What is the SI unit of mom+ l/ki-uh zuy( k*q-tyentum?

  When a cannon fires a cannonball/ jk :s5prr-yk, the cannon will recoil backward because the

  A freight car moves along a frictionless level railroad track at constant sp: za uotvib,: hbg1a-3eed. The cazvo:g1t -hi,3ba b: uar is 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 sleddingnike+ ea w102j0srs-k on frictionless ice. What happens to the velocitsree1- sak00w+jn k 2iy of the sled?

  A rubber ball and a lump of putty have equal mass. They are thrown m;c ,ean hw)2n*pxsw7 4mgc e,with equal speed against a wall. The ball bounces back with nearly the same speed with whicmn7eh4 se),;cwcn 2gmpa w,*xh it hit. The putty sticks to the wall. Which objects experiences the greater momentum change?

  A sailboat of mass m o6v vu(g0pk )tr*9i agf0ojh(is moving with a momentum p. How would you represent its kinetic energy in terms of theu*0 0go v 96f (hrpjogi(kat)vse two quantities?

  If you pitch a baseball with twice the kin/n/dxkrr9im( 5 dqdenm*oxr.n) 76fi jd.rf (etic energy you gave it in the previous/rkmefn*.nii() j df5d 7/xm9rrxod. n( q6rd pitch, the magnitude of its momentum is

State Newton's second law in terms of moo.uxmnetbl )qg: f8z e44x 1:ymentum.

State the law of conservation of mo7i3w0sydxtyu 6hxe 0 7mentum.

  The area under the curve on a Force ve.vh:xw i6*txm* foa2f(/n ba ersus time (F vs. t) graph represents

  Which of the following is an accurate g6s z z8e61qr c9uajl9statement?

  A small car meshes wixu,h vq z3)6ia- nzpp9th a large truck in a head-on collision. Which of the following statements concerning the magnitude of the av , a6ivhqxz-u9p pz3n)erage collision force is correct?

  Two equal mass balls (one red and the other blue) are dropped*ln orhf6x;-81vzl ok from the same height, and rebound off thv1oohl*z k nr-;8fl6xe floor. The red ball rebounds to 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 speed of 4 m/s, collides wihhw-xn0: 6dg0v bg/fwth 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 mvd6whgxf-w 0 hb0: g/nagnitude impulse during the collision?

  Two objects collide and bounce off each othersuzaut c(vv52/x nmolm q*8w0e x 2)/w. Linear momentum

  A 3.0-kg object moves to the right at 4.0 m/s. It collides head-on with a 6ep/hb+,i3 w 2mud(c dp.0-kg object moving to the left at 2.0 m/s. Which stateme(u+dhipm wce/bp,3d2 nt is correct?

  A 100-kg football linebacker moving at 2.0 m/s tackl nb18 l+r n 7m4yp-nn+w ilet5yt+g3vmes head-on an 80-kg halfback runnne m8rn l3igp1nvt+t74 -ym l+wyb+5ning
3.1 m/s. Neglecting the effects due to digging in of cleats,

  In an elastic collision, if2d3hwd.ea97t p qc w/a the momentum is conserved, then which of the following statements isth3 wd a.pqcd/e w927a true about kinetic energy?

  When is kinetic energy conserveby:m:w p,z4hed?

  In a game of pool, the white cue ball hits the #5 ball and stops, while the #5upo:yt1 h*3k z ball moves away with the same vel1tyz:o* puh3k ocity as the cue ball had originally. The type of collision is

  When a light beach ball q9cso jwr.mp r 43px.8rolling with a speed of 6.0 m/s collides with a heavy exercise ball at rest, the beach bajw8 rrx4p.s9 c3pom.qll's speed after the collision will be, approximately,

  A golf ball traveling 3.0 9*(8 q1bt7 c4rpjfvbavk nwq0m/s to the right collides in a head-on collision with a stationary bowling ball in a friction-free environment. If the collision ip wk0cv 1*t7fbqj n(qvb8a r94s 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 head-on ela z4 ;4pl es/v3.x(dewm;hamszstically with an identical ball at rest. What is the speh dm;.4ezlsvasm (3w; /pxe4 zed of the initially stopped ball after the collision?

  A very heavy object moving with speed v collides head-on with a very;:wa qm(b,jgd light object at rest. The collision is elastic, and there is no friction. The heavy object barely slows down. What is the speed of the light object mg ,wbqdja(; :after the collision?

