What is the SI unit o*n; kzv dq2m2rf momentum?

  When a cannon fires a cannonball, the ca,o-ymx8)b tfqnnon will recoil backward because the

  A freight car moves along a frictionless level railroad track at constant speedzcbab9kcy 3giq;vyn)*3e r/ xkp 2 s,7. The car is ope7bzs,by9 c3kek3)a;r i/q 2yvp* nxgcn 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 sledding on foy/(tb6 uou;h3 ur4tkrictionless ice. What happens to the velocity uurbyh3o64/ott; uk( of the sled?

  A rubber ball and a lump of putty have equal mass. T (d ,1verq1rqqhey are thrown with equal speed against a wall. The ball bounces back with nearly the same speed with which it hit. The puvqd(, r1 rqq1etty sticks to the wall. Which objects experiences the greater momentum change?

  A sailboat of mass m is moving with a momentum p. How woulenj7t ;-7; txcx;xb,vgmom-a d you represent its kinetic energy in terms of these two quantittjb;x7ma g7x,vx-e- c;no m;ties?

  If you pitch a baseball with twice tt:: yi s7:kup1wybi.my q*e8hhe kinetic energy you gave it in the previous pitch, the:y.7su *e8mky 1:iyh pq wb:it magnitude of its momentum is

State Newton's second law in termskmj ++c s2grv4 of momentum.

State the law of conservlt w94i 4uuhh.y(lqh 9ation of momentum.

  The area under the curve on a Force versus time (F vs. tzx8 he8.afq ; j+j7th3oe qux.) graph represents

  Which of the following is an 2j 6 xamph8 38mcw,66 yy-dlzums ndo/accurate statement?

  A small car meshes with a large truck in a head-on collision. Which ezxc g32h8 u-6s;neq pof the following statements concernuz-h e8scq2;ne3g 6x ping the magnitude of the average collision force is correct?

  Two equal mass balls (one red and the other blue) are dropped from the same ht*yfc j *xf4 ez*-;vsjzrb33p eight, and rebound off the floor. The red ball rebounds to a higher position. Which ball is subjected to the greater magni-cx3*4rtbj3 yv *pff*zj es z;tude of impulse during its collision with the floor?

  A Ping-Pong ball moving east at a speed of0fjw) )s-avf9msuo 4- rpxw7v 4 m/s, collides 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 magnitude imuwops)a-wsf jf -rx0 v4)7m9vpulse during the collision?

  Two objects collide and bounce off eacljn6 +cx bo2k(h other. Linear momentum

  A 3.0-kg object moves to the right at 4.0 m/s. It collides head-on with a 6.0-z21rrl*)7 thjbgajze9s o6y /kg object moving to the left at 2.0 m/s. Which lrz*s2r b egjyo ) zh6j/971atstatement is correct?

  A 100-kg football linebacker moving at 2.0 m/s tackles head-on an 80-kg halfjm6y-k+q z2e5 g itc2nback runni+ 2jtm-2niz6qc kg5y eng
3.1 m/s. Neglecting the effects due to digging in of cleats,

  In an elastic collision, i qmw6 m fb(,i4 tumr;sdv*+ra0f the momentum is conserved, then which of the following statemu;6 f,mitw r0m(sa+ rd*bmqv4ents is true about kinetic energy?

  When is kinetic energy8ios:42lszk+,6b.cbsgpop :1 8a many) jd dq conserved?

  In a game of pool, the white cue ball hits th,2j7u 7rbbs )xweemx/e #5 ball and stops, while the #5 ball moves away with the same velocity as the cue ball had originally. The tr7e,x7 /juwes2b )x bmype of collision is

  When a light beach ball rolling with a speed of 6.0 m/s collides with a hp1(mkw +o do*o27pyqo us(4 ogeavy exerc y4m o*s2(oooq7(woppdgu k+ 1ise 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 col39wzufy a6qm* lision with a stationary bowling ball in a friction-free environment. If the collision is almost perfe z6 u93wqmfa*yctly 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 elastically with an .tg:im o0ik .videntical ball at rg:o km.i .t0ivest. What is the speed of the initially stopped ball after the collision?

  A very heavy object moving with speed v collixc*w71j6w qr *qh zj+udes head-on with a very light object at rest. The collision is elastic, and there is no friction. The heavy object barely slows down. zr7+jw*w h1 6uxcj qq* What is the speed of the light object after the collision?

