What is the SI unit of momentumorcz8/t7me+y ?

  When a cannon fires a cannonball, the cannon will recoil backward beca) hx omq66+w,qzsh,z jbps;u- use the

  A freight car moves along a frictionless level railroad track at constant sp hs.c,,o1z jyfeed. The car is open on top. A large load of coal is suddenly dumped into the car. What happens tos.c1hfo j,yz , the velocity of the car?

  A child falls sideways off h)8 xw5krt3:ouehsc lu8 9xd 0c8j tf6a sled while sledding on frictionless ice. What happens to the velocity of the x9orjxuc3 8l6) dckth0u 8: 8wts5hefsled?

  A rubber ball and a lump of putty have equal mass. x9ttl9q*exs 8 They are 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 experiences t8tlxxsqe * 99the greater momentum change?

  A sailboat of mass m is moving wye-8ps82yb amith a momentum p. How would you represent its kinetic energy in termy8measy 2 8-pbs of these two quantities?

  If you pitch a baseball with twice the kinecc c dv:)t9gb- )bbqv,tic energy you gave it in the previous pitch, the magnit,vdb: cc9gct)v b- )qbude of its momentum is

State Newton's second law inq pc rc9,r5m+t terms of momentum.

State the law of conservation of momen9j+ m r fa9vnm.p5w)ey)mss5qtum.

  The area under the curve on a Force versus time (F vs. t) graph represe c7.jxklds:d 8nts

  Which of the following i w*s.4y4h (su *tkd*w 10asbzplyos,ws an accurate statement?

  A small car meshes with a large truck in a head-on collision zoed zpn55,vq1mm-j-d yqk ++. Which of the following statements concerningq y+qz jvnm- eo5z+ -ddk51m,p the magnitude of the average collision force is correct?

  Two equal mass balls (one red and the other blue) are dropped from the /wu *1gm1lybesame 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 the fgb y/l eu1wm1*loor?

  A Ping-Pong ball moving easry/*k nwiu w-8t at a speed of 4 m/s, collides with a stationary bowling baywu8kn *i/rw- ll. 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 collision?

  Two objects collide and bounce off each other. L8fo3rkn. ge-*myzj9 f inear momentum

  A 3.0-kg object moves to the right at 4.0 m/s. It collides head-on ty bii(,z;q*:fg.ih dwith a 6.0-kg object movin:zqi tgidyi (; ,bh.f*g 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-gx 1) gqe6ef8kon an 80-kg halfbackegg)q86 e1 fxk running
3.1 m/s. Neglecting the effects due to digging in of cleats,

  In an elastic collision, if the mome3sdm ,c6pojmg 898ufc1 4fappntum is conserved, then which of the following statemcdcppgmf198muf aj ,s6834opents is true about kinetic energy?

  When is kinetic energy cooc9 :j1*sa/ (z jetpvynserved?

  In a game of pool, the white cue ball hits the #5 qekxz-nhg))j h ( tehb-,l/7m ball and stops, while the #5 ball moves away with the same velocity as the cue ball had originally. The type of collisioh m,qhlh(7xz -gte)nj /ke )-bn is

  When a light beach ball rolling with a speed of 6.0 m/s collides with y+fz g-w-ab+ea heavy exercise ball at rest, the beach balbegyw+-a-z f+ l's speed after the collision will be, approximately,

  A golf ball traveling 3.0 m/s to the right collides in a lex3g8ygn 7p (+ms;synynh1jp6 /tr( head-on collision with a stationary bowling ball in a friction-free environment. If the collision is almost perfe7;p+xy( 8g/m s(r3g 1yntjsehy6 pl nnctly elastic, the speed of the golf ball immediately after the collision is

  A rubber ball with a speed of 5.0 m/s colq)s:,avpv4wa ugz5-dc4*aw k lides head-on elastically with an identical ball at u w4vpz -w5*asaqg 4 dcvk,)a:rest. What is the speed of the initially stopped ball after the collision?