  A very light object moving with speed v collid6s l,y x/mpjn,es head-on with a very heavy object at rest, in a frictionless environment. The collision ispx,l6sj/n ,ym 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 of kitufgah89 /3v3 cic0n15hcsq1f1 uk equal mass moving with a velocis33i5ctf1ukc1k1 vfau /c 8 q90nh ghity 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 very light ob;j*/ziu1flqdcfllgwsi . b q 9/cn519ject 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 object after the cfglqwi/l dzfcus*./jl5q;c1 9 9bn i1ollision?

  In an inelastic collision, if the momentum is conserved, then which of the byg:.qecfvoku3 /4 (qfollowing statements is true about kinetic energy?y:o3u (qvg.4qkecb/f

  Two objects collide and stick together. Kine+l f8, q7 fjijn; npy0freop-9tic energy

  A 3.0-kg object moves to the right at 4.0w89 *puozp2 ii m/s. It collides in a perfectly inelastic collision wi9ipo8*wzip 2uth 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 larcpct1r dw4tgca5/p09 ge object and sticks. Which object experiences the larger magnipd c rt1tp4 5wc/ag0c9tude of momentum change?

  In a game of pool, the white cue ball hits the #9 ball and is deflected at aic3rn57aqp s0 $35^{\circ}$ 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. W 35mdv dli mt a/ bp2y+l l68rykb5:d;1ktp7ythich of the following statements is false? 6rt 7d15 :idt2bl b pm+al3kyl;vpt8yd5y k/m

  Which of the following is a-7y0s- a 9w.jqene c/;a bpteq false statement?

  Tightrope walkers walk with a long flex8+ iy at6 *zbj3s1uvfaible rod in order to

  A plane, flying horizontally, releases a bomb, whicizl./qm6k48gxn xp3p 3a )adch explodes before hitting the x 4g/ni6a)p83q3. k mdlaxcpzground. 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. The collision wnygxs7 s j:zuh+8b, :ias completely inelastic and bo ibs y+:7ngz,uj8h sx:th 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 law for a sy4il a s:oa 8;ozcyx)(pstem of particles.

  What is the momentum of a 2000-kg truck trartlhl ,t5 wpy2 (zakz6h+5zc -qila. 2veling at 35 m/s?

  A 1200-kg ferryboat is moving south at 20 m/s. What is the 0:du,x-d8z/pzzg svm aifp4 -magnitude of its momepdzs v-0i4dp /g-uxm f:azz,8ntum?

  A ball of mass 0.10 kg idd:z8ey ya./ys dropped from a height of 12 m. Its momentum when it strd.d8y zy ye:a/ikes the ground is

  Two identical 1500-kg cars are moving perpendicular to each othe 5hhyx e5pho5 x1rqr*. f0h:eur. One moves with a speed of 25 m/s due north and the other moves at 15 m/s due east. What is the tup5e5fh0 1*xo.5qhherr h xy:otal momentum of the system?

  A handball of mass 0.10 kg, traveling horizontally at 30 m/s, st:1ume0 f,anues c1ld y-7 whx+rikes a wall and rebounds at 24 m/s. What is the change +esxdwc,ma7 h:0 1-1l ufyenu in the momentum of the ball?

  A 0.060-kg tennis ball, initially movfmn7hbp0ou4 nl2/ 8 zping at a speed of 12 m/s, is struck by a racket causing it to rebound in the opposite dnp 4fpo7 0/bm2 uzlhn8irection at a speed of 18 m/s. What is the change in momentum of the ball?

  A 50-kg pitching machine (excluding the baseball) is placed on a frozf jrj+9e alfmw)wr/ , :+w(3*s mqowauen 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 f3asue (j/ oml rww+9:a*q +wrjf ,m)fwriction.)

  A 70-kg astronaut is space-wnrf om dtj4i pxim/n 1f+ih +bl/(kgj,q(,h ,8alking outside the space capsule and is stationary when the tether line breaks. As a means of returning to the capsule he th+g+(j i1, ipjfhqf ,,bk(d/mrthl n/x4nim 8 orows 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 3vdoa+cgumqdvsy; fwy):t77cbq51 * momentum 5.0 kgm/s approaches head-on a large object at rest. The small object bounces straight back u*:as5;yt7v3w 7 mc q 1dfcvogyb)dq+ with a momentum of magnitude 4.0 kgm/s. What is the magnitude of the large object's momentum change?

