What is the SI unit ofb-9h:h4zp9jbbuc wd * momentum?

  When a cannon fires a cannonball, the cann0izu/v/q 8d.rg7er6k 7qzq xd on will recoil backward because the

  A freight car moves along a frictionless level railroad track at constant speed*tigl( x,tr.9ull ctaitp/:x7 9kj- o. The car is open on top. A large load of coal is suddenly dumped into the car. What happens to the vel79ir tgl lt,-xjp 9t(*ot/k:xilc.ua ocity of the car?

  A child falls sideways off a sled while sledd jkip0k lc3*x. w9y ugyihh.y.bp4*a.ing on frictionless ice. What happens to the velocity oiw*. yx bl4pp*.ca93hhyug .yk0 jik.f the sled?

  A rubber ball and a lump of putty have equal rk-wyn g6e cmj)//xyx3 or7zzjo+ e+3mass. 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 the /e+nwoe3)6jm r r cxx-ozz 3j7/yky g+greater momentum change?

  A sailboat of mass m is moving with a momentum p. How would you repreez*owv mo *1xnep0i05sent its kinetice1eovmo5* 0w0*x pi zn energy in terms of these two quantities?

  If you pitch a basebq36up 3qfnvljwo624 ymmqz24all with twice the kinetic energy you gave it in the previous pitch, the magnitude ofj2p2 qvqlmf6umn o3463ywq z 4 its momentum is

State Newton's second law in t(:ml2zq1 nfikoc0+ier 9vt /aerms of momentum.

State the law of conservation of momentum.av(5 o,b a;yv c*xt;ozeya*o /

  The area under the curve on a Force versus tm-- 7xsv ux3ypime (F vs. t) graph represents

  Which of the following i s rg5e5ho,a3sy+l z5es an accurate statement?

  A small car meshes with , ec;q8xzd8t8r,rrqp a large truck in a head-on collision. Which of the following st,,8 ;rcp8qeq d rzt8rxatements concerning the magnitude of the average collision force is correct?

  Two equal mass balls (one red and the other blue) are dropped fg6:z(n bc-7 qagg; lg8)so dicrom the same height, and rebound off the floor. The red ball rebounds to a higher position. Which ball is subjected to the greater magnitude of impulse durino)l abc-q dg67sz8cgi;g( ng:g its collision with the floor?

  A Ping-Pong ball moving east at a wl73c6/ vlknpspeed of 4 m/s, collides with a stationary bowling ball. The Ping-Pong ball bounces back 3 c/kv6l7l nwpto 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. Linear ei f j(:x8-/wa ;m*xcxkiu8p ux +w.famomentum

  A 3.0-kg object moves to the right at 4.0 m/s. It co-. xms sp:psz*houwnyz7mg0fa,:-9 v llides head-on with a 6.0-kg object moving to the left at 2.0 m/s. Which statement is copha:smnp.y sf ,*:-0u7 xozv9zwms-grrect?

  A 100-kg football linebacker moving at 2.0 m/s tackleko p 2foub/lu:(1*dmcs head-on an 80-kg halfback runnk2u/o oc1:ldf(*pu mbing
3.1 m/s. Neglecting the effects due to digging in of cleats,

  In an elastic collision, if the momentum is conserved, th2o / z7yd// xu-*no9nlu*vs2hujunp;fk1oeoen which of the following sta17nuu9*eu/o n2lonh*jv/z do;syk2 / f - uopxtements is true about kinetic energy?

  When is kinetic enerd0j x9dxys w2(gy conserved?

  In a game of pool, the white cue ball hits the #5 ball and stops, while the #ud(.hqz:n *z: (btjzx 5 ball mov(zt. jz(u:dhxbnz q*:es away with the same velocity as the cue ball had originally. The type of collision is

  When a light beach ball rolling with a speed of 6.0 m/s collides with a i7ccg6*f b r)gheavy exercise ball at rest, the beach ball's speed after the collision will be, apprb*cgigrcf 7 )6oximately,

  A golf ball traveling 3.0 m/s to the right wu/ d8y0umb-jcollides in a head-on collision with a stationary bowling ball in a friction-free environment. If the collision is almost perfectly elastic, the speed of the golf ball immediately after the collision idbu /yw u08j-ms

  A rubber ball with a speed of 5.0 m/s collides head-on elastically wit5xyf.m*uagl48 g::qok )fr ci h an identical ball at rest. What is the speed of the initially stopped ball after the colli4l8 : qk:5mu*ycgfaxrfo.ig )sion?

  A very heavy object moving with speed v collides head-on with a very light ob,, ,ou3 z qq;j**qx1rqnnkp ifject at rest. The collision is elastic, and there is no friction. The heavy obj,x,,i;r qqznnufk q* q3o*1jpect 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 objetathla;,m6 7 t1in5bnct at rest, in a frictionless environment. The collision is almost pe;75aai m ,6nttt nbl1hrfectly 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 akr-6uyxiu5fg z k;u* + yellow ball of equal mass moving with a velocity of -2.0 m/s. What is the velocitzyui*x;u u+rk-g 6kf5 y of the yellow ball after the collision?

  A very heavy object moving with velocity v collidesof1+mm q:ywo . (tihiud;r.z- head-on with a very light object moving with velocity -v. The collision is elastic, and there is no friction. The heavy object barely s.+m1oif t diz q-(ru;myh.:o wlows down. What is the speed of the light object after the collision?

