's center of mass?

State Newton's second+:sx5 +z al8x1gf,j yxi8.g dtm)savy law for a system of particles.

  What is the momentum of a 2+wc a9f::bd i)xl m.iqwq 0g:j000-kg truck traveling at 35 m/s?

  A 1200-kg ferryboat is moving south at 20 m/s. What is the magncw-kgsqdfy6 2bw,bhd,hl *-4itude of its momentumw ,y bh,c64g -l wddhbqkf-*2s?

  A ball of mass 0.10 kg is dropped from a b/m qck,e +9cbheight of 12 m. Its momentum when it strim,ckc+b q/b 9ekes the ground is

  Two identical 1500-kg cars are moving perpendicular to each other. One moves 2t:q., c ribbdwith a speed of 25 i.2bqr,t bcd:m/s due north and the other moves at 15 m/s due east. What is the total momentum of the system?

  A handball of mass 0.10 kg, traveling horizontally at 30 m/s, strikes a waupt4lkee0q3 v2- 9 kdmll and rebounds at 24 m/s. What is the change in the momentum-e0k uedvlq34t2p9m k of the ball?

  A 0.060-kg tennis ball, initially movinga raak+0 3k5jo 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/ok5r+a 03k ajas. What is the change in momentum of the ball?

  A 50-kg pitching machine (excluding the baseball) is placed on a frozsb1gg,xz i-u- en 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 negligible fricu b,-g1sigz x-tion.)

  A 70-kg astronaut is space-walking ou/w1-ece kyqy9cps* u9tside the space capsule 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 s9/qy 1wepu9 yes-ck* cpeed 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 head-on a large object ae6*/q pb(ewx)ufp1froll 3dbc2c 8) x t rest. The small object bounces straight back with a momentum of mduf8lx/p exb)6lop e1 rcc23*)wfqb (agnitude 4.0 kgm/s. What is the magnitude of the large object's momentum change?

  You (50-kg mass) skate on ice at 4z59zcfy qb2ksw5kamq ;5 5: dg.0 m/s to greet your friend (40-kg mass), who is standing still, with open;5 f s:5q5 gzk2bdymzkc59qwa arms. As you collide, while holding each other, with what speed do you both move off together?

  A car of mass 1000 kg m5e9 r;(qcgp2o mdqx1 scml2,poves to the right along a level, straight road at a speed of 6.0 m/s. It collides directly 1,rco5q2qmxm;lgde9p c (s2p 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 inzc eu0;/bj1n8 hdg*gvto the rear of a stopped car that has a mass of 1500 kg and they stick together. Whuh z180/ bvn gjgec;*dat is the speed of the cars after the collision?

  A railroad freight car, mass 15,000 kg, is allowed to coast izmd r0ss (b0,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 rest and with brakes released. What is the speed of0 d zm(bs,r0si the two cars after coupling?

  A railroad car, of mass 200 kg, rolls with negligibs)zl:c4g2lg5 1epdwye w3. c rle friction on a horizontal track with g4lcrepsc e l13z)w.d: wgy25a 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 after this happens?

  A 60-kg person walks on a 100-kg log at the rate of 0.80 m/s (w7woirv +epg4/ ith respect to the log). With what spe7o/vregw+ pi4 ed does the log move, with respect to the shore?

  A 4.0-N force acts for 3.0 s on an object. The force suddenly increases bo xsy*mz,n lsg.v .bpzth:-q2 - 5h3zto 15 N and acts for one more second. What impulse was imparted by these forces to thh: n2x-hl *53s.svpozzz. m,ytbq -gb e object?

  A constant 9.0-N net force acts for 2.0 s t1yxyl/ hopkwap5 81xp.,ev8on a 6.0-kg object. What is the object',yx/.8e awk 1vtlx8oyph p15p s change of velocity?

  A 2000-kg car, traveling to the right at 30fc.g p2a0g ucd67fi j( m/s, collides with a brick wall and cf.dpaig6 0cjc72 u(fg omes 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 2lf)h dwj65he 40 m/s. You hit the ball back along the same patwje5h46 ) fhdlh, and at the same speed. If the bat was in contact 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 speeds okj.;d bf 0k.1v wlnhc4f 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 average forcebdvn ;kcfl4.hkj .1w0 exerted on the ball by the table top?

  A machine gun, of mass 35.0 kg, fires 50.0-g;me7* 6 bvpfvwnw/k1 aram 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 machine gun mounw6p;7 ek* vmfb1v an/wt?

  A fire hose is turned on the door of a burning bumk/ .;u bnryp7o f2q+) f7*ldbvd xp7zilding 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 bzfd7v72pu .yr bl7+kq/o;) mpfdx n* bounce back?

  Water runs out of a horizontal drainpipe at the rate o pgljvqeyu1p i;6*0f t;-,yzr f 120 kg per minute. It falls 3.20 m to the ground. Assuming the water doesn't splash up, whf; uigy ev;q,prlz*10-6yj pt at average force does it exert on the ground?

  A toy rocket, of mass 0.12 kg, achieves a vfq9uq + sy85 uzsjb4t:elocity of 40 m/s after 3.0 s, when fired straight up. What average thrus j5t+ bu49yzsqsfqu 8:t force does the rocket engine exert?

