What is the SI unit of mome:l zn,p eqln fjyoy 8/0k,i,2lntum?

  When a cannon fires a cannonball, the cannon will recoil backwa4qn (g 8oyb1lsrd because the

  A freight car moves along a frictionless levof1qgyg/r 7i+7jtn o :el railroad track at constant speed. The car is openy/nog7+7fr t o:qig j1 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 frvi. cr rvs2j dd(q6;uc* t;d)bictionless ice. What happensb;vrj; cdu 6.td(*r qicv2d)s to the velocity of the sled?

  A rubber ball and a l bmy,.pb4. vbc xfj+*dump of putty have equal mass. 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 experiencesb4ybxmb. pvfd *c+ ,.j the greater momentum change?

  A sailboat of mass m is moving with a momentum p. Hwnoa,ta/t r 7oo*y9o4 ow would you represent its kinetic energy in terms of t/ ot9o4y*o anowa7t, rhese two quantities?

  If you pitch a baseball with twice the kinetic energy you gave it 0;k55hmwax2r 2x .ojrt -yrrw in the previous pitch, the magnitude of its mo0 2xjomw;tyr5.r2- xr hraw k5mentum is

State Newton's second law in terms of momentu,a3j9ler .ud wm.

State the law of conservation of mom1i4 w,) .qhv, j cmzl7cddx(saentum.

  The area under the curveda 3g.lf 9on+e on a Force versus time (F vs. t) graph represents

  Which of the following is an accurate statemekcc,a2sl;cjjf 7(2ir kjnm yr+q96 r/ nt?

  A small car meshes with a large truck in a hea+41 gakj)xt w;lcd yz7d-on collision. Which of the following statements concerning the magnitude 1)yz4 xw+;gdl t7cjkaof the average collision force is correct?

  Two equal mass balls9t,vpt3d qbbn-ndmv a358 ,gb (one red and the other blue) are dropped from the same height, and rebound off the floor. The red ball rebounds to a higher position. Which ball is subjected to th,dd38t,b g b3q -v nvat9nmb5pe greater magnitude of impulse during its collision with the floor?

  A Ping-Pong ball moving east at a speed of 4 m/s, collides with a stationary bfx*x xa. r 9;/ho-9wpzgyvnu.owling ball. The Ping-Pong ball bounces back to the west, and the bowling ball moves very slowlyaor. x/.w9g9x z*-x vn;ufp yh to the east. Which object experiences the greater magnitude impulse during the collision?

  Two objects collide and bounce uvm ejhr+(*-0y* o zb,(yywbvoff each other. Linear momentum

  A 3.0-kg object moves to the right at 4.0 m/s. rfl3mmr km ,n 7aer:c8o((i7(xpq 8dy It collides head-on with a 6.0-kg object moving to the left at,me3fm8p o(rlaqx(( ri 7 7knm8rdy:c 2.0 m/s. Which statement is correct?

  A 100-kg football linebacker moving ath/ht; dvtoi+,t zb/6c 2.0 m/s tackles head-on an 80-kg halfback runnith,vbi; z ctt+ /6o/hdng
3.1 m/s. Neglecting the effects due to digging in of cleats,

  In an elastic collision, if the momentum is conserved, then which of96d:ty ls2 l9jjal m qkjjx-w 3)xwe*4 the following statements is true about x9eqt 4*dlkj 9mj)2l-jj yw3sa: lwx 6kinetic energy?

  When is kinetic energy c 4kmb7:*bldq lonserved?

  In a game of pool, the white cue bk/cbufeth(8s op / r3ndxy.k;) 2jyf )all hits the #5 ball and stops, while the #5 ball moves away with the same velocity as the cue ball had originallyyp)3yo/x fkcd.nk/)euhr8 s bf(2j; t. The type of collision is

  When a light beach ball rolling with a speed+y1hv1,. 0tnbbujj ns of 6.0 m/s collides with a heavy exercise ball at rest, the beach ball's speed after the collision will be, appro.jb1ybnv +h,1 s nu0jtximately,

  A golf ball traveling 3.no-e9t z n)4t*elr *t7ittw i+6 p,fuj0 m/s to the right collides in a head-on collision with a stationary bowlingt*to4 -e e9n7tji6+pwtfiz *,ntr l )u ball in a friction-free environment. If the collision is almost perfectly elastic, the speed of the golf ball immediately after the collision is

  A rubber ball with a speedo7.cd1 m jc9k4a 1pmq;r8ogim of 5.0 m/s collides head-on elastically with an identical ball at rest. What is the simom1p gqjr94;d7acm1.o c8 k peed of the initially stopped ball after the collision?