  A very heavy object moving with sncc5yuv bv /pipl 0010peed v collides head-on with a very light object at rest. The collision is elastic, and there is no friction. ilny0vc 1cp0 /p5ubv 0 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 co gz1*knpjv- .qqrc7 2fllides head-on with a very heavy object at rest, in a frictionless environment. The collision is almost perfectly elastic. Th-2 qr7 *qvzn.cj gk1fpe speed of the heavy object after the collision is

  A red ball with a velocity of +3.0 m/s collides head-on w7;4(wpa dft3ltwg; fi ith a yellow ball of equal lt wi4w;dg3t(; ffa7 pmass moving with a velocity of -2.0 m/s. What is the velocity of the yellow ball after the collision?

  A very heavy object moving with velocity v collides head-on with a veryr:u t./ rqkfb4el6mb.ks)q .l light object moving with velocity -v. The collision is elastic, and there is no friction. The heavy object barely slows down. What is thkr rfq.m.blte:su )l6kb4q /.e speed of the light object after the collision?

  In an inelastic collision, i5vc( e iv3hsb5p3- ujdf the momentum is conserved, then which of the following stats5c (3jvh3b v -ue5dipements is true about kinetic energy?

  Two objects collide and st** ik*oh rwgbm3 -rx,rick together. Kinetic energy

  A 3.0-kg object moves to the right at 4.0 m/s. It collides -lttfcj57+ p x 9zhqwqk8)re/ in a perfectly inelastic cor xh-je/ 87qtw59p cflq) z+tkllision 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 and sticks. Which object experirfjv 86*l9vbhw4p4ci tb0 +syences the larger magnitude of momentum b86p +wr 09 lfsi4vy4ct* hjbvchange?

  In a game of pool, the white cue ball hits the #9 ball and is deflected at,2eoog,e0h sq 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 mas.oi oo.e8e hw1ses, M and m. Which of the following statements is falseo ioo .1hewe8.?

  Which of the following is a false stad1h:o3gf zm9n tement?

  Tightrope walkers waamu -v*zshf2 n:-t5gw; iqj2ylk with a long flexible rod in order to

  A plane, flying horizontally, r2bddbq1( nfa;y)ll4w) rgt 7releases a bomb, which explodes before hitting the ground. Neglecting air resistance, the center of mass of the bomb fragmentg4(yab1l)f2 r 7wrdbld q) ;nts, just after the explosion

  Two cars collide head-on on a level friction-free0lhk711fma:mn :; kybqsa ;pv road. The collision was completely inelastic and both nh7 1 ;lbpaa;smkf1mq0:y :kvcars quickly came to rest during the collision. What is true about the velocity of this system's center of mass?

State Newton's second law for a system of partiqjmqruaz rj)v/1. ,1un lp:-c cles.

  What is the momentum of a 2000-kg truck traveling at 35 m 493ljr0a x xke)-ocrypj x2u2/s?

  A 1200-kg ferryboat is moving south at 20 m/s. What is the magnitudew7 ak:hpq. ::v7cvs4s a iw1sh of its momenh4 s w p1sa:cqa::k7.i7 vwhsvtum?

  A ball of mass 0.10 kg is dropped from a height of 12 m. Its momentum when it fm) l;wpq26uystrikes the grounqyu)2wm 6 flp;d is

  Two identical 1500-kg cars are moving perpendicular to5.)kbl q 1o6fr me)pso each other. One moves with a speed of 25 m/s due north and the other moves at 15 m/s due east. What is the tp1f6se)bk5mr )lo qo .otal momentum of the system?

  A handball of mass 0.10 kg, traveling horihd05vnx,1pnu zontally at 30 m/s, strikes a wall and rebounds at 24 m/s.nvx1uhd5pn ,0 What is the change in the momentum of the ball?

  A 0.060-kg tennis ball, initially moving at a speed of 12 bq23z lbt j.mb+a )(dim/s, is struck by a racket causing it to rebound in the opposite direction at a speed of 18 m/s. What is the change in momentum of the bz b ijb 2b(l.q3a+)tmdall?

  A 50-kg pitching machine (excluding thu 2q *2wfjrc z.3ihuqk 3yf:l1e baseball) 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 recojuz21fuci3 fq r*qhk w2 3.l:yil speed of the pitching machine? (Assume negligible friction.)