  A very light object moving with speed v collides head1jgjf. /n5icglx3, exi)z2 hf-on with a very heavy object at rest, in a frictionless environment. The co gnf3jiehl),f2jx z.gixc5 1/ llision 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 w g8k9fj7in v(ps3v+ej ith a yellow ball of equal mass moving with a veloc9 vp sv3+ njige87f(jkity of -2.0 m/s. What is the velocity of the yellow ball after the collision?

  A very heavy object moving with veloci)k a4kt20db( bkd2iyety 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) 2 ddtk2y0b4 k(aeikb of the light object after the collision?

  In an inelastic collision, if the momentum is conserved, then lqpwo1p1:* :uz p4(raoni 3htwhich of the following sta:pquw*:1ni4az (1 orol3php t tements is true about kinetic energy?

  Two objects collide c+z 6dzidr5i66e) a irmj bq*pr2*y* cand stick together. Kinetic energy

  A 3.0-kg object moves to the right at 4nj;.lihz4 l.7l cu ap9.0 m/s. It collides in a perfectly inelastic .lilc.z h 9ln7a jp4u;collision 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 laro0-k mm8 q 3ayx7i2o6 n-bniftge object and sticks. Which object experiences the larger magnitude of momt-6m 7ib foq0xn8yaki3 -2mnoentum change?

  In a game of pool, the white cue ball hits the #9 xt/hcupk: -1rball 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 fo0 -huxaif.;tvfw 3jp+0 dkdm )llowing statements is falsx vtwh-i;+.pu jaf3md f 0k)d0e?

  Which of the following is:sow f0ng4adsz4 ,91bv lfe9i a false statement?

  Tightrope walkers walk with a lon l7j04o3*udk(dxl( joz wjbk3 g flexible rod in order to

  A plane, flying horizontally, releases a bomb, which explodes before hittin *.vt/l 2qqu8pjb3,lsbd v(p yg the ground. Neglecting air resistance, the center of mass of the bomb fragments, just after the explosiqly ls.,uqd*tb2 3bpp8vj( /von

  Two cars collide head-on on a level friction-free ro:ri wqsk.b h8g15pq laz3 yfb6nj-k-5ad. The collision was completely inelastic and both cars quickly came to5ziq3hp6:a bj1k8sb q lw--ykrf5gn . rest during the collision. What is true about the velocity of this system's center of mass?

State Newton's second law fopbnn v *b1: ica9.2xfrr a system of particles.

  What is the momentum of a 2000-kg truck traveling at 35 mw bm s:cl8(lgq9na)a(dzw/ 6c/s?

  A 1200-kg ferryboat is movix+e, f k 6r:324sljs swjwcgvfhh 808,e j0ilhng south at 20 m/s. What is the magnitude of its momh lixshl0w:r8jge+6f2 sc0vws jh4jf3, e8,k entum?

  A ball of mass 0.10 kg is dropped from a height of 12 m. Its momentum when ita8s/he((h fe7 dy;a4vatyb 1d strikes the ground/(4 d t8 hbfvhd1y7a e(esay;a is

  Two identical 1500-kg ca9 k ewfgs2sigp+,ur t ,lrgzt,,59k9srs are moving perpendicular to each other. One moves with a speed of 25 m/s due north and the other moves at 15 m/s due east. Wz9 g erpskl9g t29i,,tu,rg5,f wsk+ shat is the total momentum of the system?

  A handball of mass 0.10 kg, traveling horizontally at 30 m/s, sttjml17)+/zd;nza v uzrikes a wall and rebounds at 24 m/s. What is the 7;ldjun /tzzvazm+1 ) change in the momentum of the ball?

  A 0.060-kg tennis ball, initially moving at a speed of 12 m/s, is 5 pxolwrqwl7qvbrk0*31 tt*. struck by a racket causing it to rebound in the opposite directior*7b3 r.wl*1qwptv5q0tl x okn 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 froz5-z(l :x+o:0 bkmlwd dyfd7t ten 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 t x0m+5 wf-l7 (dzl:bodktyt:d he pitching machine? (Assume negligible friction.)

  A 70-kg astronaut is space-walking outside the space capsun pp5 hz18geegu: c+0kkeq z4(le 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 speed of 14 m/s away from the capsule. At what sp(npgcug k01e5k:4 qphz+ze8 eeed does the astronaut move toward the capsule?

  A small object with momentum 5.0 kgm/s app waiz hb uey8:+,3*ahhroaches head-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 of the large object's momentum c* +eubh:,azwha83ihyhange?