  A very heavy object moving with speed v collides head-on with a very 6 /hd38mp aehyxfg62c light object at rest. The collision is elastic, and there is no friction. The heavy obpyxehhm c628g /d6a f3ject 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 with a very heavy objectgyq (7qc(dr i9b 23lgt at rest, in a frictionless environment. The collision is almoc (7d g2rqig( y9tl3bqst 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 jukj*v ngu6i7-gxv+ 0(n gd:g ball of equal mass moving with a velocity of -2.0 m/s. What is the velocidn xigvujj*7:6 -(u k gv0g+ngty of the yellow ball after the collision?

  A very heavy object moving with velocity v collidesj)snu tq0*b 4a;uq98abj*yw v 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 of the ligh;jav9by8*)j tbu*4w snq qu a0t object after the collision?

  In an inelastic collision, if0s.q 1wvgez3pe;j .favrr5p kta b9)8 the momentum is conserved, then which of the following statements i5azvjap s8 ;r3f0egrk vw)t.bpe 1.9qs true about kinetic energy?

  Two objects collide and stick together. Kinrd1 wxdt,6 qhv+xtg op7y9z3 3etic energy

  A 3.0-kg object moves to the right at 4.0 m/s. It cop. w/ 9kzwffe1qlck;2 llides in a perfectly inelakf;wke w1p2fc9q.zl /stic 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 large object and sticks. Which ls s85cwmqmegf/ 8/( robject experiences the larger ma/sm( /cqr88e mwgsl 5fgnitude of momentum change?

  In a game of pool, the white cue ball r8 m6 :flsdxy2hits 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 q1mke/e7v9 unof the following statements is falsek/1uvnq e e97m?

  Which of the following izld/v juy /hg:/c5uw4 s a false statement?

  Tightrope walkers walk with a long flexible rot+z6dphj3jd2 zg/hq5cm x7 ;w d in order to

  A plane, flying horizontally, releases a bomb, which explodes before hitting th2gjdbm; u;ry/g (pfo( r,k b5pe ground. Neglecting air resistance, the center of mass of the bomb frpj5ugg;r(/; o b r,dypmk(b 2fagments, just after the explosion

  Two cars collide head-on on a level friction-free road. The collision w14m + mhx-sbbgawvy+.as completely inelastic and both cars quickly came to re1v mbg.y x4-+hmasw+bst during the collision. What is true about the velocity of this system's center of mass?

State Newton's second law fo5ba/pkp f g kdorg03:7r a system of particles.

  What is the momentum of a 2000-kg truck traveling at r9y j4nf2 uqejfk7vfp6a93( t 35 m/s?

  A 1200-kg ferryboat is moving south at 20 m/s. What iskz2p cu,d.ql(1d :rok the magnitude of its momenqd, d :ukzpcol(k21r.tum?

  A ball of mass 0.10 kg is dropped from 3u:x3xmpp/ 3ahy)rf+)wq , b blefp q c2x+x8xa height of 12 m. Its momentum when it strikesxfc)qmpx,pbyxuf3xbq2+ ep 3) /8wx+h:3la r the ground is

  Two identical 1500-kg cars are moving perpendicular to each other. Onbigcevd1,) 1 ye moves with a speed of 25 m/s due north and the other moves at 15 m/s due east. What is icd g,e)1ybv 1the total momentum of the system?

  A handball of mass 0.10 kg,qg b/k3p,ry s- traveling horizontally at 30 m/s, strikes a wall and rebounds at 24 m/s. Whapygsbk,q -3r/t is the change in the momentum of the ball?

  A 0.060-kg tennis ball, initially moving at a speed of 12 m/s, 99o-ew qmh 5 ghuiosh)1w;eb.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 o 1oe . h-hswubm h9eiq9;5)ogwf the ball?

  A 50-kg pitching machine (excluding the baseball) is placed on a frozen pond.kz2r6/eo pao uu o(22y 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 frictioa2 r2yu (oozup62keo/ n.)