  You (50-kg mass) skate on bba0b4v,k k*ptu;9e fice at 4.0 m/s to greet your friend (40-kg mass), who is standing still, wukkev;p4 a9bb0b f, t*ith 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 aer*44fgaf sg;d-i- pa 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 pfa; -gdfgsa *r4e- 4itotal momentum after the collision?

  A 1000-kg car traveling at 25 m/s runs into the rear o,b b hy4xgue2hr9u t-e6uxb9-f a stopped car that has a mass of 1500 kg and they stixu9 byrx-t2 b,gue6 -9bh uh4eck together. What is the speed of the cars after the collision?

  A railroad freight car, mass 15,000 9hmr 0pzfq (m ciktt+;wyf i326+ -eskkg, is allowed to coast along a level track at a speed of 2.0 m/s. It collides and couples wit (yh2 rf0qmkcm epzs+9tti-k+if;6w3 h 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 a hormy u:s r ;,jby;1ilm6mizontal 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 farb ;1yy j, :msl;m6umist will the car be moving after this happens?

  A 60-kg person walks on a 1h1f.aindfi dc 1 u0x;;00-kg log at the rate of 0.80 m/s (with respect to the log). With what speed does the log move, with respect to t1.dif d;ah0fx1cnu; ihe shore?

  A 4.0-N force acts for 3.0 s on an object. ( 2;ebag -5;okd td6kclzs vb-The force suddenly increases to 15 N and acts for one more second. s 6(5 2v;atbb;-ed-czgko dklWhat impulse was imparted 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 s.oqs-4kg; dg mt,f 7gthe object'sk4d; g,ms g.sq7 tg-fo change of velocity?

  A 2000-kg car, traveling to the right at 30 m/s, collid aix;gm) )ynwp)y .v:ges with a brick wall and comesa: )xpmg ))gywnv;i .y 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 20 m/s. You hit the ball bac fi6 rf8n))g *o)n2vo0wq gj:l v1jslwk along the same path, and at the same speed. If the bat was in contact with tgv)w6f8l:fnsg*ji0)o j vo nl12)q rwhe ball for 0.10 s, what is the magnitude of the average force the bat exerted?

  A 0.10-kg ball is dropped onto a2t5ppj/dn:g *d rtklo 8, g:dxafy *v. 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 an gxg/ dpvy5. tdj: tar*np8:, ldo*fk2d 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-gra4f r9ppxw1v nb /b45 zyt,ca/mm bullets, with a muzzle velocity of 4w// b1vry 4btn f pzpm,x5ca9750 m/s, at the rate of 300 rounds per minute. What is the average force exerted on the machine gun mount?

  A fire hose is turne9 zhu3wwrk0i; d on the door of a burning building in order to knock the door down. This requires a force of 1000 N. If the hose delivers 40 kg p 9zriww3 h;ku0er second, what is the minimum velocity of the stream needed, assuming the water doesn't bounce back?

  Water runs out of a horizontal drainpipe at the rate of 120 5hzxm ve( yr/+kg per minute. It falls 3.20 m to the ground. Assuming the water doesn't splash up, what average force does it vz+r ehm x(5y/exert on the ground?

  A toy rocket, of mass 0.12 kg, achiei ierv*+tv e8fl52t2e+b eb3mves a velocity of 40 m/s after 3.0 s, when fired strr22e3tl+ev i5* e8 bvbeitfm+aight up. What average thrust force does the rocket engine exert?

  Two astronauts, of masses 60 kg and 80 kg, are inibxn7o4,zae nokzbp/; g :p t(6tially at rest in outer space. They push each other apart. What is their separation after the lighter as:;4ntn, p g6x7a(zeb /p okboztronaut has moved 12 m?

  A 3.0-kg object moves to the right with a spi etdh 1pq:lr.wxm.78,) cf sgeed 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 is the total kinetic energy after the lcs .e,:qm)1x rhp tdg.wi87fcollision?

  A 0.10-kg object with a velocity of 0.20 m/s i :q+dqgob2 +yzn the +x direction makes a head-on elastic collision with a 0.15 kg object initially at rest. What is the final velocity of the 0.10-kg object after collis+zqd:+bog2 qy ion?

