What is the SI unit of0 +f(lcnqmtg2 , +cfvvgu;dh. momentum?

  When a cannon fires a cannonball, the cannon will recoil backward because tb*43vj3- ucu+tkmk mq eq0yg* he

  A freight car moves along a frictolk 3d03lgeq2 ionless level railroad track at constant speed. The car is open on top. A large load of coal is suddenly dumped into the car. Whadleol0 qk23 g3t happens to the velocity of the car?

  A child falls sideways off a sled while sledding on frictio0aaln)y0 ekq6 nless ice. What happens tol kq)a6ay0e0n the velocity of the sled?

  A rubber ball and a lump of putty have equal mass. They are ts vwck-la8+:; 2fc ym3j 6evothrown with equal speed against a wall. The ball bou-c+efso2 kl:; mja wv8 tycv63nces 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. How would you represeo9,-i: sq hb5 9z1d8ro ncvyubnt its kinetic energy i9:-bnc dq,u o 85rbyhv sz1o9in terms of these two quantities?

  If you pitch a baseball with tgw x2/0boj1 qwwice the kinetic energy you gave it in the previous pitch, tx2ojw w q/b01ghe magnitude of its momentum is

State Newton's second law ye3ac(io7rc 4 kr06u2xhqk3i in terms of momentum.

State the law of consecx+cf 2 2 92jz.jpvibxrvation of momentum.

  The area under the curve onxs6mk-g0 j;lk- :yqw j a Force versus time (F vs. t) graph represents

  Which of the following is an accuratv0q -vl*m xxx1)qp ,yhe statement?

  A small car meshes with a large truck w lxykyq6 ob*d 2an82,in a head-on collision. Which of the following statements concerning the magnitude of ybad *,2xq w6yol8 nk2the average collision force is correct?

  Two equal mass balls (one red and the other blue) are dropped from the sa/ 3bwohj )35 i9fsogggme 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 collision with ggsg5 o/)93fjh 3bwoi the floor?

  A Ping-Pong ball moving east at a speed of 4 m/s, colliw(8f*q+zn0pk v-g.g,1g bo0 arg6 w ood0fvmrdes 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 manodw(-6 *g o .8vwpqbgf0fa0+ 0gg,ormv1rzkgnitude impulse during the collision?

  Two objects collide and bounce ooki- ek -iv;kd.9in :iff each other. Linear momentum

  A 3.0-kg object moves to the right at 4.0 m/s. It collides head-on withxo 6 gzv.99 clvneh5i8 a 6.0-kg ob. lcegixn9o9 h86z5vvject moving to the left at 2.0 m/s. Which statement is correct?

  A 100-kg football linebacker moving at 2.0 m/s tacqn)xglf1:c1vw v+ hjulaoh i.1o-3 l- kles head-on an 80-kg halfbackvaci1v31u on w-q+o-: l x)h1hll. fgj running
3.1 m/s. Neglecting the effects due to digging in of cleats,

  In an elastic collision, *,oc/e(-zxl( xve 1zmu /qcfaif the momentum is conserved, then which of the following statements is trmfe(1,oql-x/(vac cez z/x u*ue about kinetic energy?

  When is kinetic energy conserve8b 9o92h,sqzshnk otf ,dnq */d?

  In a game of pool, the white cue ball hits the #5 ball and .39v04ee0 pf ghl kmlmstops, while the #5 ball moves away with the same.0 0km m9elplfh 3vg4e velocity as the cue ball had originally. The type of collision is

  When a light beach ball rollv:1g5c i foy-jk,(fhwing with a speed of 6.0 m/s collides with a heavy exercise ball at rest, the beach ball's speed after the collision hv y c1of5wj(ig:k-,fwill be, approximately,

  A golf ball traveling 3.0 m/s to the right c0;dmjbz dab. -q *m1fkollides in a head-on collision with a stationary bowling ball in a friction-free environment. If the collision is almost perfectly elq; fk1b-mzdd* jb0ma.astic, 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 elastical81jf ku8bailo *xlq-a; t: wjn5r5/hbly with an identical ball at rest. What is t-xf 5: l8uabhjwl 5 i*nbq tk18/ojr;ahe speed of the initially stopped ball after the collision?