  You (50-kg mass) skate on ice ath6l, ls;m fiw6 4.0 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 d s,lfihw6l6; mo you both move off together?

  A car of mass 1000 kg moves to the right along a level, q lbmb-h(e/u:z;/j8 ekppy 2c 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 afteq8eb-l /k: m;y2bhjceuz/p( p r the collision?

  A 1000-kg car traveling at 25 m/s runs into the rear of a stopped cpel9 ;i1 +dyvwar that has a mass of 1500 kg and they stick together. What is the speed of the cars after the cldy 9e p1+vi;wollision?

  A railroad freight car, mass 15,000 bu*3 wh .6 2sdzosuds1vm1fa ;kg, is allowed to coast 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 1d1 af6ow3bm.dv* uu2sh;zsswith brakes released. What is the speed of the two cars after coupling?

  A railroad car, of mass 200 kg, rollz m*a-zjw ntc;f4 k1p5s with negligible friction on a horizontal track with a speed of 10 m/s. A 70-kg stunt man drops straight down a distance ofcwpk* m 4tj1 fzaz5n;- 4.0 m, and lands in the car. How fast will the car be moving after this happens?

  A 60-kg person walks on uyxtrf /pto1*+o kul+l1m+p: a 100-kg log at the rate of 0.80 m/s (with respect to the log). With what speed does the logp fu lo+t/ k*1+u rm1t+lx:oyp move, with respect to the shore?

  A 4.0-N force acts for 3.0 s on an object. The force 8 ttnp+9md5xr6rmq q.suddenly increases to 15 N and acts for one more second. xmr8 t6 qm95n+.qtrpdWhat impulse was imparted by these forces to the object?

  A constant 9.0-N net force acts for 2.0 s 24gf 5ic5sus ;ith azug)(4b(dxh0qmon a 6.0-kg object. What is the object's change of velocit5 zu(b(sihg;i ut 4qxsc2)d045mhf agy?

  A 2000-kg car, traveling to the right at 30 m/s, collides with a brick wall and 4):b8fosouj(q/k k+z ysdz: kcomes to rest in 0.20 s. What is the average force the car e: q/jso)kd:z 4k(y bk+ 8fuzsoxerts on the wall?

  A 2.0-kg softball is pitched to you at 20 m/s. You hit the, lz ktc ecp*e6j55l7ga-wrx-i. ,qhf ball back along the same path, and at the same speed. If the bat was in contact with the ball for 0.10 s, what is the magnlh5i.5 *kaeg w6tlfq c-zc -e,x,r7jpitude of the average force the bat exerted?

  A 0.10-kg ball is dropped onto a table top. The spee+kc12 j:5d*xjgcp1qo 7 ofl qkds of the ball right before and right after hitting the table top are 5.0 m/s and 4.0 m/s, respectively. I cogkcq7f1:d1xjq5ol kj *p 2+f 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-eizov1rg7. c( gram bullets, with a muzzle velocity of 750 m/s, at the rate of 300 reg 1.ci 7zvor(ounds per minute. What is the average force exerted on the machine gun mount?

  A fire hose is turned on the door of a burning building inwbf u*f:gf1u x,p.of + order to knock the door down. This requires a +p:,gwuf .o* fbfuf1xforce 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 back?

  Water runs out of a horizontal drainpipe siak0q;kpfj5g;jk7 k l+,3kdat 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 thesk,q3f;p lk0d+7ji;5j k g kak ground?

  A toy rocket, of mass y(2c x0y se doo/z( 0/l(grpfy0.12 kg, achieves a velocity of 40 m/s after 3.0 s, when fired straight up. What average thrust force does the rocket engine exert/l(2e0(yyz/xgf ysr0do ( pco?

  Two astronauts, of masses 60 kg and 80 kg, are initially at rest in outer;xhq sw lzvw*vm: )m;1 space. They push each other apart. What is their separazvmqh1; m swxl)*v:;wtion after the lighter astronaut has moved 12 m?

  A 3.0-kg object moves to the right with a speed of 2.0 m/s. It collides in a 8f;v.qc b9hlenek1r q6f8nquwx, p0*perfectly elastic collision with a 6.0-kg object moving to the left b8fr90pfqce,e.vl qnk*n 86w;qxu h1at 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 directiotii)f0sv) y*x+ km*uzx3pe f/n makes a head-on elastic collision with a 0.15 kg object ipx* u3ts mi/yeffz iv) 0+*kx)nitially 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,jh:i ry(ee6 u a 1.00-kg block at rest. The bullet emerges (the bullet does nyeiur,h:e( 6 jot 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 rest, is struck head-on by an alpha-particle mk*r 2/x04ys jknn2qd uf+gh9(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? (Assume the neutron's mass equals theng kf92ds/ 4ur* xk2h 0jqny+m proton's mass.)