  A 10.0-g bullet moving at 300 m/s+ i4bbo w )usst07 isu)nu,o;y is fired into a 1.00-kg block at rest. The bullet emerges (the0b)i+ ,w ys74t o;iunsosu bu) bullet does not get embedded 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 restaph 3)kc-qb-b7t5z w h, is struck 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 speekzbth w p q-)5ab-hc37d 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 hea 2f6m 5 i02k4cnyd/jfgkyl /awd-on with a stationary ball of mass 100 g. The collision is elastic. What is the n/dyck 2y 4 0 ffgwj6i2/5mklaspeed of each ball immediately after the collision?

A ball of mass 400 g moving toward the east with a speed of 3.70 m/s collides obc;4(q0 c smf:m3 lc,n5-egtg 6isxv p;f ek:head-on with a 200 g ball sitting at rest. The collision is pvcp :fs65;oic c3nqbx;(ls:,mfm e0 -t 4gekgerfectly 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 s+w w6a.x;46nwp x,mpr y/bwqipeed 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 of the p bn.4qwxyx wmw;pr6w /+i,6a masses after the collision?

  A 2.0-kg mass moving to the east at a speed of 4.0 m/*,4 c0dbxxhhw9ezdh8/4v koi s collides head-on in a perfed ec,0k944*bvw /8 xhho xihdzctly inelastic collision with a stationary 2.0-kg mass. How much kinetic energy is lost during this collision?

  A car of mass m, traveling with 2; r *tubs1ppva velocity v, strikes a parked station wagon, who'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? b*;rpp1 2tsuv

A 15-g bullet traveling 213 m/s in a vertical direction buries itself in stw5pn.65(odlv lji 0 a 2.4-kg block of wood a rest directly above it. As a result, the bullet/o. t0j (is 56vl5lpdwnblock 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 collides with a 30wc4 s5by46ces 00-kg car traveling at 5wy4bs4e6scc60.0 km/h south. The two cars stick together after the collision. (See Fig. 7-1.) What is the speed of the cars after collision?

  A 1500-kg car traveling at 90.0 k4nd ec 3a+iydos/5+dkm/h east collides with a 3000-kg car traveling at 60.0 km/h south. The two cars stick together after the collision. (See Fi a4se5oy d++kn/ic3 ddg. 7-1.) What is the direction of motion of the cars after collision?

  Two objects move on a level frictionless surface. Object A move 65 zh1ij+w :s.tx-pyecm7 bq.nd3rces 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 the colliszc. 5ci :tn.q+y ps7rebm j-3 6exdh1wion?

  A small bomb, of mass 10 kg, is moving toward the North with a velocity of 4.0 m5ve+ d2w3en6bnpxb 9a /s. It explodes into thr+ 6e x95b2v3baenw dpnee 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 the u4an g2j/p9n na+.kakk:fa2m7; o q xworigin, and a 10.0-kg mass sits at x = + 21.0 m. Where is the center oa:k. ;pau2a9xknq/k wn+ma7n2g 4j fof mass on the x-axis?

  The center of mass o,ypn e.bn ;-p) c7+ygib*twfvf a two-particle system is at the origin. One particle is located at (3.0 m, 0) and has a mass of 2.0 kg. What is the locatip;7ybvfnng*.y, -bi )e+t c wpon of the second mass of 3.0 kg?

  Three masses are positioned as follows:wginx.1q *tt 5 2.0 kg at (0, 0), 2.0 kg at (2.0, 0), and 4.0 kg at (2.0, 1.0). Determine the coordinates of the center wtgnt.xi 51*qof mass.

  Three masses, 1.0 kg, 2.0 kg, and o;uo qoe)ro,srd4 ,y3 3.0 kg, are located at (0, 0), (1.0 m, 1.0 m), and (2.0 m, -2.0 m), respectively. What is the location of the center of mass of tru; rqo,o4eyd,o) 3sohe system?

  A 3.0-kg mass is positioned at (0, 8.0), and a 1.0-kg mass is positioned atnw 4bdf h7li3(ih.y d) (12, 0). What are the coordinates of a 4.0-kg mass which will result in the center of mi(b . nidwfd7 4lhy)3hass of the system of three masses being located at the origin, (0, 0)?

  Use Table 7-1 to calculate the posit 49sid tg(d.0f2yh hkje)gi+dz+ sw: hion of the CM of a whole leg including the foot when the leg is stretched straight out. Assume the person is 1.60 m t)g jdsf+02dgk9. ( s+:iz4hetiw dhhy all.