  A very heavy object moving with speed v collides head-on with a very light objakl69 pqu:f5 bh4r cj2ect at rest. The collision is elastic, and there is no friction. The heavy ob2 :cpjb f6raqk9lh 54uject barely slows down. What is the speed of the light object after the collision?

  A very light object moving with speed v collides head-on wgxjuffc;( xb9k*)c1db 3 n8zhith a very heavy object at rest,z8ju *bfcx9b gc3nf 1d( h)kx; 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-on with a yellow ball o idy xuwd au e5:n/0cx1/b7x/b8 -p5sla ynru3f equal mass moving with a velocity of -2.0 m/swcd u u1xanrnxysub/3d5/7ix8y 5 lpb 0 ae-:/. What is the velocity of the yellow ball after the collision?

  A very heavy object mo:at: :x ,zx9 4it mi5dczr2esgving with velocity 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. Werg25: xt4:it9 m iza:,szdcxhat is the speed of the light object after the collision?

  In an inelastic collision, if the momentum is conserved, d5ntiyxfkp; ct1:rg5a m0.j(then which of the following stat(adjftxknyt i 05r.; :gp5cm1 ements is true about kinetic energy?

  Two objects collide and stick together. kg3q0zwm ck +(i*bd 7r Kinetic energy

  A 3.0-kg object moves to the right at 4.0 m/s. It collides vfl fp9k4 z/m5in a perfectly inelastic collision with 9m4 z/f 5fvkpla
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 object ruic7e o) ee:y/ut) f5experiences the larger maye )) ee5c/:7ftri ouugnitude of momentum change?

  In a game of pool, the white cue ball hrqod:o rw,ozt+)b 1b9 wtd/,pits 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 following statements1 be:av s2iio33sdk/bx +ude1 is false?k31d1da/esu 3b +ebo:si2x vi

  Which of the following is a false stw(26yfq l/we-0+cae8aa0 ijpi9 e1s j o*nj chatement?

  Tightrope walkers walk w,+al k/jb: lbioi;03p bm,pa tith a long flexible rod in order to

  A plane, flying horizontalwm 3psh9t5y 2 en0:1qc.ng*7xdjwidkly, releases a bomb, which explodes before hitting the ground. Neglecting at7migsepwnyd2 1d h *qk 50x.wjcn3:9ir resistance, the center of mass of the bomb fragments, just after the explosion

  Two cars collide head-on on a level friction-free road. The colliq 3zcc.h z8vt5vbun2 3sion was complete3 v2 h83z v.ctnucbq5zly inelastic and both cars quickly came to rest during the collision. What is true about the velocity of this system's center of mass?

State Newton's second la1wooq y27nv(f w for a system of particles.

  What is the momentum of a 2000-kg truck traveling 6/j7 bco2ukjzvn sw-.at 35 m/s?

  A 1200-kg ferryboat is moving south at 20 m/s. What is the magnitude of its mo ;b98o pnb4s kjzpt-x:ment kb9-p8;x jsp: tnz4boum?

  A ball of mass 0.10 kg is droppegb(;f2/yj :on()wndw f5vmwb d from a height of 12 m. Its momentum when it striwwf bw:bvfg(n/ 5d yn; o(m)j2kes the ground is

  Two identical 1500-kg cars are moving perpendiculakyy1 .ywc r8/jv vjh0 b:/jts:r to each other. One moves with a speed of 25 m/s due north and the other moves at 15 m/s dutrwkj0cy hvy:by.:/j sjv81 /e east. What is the total momentum of the system?

  A handball of mass 0.10 kg, traveling horizontal/f:0 iysgb cxk.vr -xim7+-yi ly at 30 m/s, strikes a wall and rebounds at 24 m/s. What is the change ins+f/-ixbgy0 .x ik- mr7 ciyv: the momentum of the ball?

  A 0.060-kg tennis ball, in;:rs5 xt4 bt wnxvw(n*itially moving at a speed of 12 m/s, is struck by a racket causing it to rebound in the opposite direction at arx(ts5nxb; vw4tw*n : speed of 18 m/s. What is the change in momentum of the ball?

  A 50-kg pitching machine (excluding the base;nkgp4 e5x z4gball) is placed on a frozen pond. The machine fires a 0.40-kg baseball with a speed of 35 m/s in the horizontal directio g;4ze4p5nkgx n. What is the recoil speed of the pitching machine? (Assume negligible friction.)