  A 50-gram ball moving +10 m/s collidiq2y wryo6yj1 2v-+*.s4-r ( b pwwgfbdfdkc:es head-on with a stationary ball of mass 100 g. The collision ibd-cji-r (2:y gvob6fy2*d fwqws kp yw4+1.rs elastic. What is the speed of each ball immediately after the collision?

A ball of mass 400 g movin -5nl f1i3 z1x8fb;w3/yv7aqi bdl6mckrtz 1wg 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 eli 8b ziflrvy fzm;td-x bka316l5/1q7w cwn 13astic.
(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 collid( jn,do1i+ kltu*sye7es head-on with a 3.0 kg mass at rest. If the colli t (iu7l *+jke1sny,dosion is perfectly inelastic, what is the speed of the masses after the collision?

  A 2.0-kg mass moving to the east at a m d1 *gycf8 31,kcbascspeed of 4.0 m/s collides head-on in a perfectly inelastic collision with a stationary 2.0-kg mass. How much kinetic energy icm8d11ska fc ybc*,g3 s lost during this collision?

  A car of mass m, traveling with a velocity v, strikes a *z5e*ib d e gt ,b/ r68jdsduuoxfw*9:parked station wagon, who's mass is 2m. T suiwb 8g,e*/ dz:*t 6dxurf*9do5jbehe 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 /gliwj3rtb,ae:5i4i ii8df 5 213 m/s in a vertical direction buries itself in a 2.4-kg block of wood id 3bwii5 8lifj,4ei/tr a5:ga rest directly above 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 90.0 km/h east collu3p4kyai); q+xibqg( ides with a 3000-kg car traveling at 60.0 km/h south. The two cars stick together after the collision. (See Fig. 7-1.) q3)xui+4qya gk;bpi ( What is the speed of the cars after collision?

  A 1500-kg car traveling at cz* 3f4jidb*9x(eenr 90.0 km/h east collides with a 3000-kg car traveling at 60.0 km/h south. The two cars stick together after the collisdi r( *e*9bnjf3ze4 cxion. (See Fig. 7-1.) What is the direction of motion of the cars after collision?

  Two objects move on a level frictionless surface. Objeci ; fdjl2. )v(tdr-dgf3fj3,fz p9ramt 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 lrma d zv r2f3jptf)fd(;,.ifd93j -g the collision?

  A small bomb, of mass 10 kg, is moving towa rw) lcl;./nenrd the North with a velocity of 4.0 m/s. It explodes into three fra c/;wen nrll.)gments: 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 origin, and a 10.0-kg mass sits at x = + 21.0 m. Whe1t)ys5ka hkb : jv-rb2re rt a:k)2hv-15ybb jskis the center of mass on the x-axis?

  The center of mass of a two-particle system brn 8o2k i)xv8is at the origin. One particle is located at (3.0 m, 0) and has a mass of 2.0 kg. What is the rb)8 oxk8v i2nlocation of the second mass of 3.0 kg?

  Three masses are positioned as follows: 2.0 ku2kbq1n xsb93 i2nnh,g at (0, 0), 2.0 kg at (2.0, 0), and 4.0 kg at (2.0, 1.0). Determine the coordinu,932qh bnb2xi sn nk1ates of the center of mass.

  Three masses, 1.0 kg, 2.0 kg, and 3.0 kg, are located at (0dju3ln-, 2q aa:snb-ue( 0lop, 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 the systl-pq 3(ej,:b0 2lanuo s-ndau em?

  A 3.0-kg mass is positioned at (0, 8.0), and a 1.0-kg mass is positioned at ( reop5.9d+2z v/dyvpr khe1 k512, 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 oriez 2d 1kp5vyrv+dp95ek.o hr/gin, (0, 0)?

  Use Table 7-1 to calculate the position of the CM ofs fjb+(vp0df:tpz9p c0j;b ud2 ll4* r a whole leg including the foot when the leg vsdfl0jb2l4*tp rf+ ;c b:pdz 9up 0(jis stretched straight out. Assume the person is 1.60 m tall.