  A 70-kg astronaut is 99rwfq: v9q -vm h0yqzm2pq .zspace-walking outside the space capsule and is stationary when the tether line breaks. As a means-:.9yr0mwzv p9qfqvz hqq2m9 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 a large object at res8 eydueu 6aatm3 )2fi2t. The small object bounces straight back with a momentum of magnitude 4.0 kgm/s. What is td)e2m63uiayu8tf ea2 he magnitude of the large object's momentum change?

  You (50-kg mass) skate on ice at 4.0 m/s to greet youpjm s:)zyl g,-r friend (40-kg mass), who is standing still, with open arms. As you collide, while holding each oth y g-m:)zjslp,er, with what speed do you both move off together?

  A car of mass 1000 kg moves to the right alon3h9deb trr pogd ,:u;/g a level, straight road at a speed of 6.0 m/s. It collides dire t d3bre9 dpguh/r,:o;ctly 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 into the rear of a se i ycro)n- q;+qxe0h+h)sf,ltopped car that has a mass of 1500 kg and they stick together. What iieyrocxh;)n,f s+-lq+ 0h) qes the speed of the cars after the collision?

  A railroad freight car, q4:3 ic5ip83, m v-ukrls slqymass 15,000 kg, is allowed to coast along a level track at a speed of 2.0 m/s. It collides and couplesi3slrv m yucip4-,l: k3sq8 5q with 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 withyjzhfl n/3h+p+; 5 vc.6i jkks negligible friction on a horizontal track with a speed of 10 m/s. A 70-kg stunt man+ 5hjync;kv f/kj.zil p3 s6h+ 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 0.3q a,hu2( + nznn-qbbf80 m/s (with respect to the log). With what speen bbf, (qnqn+uh2-za3 d does the log move, with respect to the shore?

  A 4.0-N force acts for 3.0 s on an objecqd12cr+wjzj+l )cc 8 lt. The force suddenly increases to 15 N and acts for one more second. What impulse was imparted by these forces to the o+zlcr1c+ c82)d wjlqjbject?

  A constant 9.0-N net force acts for 2.0 s on a 6.0-kg object. What aa*gt *6big71mdq(9h l+i7)tvxeht t is the object's change of velocityt7biqt 7(it)1hd 6 g*v*+l athx9aemg?

  A 2000-kg car, traveling to the right at 30 m/s, collides with a brick wall andd o4n r7y6w)gp comes to rest in 0.20 s. What is the average force the car e7n d6gwy op)4rxerts on the wall?

  A 2.0-kg softball is pitched to you at 20 m/s. You hit the ball back along t3*q 2sis*q/cgh08q x li tzzz2he same path, and at the same speed. If the bz3qsq02* xicz 8it 2zh*slgq/at 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. yn)gdd9 7-m+ef-lfne 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 7d)- ye 9n+egnd-mfflbetween 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-graf +rc vr*2iq*om 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 machir*f r+cv* qi2one gun mount?

  A fire hose is turned on the doog5 2f/d:ho)v b gw(st2lwbvp8r of a burning building 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 theglgwt 8 52/pd:v) v(obhsfbw2 stream needed, assuming the water doesn't bounce back?

  Water runs out of a horizontal drainpipe at the r ph3p e3 5-xrhrk; fe4qh+dkz4ate of 120 kg per minute. It falls 3.20 m to the ground. Assuming the water doesn't splash up,3kp-rkheh; rpx4z3 5hd 4 eq+f what average force does it exert on the ground?

  A toy rocket, of mass 0.12 kg, achieves a velocity 9/ )yp6kwhtuphc )0yw of 40 m/s after 3.0 s, when fired straight up. What average thrust force dokuy 96)ywthpch p 0/)wes the rocket engine exert?

  Two astronauts, of masses 60 kg and 80 kg, are initia9yczi*k5 h n 46he5kdcv rw0y,lly at rest in outer space. They push each r5z6dkh c*n9w 45c ye0i, hvykother apart. What is their separation after the lighter astronaut has moved 12 m?

  A 3.0-kg object moves to thxl +h a;+dtuthv m0. thc(1yr0e right with a speed 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 kinetihlmc r.ua td( xy+t;v 00h+1htc energy after the collision?

  A 0.10-kg object with a velocityoe9vsgwfi-ji5aw-x( :p x0 h) of 0.20 m/s in the +x direction makes a head-on elastic collision with a 0.15 kg object initially at rest. What iw( w:-9h fj5g)paxsio vxe-0i s the final velocity of the 0.10-kg object after collision?