  A 70-kg astronaut is space-walking outside the space k1aa;-i 2ngkujn* r4i capsule and is stationary when the tether line bre 2nkniuai-* 1k rg4j;aaks. 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 head-on)eah( ,;lycop. nf ) wgnp6t:i a large object at rest. The small object bounces straight back with a momentum of magnitude 4.0 kgm/s. What is the magnitude of the large object's momentum chaa. w):e;n,ncphf il(o6tp)gy nge?

  You (50-kg mass) skate on ice at 4.0 m/s to greet your friend (40-)0 af8b4fnq4ckaaap o40 lvatu/b ;4ukg mass), who is sta4aof8u;a a0 )nb04tqafp v4ub/ kc 4landing still, with open arms. As you collide, while holding each other, with what speed do you both move off together?

  A car of mass 1000 kg moves to the right along av)w6 xvvu.n2x,td uy/ 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 momentum after the co )dn2xt/.ux6,vyvv uwllision?

  A 1000-kg car traveling at 25 m/s runs into the rear of a stop:s .h;cu cikyrt y-4v(4 e,nejped car that has a mass of 1500 kg and they stick togethe-hsj y4i ccry;n , .4(tv:eekur. What is the speed of the cars after the collision?

  A railroad freight car, mass 15,000 kg, is allowed to coast along a level l3 gnd 58ybf(otrack at a speed of 2.0 m/s. It collides and couples with a 50,000-kg second car, 3f b85oynd( glinitially 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 friction on a horizontae4zrxl *c ,,p:ild s3zl 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 c*s,3:delz4xp ,ilr zthe car be moving after this happens?

  A 60-kg person walks on a 100-kvywn0w d 8k8t-g log at the rate of 0.80 m/s (with respect to the log). With what spvk08dtw nw8y -eed 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 incr+an s*f95 9ou+ tz 3htzmqglz(eases to 15 N and acts for one more second. What impulse was imparte n z9q*z53oztt+ ma( l+s9uhfgd 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 the objg/dbz3j 2o1y2 pj*fojc(6+w4 i a lgrzect's change of velj*+p i/lzc6 rwy aj1dogfo g4zb22(3j ocity?

  A 2000-kg car, traveling to the right at 30 m/s, coll):rmx4)e r rgn3whaw *ides with a brick wall and comes to rest in 0.20 s. What is the average force the car exerts xr m4rgh*n rw))e :w3aon the wall?

  A 2.0-kg softball is pitched to you at 20 m/s. You hit the ball back along the sp j)m5h88* rm/pbe vosame path, 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 ba* )rj8op/5vshmem8bp t exerted?

  A 0.10-kg ball is dropped onto a table top. The speeds of the3 ntq.lq qoe7 /.lbu7md*dw3c b m/5an ball right before and right after hitting the tabl/ 7*7 t. d5ndbmua/l3no3elwmcqb q. qe 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 force exerted on the ball by the table top?

  A machine gun, of mass 35.0 kg, fires 50.0-gram s:9(5ki*jygud fc4c2xpia 0 . d0zmhdbullets, with a muzzle velocity of 750 m/s, at the rate of 300 rounds per minute. What is the average force exerted on the m(i.:cgd k0 f5h s40xmjpuz*ca iydd92 achine gun mount?

  A fire hose is turned on the door of a burning buildihf*6v h4tm.yh2 mp,uks-4cd;vds 0h cng 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 bounccy4 hh-h h2 s,6;p4smmvk d.cfut*0dve back?

  Water runs out of a horizontal drainpi*+xj2pr3jnqxrmd i+h 2o3 r uv;g2om1pe 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 force does it exert on the ground?x*1 +hj2jr+3uvro2n2xdp rm iq;g 3om

  A toy rocket, of mass 0.12 kg, achieves a velocity of 40 m/s afym5det,tyi: n .. es4ster 3.0 s, when fired st4.yt ysisd5 e em:.t,nraight up. What average thrust force does the rocket engine exert?

  Two astronauts, of masses 60 kg and 80 kg, are initially at rest in outer j 6ydcw3.69tjn(jd rispace. They push each other apart. What is their separation after jdd r9( 6j6cjn3twyi .the lighter astronaut has moved 12 m?