  A 70-kg astronaut is space-walking outside the space capsulego:wj0u j3b6xnrm)3t q90ccw 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 aojmc)xq3 6 jb0 :ngtwr39c uw0 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 a large ohf hks0+m07 0gh6jon uf-krh6bject at rest. The small object bounces straight back with a momentum of magnitude 4.0 kgm/s. What is the magnitude of thkghs 0ohfhu0- j+fkhr6m7 60ne large object's momentum change?

  You (50-kg mass) skate on ice at 4.0 m/s to greet your friend (40-e3d rayl7: a nxd/)z5ukg mass), who is standing still, with open arms. As you collide, while holding each other, with what speed do you both x) ry uzea3dl/5:a 7dnmove off together?

  A car of mass 1000 kg moves -sdpx06fe kols4 qzr-wh83y *to the right along a level, straight road at a speed of 6.0 m/s. It collid4h8sx-sz-f*y06 ke or w3 qlpdes directly with a stopped motorcycle of mass 200 kg. What is the total momentum after the collision?

  A 1000-kg car traveling at 25 mm/r hqyz(ijpc01 lorl 2:2at0/s runs into the rear of a stopped car that has a mass of 1500 kg and they stick together. W2 hpa0 rq:r1ty(ml2i j0l/cozhat is the speed of the cars after the collision?

  A railroad freight car, mass 15,000 kg, is allowed to coastvji42h( .xytd along a level track at a speed of 2.0 m/s. It collides and couples with4yitvd( hx.2 j 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 friction on i9 u+hik) h5yna 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 after this hykh5u h9i i)n+appens?

  A 60-kg person walks on a 100-kg log at the rate of 0.80 /5xb6ha .el;ln;w 0xv vs7xhdm/s (with respect to the log). With what speed do lex l 50dx/a;s.vn 7hxbw6;hves the log move, with respect to the shore?

  A 4.0-N force acts for 3.0 s on an object. s-,yd)tyuf,s+crvur/ sn :t+ The force suddenly increases to 15 N and acts for one more second. What impulse was imparted by these forceyr+usr,-v)fs ct :du /+n s,yts to the object?

  A constant 9.0-N net force acts for 2.0 s on a 6.0-kg object. What is the oban:l4o.li)xw ject's change of o:la. x4lin)wvelocity?

  A 2000-kg car, traveling topnj1m- el+ms4 the right at 30 m/s, collides with a brick wall and comes to rest in 0.20 +ml14 s pnemj-s. What is the average force the car exerts on the wall?

  A 2.0-kg softball is pitched to you at 20 m/s. You hit the ball back along the gk t*i.z2ast wx7xa1 + 35cgyksame path, and at the same speed. If the bat was in contact with the ball for 0.10 s, wxs1i w2 * .g c3g5t7yzaaxtkk+hat is the magnitude of the average force the bat exerted?

  A 0.10-kg ball is dropped onto z99zbb5 uhozxv x 362la table top. The speeds of the ball right before and right after hio9 3b vhz5xu9l bzz6x2tting 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 force exerted on the ball by the table top?

  A machine gun, of mass 35.0y ldmp l;/wt10q3f-dt kg, fires 50.0-gram bullets, with a muzzle velocity of 750 m/s, at the rate of 300 rounds perldym0-q3 f td/1p tl;w minute. What is the average force exerted on the machine gun mount?

  A fire hose is turned on the door of a burning building in order to knock th fjz3pae:f vzf)g.5k1e door down. This requires a force of 1000 N. If the hose delivers 40 kg per second, what is the minimum velocity of the str5v.z)j 3fz:1k pfafe geam needed, assuming the water doesn't bounce back?

  Water runs out of a ho o, c21jjwe9glcyf85srizontal 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 force does it exert jfecsl1jo c2985g,w y on the ground?

  A toy rocket, of mass 0.12 kg, achieves a ve fvvhmks 7 6/i1 +ze)y5-m7 8pqtltvwtlocity of 40 m/s after 3.0 s, when fired straight up. What average thrust fo z7im tty1 6-wvps/8 elq+)m5 tv7kvhfrce does the rocket engine exert?

  Two astronauts, of masses 60 kg and 80 kg, are initially at rest in outer spuxz-5d4ocyd8s x4it .z1.aix ace. They push each other apart. What is their czio-ia5 .1.84ux zddtx x4syseparation after the lighter astronaut has moved 12 m?