  A 10.0-g bullet moving at 300 m/s isfqg;l 47byx /p fired into a 1.00-kg block at rest. The bullet emerges (the bullet does not get embedded in the block bp q;x74gy/lf) 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 (w,7-xorc(:fch - t2,/ky wclch rcc,rrhich consists of 2 protons and 2 neutrons) moving at speed v. If the collision is completely elastic, what speed will trc2cw tr:y7 rcc,l c ohck,-,hx(-r/f he alpha-particle have after the collision? (Assume the neutron's mass equals the proton's mass.)

  A 50-gram ball moving bq-0:s(z r72hgvq jm2n;l)3 enogmdw +10 m/s collides head-on with a stationary ball of mass 100 g. The collision is elastic. What is the speed of each ba mz dgjh7);vwge 32-o rl2b0qs (nqmn:ll immediately after the collision?

A ball of mass 400 g movin- llz3v+jpl d8g toward the east with a speed of 3.70 m/s collides head-on with a 200vjlp-ldl+8 z3 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 sglia:ahn7 e11oem1edi 2v/o h kym- +1peed 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/1eg :12v-eoa +mhinkohl 7ae iy1d 1m the masses after the collision?

  A 2.0-kg mass moving to the east at a speed of 4.0 m/s collides hetx,gn 1jz. :wmad-on in a perfectly inelastic c z,j.tnmg1x :wollision with a stationary 2.0-kg mass. How much kinetic energy is lost during this collision?

  A car of mass m, travelikz2 s elqg*ivxa), z(/ng with a velocity v, strikes a parked station wagon, who's mass is 2m. The bumpers lock together in this head-on inelastic collii2 zqg/)lea(k*xvz, ssion. What fraction of the initial kinetic energy is lost in this collision?

A 15-g bullet traveling 213 m/s in a vert vduueu-p +z4:ical direction buries itself in a 2.4-kg block of wood a rest di u+-uvd4upez :rectly 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 collides with a 3000-kjh,t01z ng ldhjl-8tb7ra6 4 +n rrrj;g car traveling at 60.0 km/h south. The two cars stick together after the collision. (See Fig. 7-;j4rj8n6trd+1t n07r, -jlhlba rz gh1.) What is the speed of the cars after collision?

  A 1500-kg car traveling at 90.0 km/h east collides with a 3000-kg car 24xhlm5qcv3x traveling at 60.0 km/h south. The two cars stick together after the collision. (See Fig. 7-1.) What is the direction of m2q5 cl3h4 vxxmotion of the cars after collision?

  Two objects move on a level frictionle uroe 3,ygqc**ss surface. 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 the collisionq 3gr*uocey *,?

  A small bomb, of mass 10 kg, is moving toward the North with a velocity k4b ghj,50;ewkzij j9 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;0hie 5jjkb 4,wk9zj g 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-k *sifppj.n8 qwq9gau q1qg qr/.5 j94og mass sits at x = + 21.0 m. Where is the center of mass on q499igrjpog*.q5 s8u pjf.1awqq q/n the x-axis?

  The center of mass of a two-particle system is at the origin. One parti:s-c7oj u+m qocle is located at (3.0 m, 0) and has a mass of 2.0 kg. What is the location of the second mass of 3moc s+u:j7-oq.0 kg?

  Three masses are positioned as follows: 2.0 kg at ,8f ig3iykk;(p et:vn(0, 0), 2.0 kg at (2.0, 0), and 4.0 kg at (2.0, 1.0). Determink tnp :y (;8vg3iki,efe the coordinates of the center of mass.

  Three masses, 1.0 kg, 2.0 kg, and 3.0 kg, are located at (0, 0), +06pcunrn.cp (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 sysnp c.n+06ucprtem?

  A 3.0-kg mass is positionedm::r w mlm g.jdg-oq0/ at (0, 8.0), and a 1.0-kg mass is positioned at (12, 0). What are the coordinates of a 4.0-kg mdwlgq: /mor :gm 0.-mjass 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 calculateho,a s3j it5 w);/x(ht2 kbyaby,mzt0 the position of the CM of a whole leg including the foot when the leg is stretched straight wh2o3ka,xt (0b5 ,)sta ;/bmth jizyy out. Assume the person is 1.60 m tall.