  A 3.0-kg object moves to the right with a speed of 2.0 m/re9w97w 9nmiz s. It collides in a perfectly elastiwnm9 rz7w e99ic collision with a 6.0-kg object moving to the left 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 i m9*gstmo n+4m/s in the +x direction makes a head-on el*si mot9n mg+4astic collision with a 0.15 kg object 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 )m68pj f4l pasinto a 1.00-kg block at rest. The bullet emerges (the bullet does not get embedded in the bllp)8ap46js fmock) 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 struck head-on by an alpha-pg5 uruml)4 h,+y t,vyj-3cjmb ,c9y cparticle (which consists of 2 protons and 2 neutrons) moving at speed v. If the collision is completely elastic, what speed will the alpmyjy+b 49gct)h y- v,p5umu,lrcc3, jha-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 of mcky- cel9l x6;ass 100 g. The collision is elastic. What is the speed of e6y9ccx l- ;kelach ball immediately after the collision?

A ball of mass 400 g moving toward the east withtxu1s8kh/m ar+ .vkx 0 a speed of 3.70 m/s collides head-on wi0u.kx hva81mr sx/k+tth 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 collides hervn v5+ot.f2:h uy:5p0zrah oae5 bg 0ad-on with a 3.0 kg mass at rest. If the collision is perfectly inelastic, what is the speed of the mar + ouaa hvre0t0g:.55f:vb5nyp zo2hsses after the collision?

  A 2.0-kg mass moving to the east abhh(7t- u4t p ek:r-y1*anh wgt a speed of 4.0 m/s collides head-on in a perfectly inelastic collision with a stationary 2.0-kg mass. How much kitre*hhn -g4(h p ta17-u: wkbynetic energy is lost during this collision?

  A car of mass m, traveling with a velociz)j erez+p+(y(tv c(sty v, strikes a parked station wagon, who's mass is 2m. The bumpers lock together in this head-on inelastic collision. What fractivs)ey( tzr(cej( z+ p+on of the initial kinetic energy is lost in this collision?

A 15-g bullet traveling 213 m/s in a vertical direction buries itself in a 2.4-t,+edmuo*p6wc qw4 5rkg block of wood a rest directly above it. As a result, the bullet/block cod 6p+twewoqc *,umr 45mbination 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 travelin3 pwt+r7s j+mag at 90.0 km/h east collides with a 3000-kg car traveling at 60.0 km/h south. Thew7+a p+tjrsm 3 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 vto zo+ sr,jq 7uk6qck,z6;u)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 directionrq,k7+) s uq6uzz t,c v6;ojok of motion of the cars after collision?

  Two objects move on a level frictionless surfk3cat.cfo- j2ace. 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. o f2.-ac tc3kj What is the magnitude of their combined momentum after the collision?

  A small bomb, of mass 10 kg, is mov-n2eb -qaom:u ing 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. Wh-u eon2-q bm:aat 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 = + 21.0 m. W z 9g.mx0w5f 7:qffzvw88 jwsahere is the center of mass on the x-58j0z.wf:9 g8qwfa 7svw fz xmaxis?

  The center of mass of a two-particle system is at the origin. One particle j4jakjcn 6nbvr946szhl+/o; 1pg 3 nlis located at (3.0 m, 0) and has a mass of 2.0 kg. Whan;g ln14bjzakoj9 shjc6n43pl+ rv/ 6t 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 (2.0, 0), atmo+ ./qrqj(d wm20ixnd 4.0 kg at (2.0, 1.0). q d 2jxr0om/wqi.mt(+Determine the coordinates of the center of mass.

  Three masses, 1.0 kg, 2.0d8kzs 0p7qud0 kg, and 3.0 kg, are located at (0, 0), (1.0 m, 1.0 m), and (2.0 m, -2p800qdsu 7d kz.0 m), respectively. What is 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 (1fyxom 16s- 8uj2, 0). What are the coordinates of a 4.0-kg mass which will result in the center of mass u6xo -fm1 ys8jof the system of three masses being located at the origin, (0, 0)?

  Use Table 7-1 to calculate the position of the CM of a whole leg including t.n -n-visgus3 he foot when the leg is stre-.s-i3g nv suntched straight out. Assume the person is 1.60 m tall.