  Two astronauts, of masses 60 kg and 80 kg, are initiallyunwxo6( ;ux th0/p d8s at rest in outer space. They push each other apart. What is their separation h/w6dx8 (o;0n tpxsuuafter the lighter astronaut has moved 12 m?

  A 3.0-kg object moves to the rf)0,vpe-fi+ f c3+chq f il4rcight with a speed of 2.0 m/s. It collides in a perfectly elastic collision with a 6.0-kg object moving to the lefpicl3 qc -f 4f,)h+i cffev0+rt at 1.0 m/s. What is the total kinetic energy after the collision?

  A 0.10-kg object with a velocity of 0.20 m/s in the +x direction maf;:6v z nae3(k9hoqvakes a head-on elastic collision with a 0.15 kg object initiah3o69;vk aq:f( vnezally 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-kg block at rest. The bupsq(4a4-/tmcj v0q vxllet emerges (the bullet does not get q atc/j-v4vx4 mp0s (qembedded in the block) with half of its original speed. What is the velocity of the block right after the collision?

  A proton, of mass m, at rest, is st8o-5mg8f 0ppo sos6 zc6m11, vdwfus hruck 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 speed will the alpha-particle have after the collision? (Aohsuomv1z8wppf 1 o8s6gs5df 0-6 ,cm ssume the neutron's mass equals the proton's mass.)

  A 50-gram ball moving +10 m/s collides head-on e3 qps3tndf -,.j ike5with a stationary ball of mass 100 g. The collision is elastic. What is the speed of each ball immediately tdnp e3.-jf isek5q ,3after the collision?

A ball of mass 400 g movinp ong8+x)8hj :1dqpz:l w.n xbg toward the east with a speed of 3.70 m/s collides head-on with a 200 g ball sitting at rest. The collision is perfectly el+n.1djxnz:l )b gq ow8hp8x:pastic.
(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 hps2j3e e ;b6v+sl-ptld46zo dead-on with a 3.0 kg mass at rest. If the collision is perfectly inelastic, whvj l 6ep+d2 3s;4pld6-ebtzos at 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 collbfuszk.uic qpo7-/ 42n b/e11 ojjzr 1ides head-on in a perfectly inelastic collision with a stationa 4-1qpoz1.s21 rciko/bzu /f7eb jnujry 2.0-kg mass. How much kinetic energy is lost during this collision?

  A car of mass m, traveling with a velocity v, strimf 28i( k)p.j xn*c,b/6 s z3edledxhekes a parked station wagon, whobjk3en/d8) xf.eh pl*ce ,6ixsd2 z(m's mass is 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 buripahgquyg 3q)kgn 4/04 n, 8zu ,ssul2res itself in a 2.4-kg block of wood a rest directly abovl2g4grk/p q u)hs3nuyg,0n 48qzs,a ue 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.ferhsqs aztbkuf8 ;/ybt-d 7,7y ,77 y0 km/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.) What is the speed of the car7-tsa7ytq ,fr/ufy be; ,bs kh 7zy8d7s after collision?

  A 1500-kg car traveling at 90.0 km/h east collides with,si0m sz 2 kon nd24*sqxc+: m0wa5apo 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 direction of motion2awasqmo :d+* 2 zmc0p,k5xnns is0o4 of the cars after collision?

  Two objects move on a level frictionless h9i56 i8/ffb:vzqjsrsurface. 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 thjs:5 8hq6fi fb9vizr/ e collision?

  A small bomb, of mass 10 kg, is moving toward the North wi93nwmd. /h sl;/5e;adz nyxxwth a velocity of 4.0 m/s. It explodes into thxe/l5/;zmww.dxyds a ; 3hnn9ree 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? (Neglect air friction.)

  A 4.00-kg mass sits at th 6lvtvjkmze364y,s bmiw;22ts3 a* s pe origin, and a 10.0-kg mass sits at x = + 21.0 m. Where is the centest3 sva3iy6j;ek, svp mm62l 2b*zw4tr of mass on the x-axis?

  The center of mass of a two-particle system is at the origin. One pacd h - ci(bex7he+;+nprticle is located at (3.0 m, 0) and has a mass of 2.0 kg. What is the location of the second x7dhhncpi e ;(e-+ b+cmass of 3.0 kg?

  Three masses are positioned as follows: 2.0 kg at (0, 0), 2.d (kyak(p u )-/ *y5elea.ejvn0 kg at (2.0, 0), and 4.0 kg at (2.0, 1.0). Determine the coordinates of the center of vy unld/)5(epaa y(e*e.j-kk mass.

  Three masses, 1.0 kg, 2.0 kg, and 3.0 kg, are loc(ve/hd w i6ezkpsr t8 s:q 7vn82hpb/ )vo;yf*ated at (0, 0), (1.0 m, 1.0 m), and (2.0 m, -2.0 m), respectively. sy f/tie(hw o8p/h2 vn8)7p : ;edzr*qk6vsbvWhat is the location of the center of mass of the system?

  A 3.0-kg mass is posig-up q+to 3/dyb k,ghflxz655 tioned at (0, 8.0), 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 5 xubtg 5,+dfkyo-q p6ghz3/lthe system of three masses being located at the origin, (0, 0)?

  Use Table 7-1 to calculate the position of the CM of a wl+27i4w--/o.plb q cdposs g ihole leg including the foot when the leg is stretched straight out. Assume the per4wlls.cp p7i/big2 -o+ sqd-oson is 1.60 m tall.