  A 3.0-kg object moves to the right wit.t3+iyx57 hvdb2 ekbs rb iq)6h a speed of 2.0 m/s. It collides in a perfectly elastic collision with a 6.0 y x2+kdvqib675etb)b3ihs r .-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 m/s in the j9a3e))nyklf+x direction makes a head-on elastic collision with a 0.15 kg object initially at restk)y)f le9ja3n . What is the final velocity of the 0.10-kg object after collision?

  A 10.0-g bullet moving at ;;gby5f j ldaj3ng76 b300 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 is the velocitybj6g jyan;b3g f5l7;d of the block right after the collision?

  A proton, of mass m, at rest, is struck head-xwc23 :v.ayk6-ji hs ron by an alpha-particle (which consists of 2 protons and 2 neutron i 6rj- xk3wvc2sayh.:s) moving at speed v. If the 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/so;ars r. +q1hmjy hx,, collides head-on with a stationary ball of mass 100 g. The collision is elastic. What is the sxr ,m1+ rs.hayqojh ,;peed of each ball immediately after the collision?

A ball of mass 400 g moving toward the eastbxp 8) ukz2tx9w5mq69c zx q;z with a speed of 3.70 m/s collides head-on with a 200 g ball sitting at rest. The collisib9)5zt;xckqz29 p 8xuz6m qwxon 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 witle9s-87 ao+tp:j4kolz uzo0 x h a speed of 5.0 m/s. It collides head-on with a 3.0 kg mass at rest. If the collision is perfectly inelastic, what is the speed ofzoo -+auk48elot x l7:z0js9p 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 axwysd4u6 0pt- perfectly 4su6-xt d0 pywinelastic collision with a stationary 2.0-kg mass. How much kinetic energy is lost during this collision?

  A car of mass m, travelim1 b ww2j7uh(e ksf18fng with a velocity v, strikes a parked station wagon, who's mass i7jwhf2k sm ewb(uf8 11s 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/w-h7 fvpvba.jo h86 k a vertical direction buries itself in a 2.4-kg block of wood a rest directly above it. As a result, th-h /vwf6o kjva 8p.hb7e 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 km/h east colu; a-:ltzevl v:kzt4ek in* *,lides 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 cars after collision?v l*k;lz, t:n:vez *aueti k-4

  A 1500-kg car traveling at 90.0 km/h ejxdlk)uv4r h 0) -me9dast collides with a 3000-kg car traveling at 60.0 k40hreujx -dkd ) lvm9)m/h south. The two cars stick together 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. Object A moves yvwq8b/9 ufp v *qv*d0east 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 combwvf /b0 8y*9dq*uvvqp ined momentum after the collision?

  A small bomb, of mass 10 kg, is movinu5 r/kif)tqhu21g,di g 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 iru5),2qu fikt1h dg /of 1.0 kg. What is the velocity of the third fragment? (Neglect air friction.)

  A 4.00-kg mass sits at thew lk+4ykhb8.e ae* z2c fwae/ 8fpl8s) origin, and a 10.0-kg mass sits at x = + 21.0 m. Where is the center of mass on the 4f )s8.a pwyl*8e2/lfec+bzw8 ekka h x-axis?

  The center of mass of sjcrug.+ i3p 5a two-particle system is at the origin. One particle is located gupc ir5+s3j.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 bj4z p /h+dk +d(y/g(priwk3ufollows: 2.0 kg at (0, 0), 2.0 kg at (2.0, 0), and kp/+4(d3wd(rb jzuk+ iy phg/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 located at (0, 0), (1.0vy)om3b w71 (n 1yprito/t2wp m, 1.0 m), and (2.0 m, -2.0 m), respen)(2p3pyt wmy1 b/7oiwv1tr o ctively. 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 f m7-fhphjecp68 l2)o is positioned at (12, 0). What ar-e6f 7ppm 2 8lhjohcf)e 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)?

  Use Table 7-1 to calculate the position of the CM of ai9(i;7 qpql6d1wn7 fr dv xaf8 whole leg including the foot when the leg is stretched straight out. Assume the person is 1.60 mdia(9d;fpqfwq17in x r 7v68l tall.