  In an inelastic collision, if i4nam5 x16gjp the momentum is conserved, then which of the following statements ig4 napx5im61 js true about kinetic energy?

  Two objects collide and stick togetherp7 7y;6qmzesm . Kinetic energy

  A 3.0-kg object moves to the right at 4.0 m/s. It collo). q4c nrs/,ajt3dnx x,o4x zides in a perfectly inelastic colliaq)4o n/4n3x rt,zjcdsx. x,osion 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 objeeks1fw, *qo2qndi1t -ct experiences the larger magnitude of momentu,w1t nqo1s 2dek* -ifqm change?

  In a game of pool, the white cue ball hits the #9 ball and is deflecten,/8ys1 t 57 w 9i3zxtprz7twnjbgz s(d 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 statements is falj 82guteyc::.pji 6q/z z+ pk*1y hyrmseye t6ur/jy+zzc8:h : ppk2*gjm q.1 iy?

  Which of the following is a false sta/epe-0w+uplk tement?

  Tightrope walkers walk with a lmu e9a+k8dkl5 ong flexible rod in order to

  A plane, flying horizontally, releases a bom1j d(m h9kr+j-vjyp3 ab, which explodes before hitting the groun +1y3p mkvdhj9jr( a-jd. Neglecting air resistance, the center of mass of the bomb fragments, just after the explosion

  Two cars collide head-on on a leve 8/* k jq4tl8-pyagstpl friction-free road. The collision was completely inelastic and both cars quickly came to rest during the collision. What is true about the velocity of this system's cenajpky lgq* t-/p 4ts88ter of mass?

State Newton's second :uc rk yx9lzy01ng8.plaw for a system of particles.

  What is the momentum of a 20jmiyn : wrc(9+tm8jk) 00-kg truck traveling at 35 m/s?

  A 1200-kg ferryboat is moving south at 20 m/s. What is the magnitude rt1cp5k- vzqfwgp 8,k)r:p* bof its mom -w:81,ptkbfp)gqrr*zcv 5k pentum?

  A ball of mass 0.10 kg is dropped from a height of 12 m. Its momo) te wak5sq);entum when it strikes the gro)otak )sw;5eq und is

  Two identical 1500-kg cars are moving perpendicular to eu9:9w fbk3 akjtyda 19ach other. One moves with a speed of 25 m/s due north and the other moves at 15 m/s due east. What is u9:y 1ja9k kwtf9db3athe total momentum of the system?

  A handball of mass 0.eopso; h .ci 6o+p+cc*10 kg, traveling horizontally at 30 m/s, strikes a wall and rebounds at 24 op++c* op hc6oie c;.sm/s. What is the change in the momentum of the ball?

  A 0.060-kg tennis ball, initially moving at a speed of 12 m/s, iswd)rnp/9a 4i b/n mwp45m)tue lj0a*g struck by a racket causing it to rebound in the opposite direction at a speed of 18 wrm tg4e) 9ilnnbpj0 4aud m 5paw/)*/m/s. What is the change in momentum of the ball?

  A 50-kg pitching machine (excluding the baseball) is placed on a frozen q2 7 6ekygok/qpond. The machine fires2 /gqkyqk76oe 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 friction.)

  A 70-kg astronaut is space-walking o5 yg7 5;ozkmqjutside the space capsule 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 speed does the astronaut move k5y zgmjq5o;7toward the capsule?

  A small object with momentum 5.0 kgm/s approaches head-on ofol07axeml x67a7 *cjz-qj 2 a large object at rest. The small object boun-z 2xxa*jac 6m7le77j qofol0ces straight back 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 ice at 4.0 m/s to greet 8gb* nc5 c0cyksd*b w8your friend (40-kg mass), who is stan*5g *bcb c0 8sn8dcwykding 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 a level.urvu -50puqa, straight road at a speed of 6.0 m/s. It collides directly with a stopped motorcycle of mass 200 . u v0u5apqr-ukg. What is the total momentum after the collision?

  A 1000-kg car traveling at 25 m/s runs into the rear of a stopped car that hasi zhx ufmdof;8ift /31y1w t5/e1230e l utret a mass of 1500 kg and thtf 1 fuui8e i502meywt x13o3htez drtf ;l//1ey stick together. What is the speed of the cars after the collision?

  A railroad freight car, mass 15,000 kg, is allowed to coast along a 2iqha2a bn6i g2j:g( alevel track at a speed of 2.0 m/s. It collides and couples with a 50,000-kg second car, initially at rest and with brakes released. What ha:qjig 2a(an 2g26b iis the speed of the two cars after coupling?

  A railroad car, of mass 200 kg, r zf9rcz t0(c m,4riq4nolls with negligible friction on a horizontal track with a speed of 10 m/s. A 70-kg stunt mq in, zr(z90cc4mrf4tan 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 0.80 m/s (with respe nlz7 ewpq0kcb47k5 ;zct to the log). 7lzc0pqz 45 kkebwn 7;With what speed does the log move, with respect to the shore?

  A 4.0-N force acts f,wr ilhs7.9 rmor 3.0 s on an object. The force suddenly increases to 15 N and acts for one more second. What impulse was imparted by these for i,9lmrh.7sw rces to the object?

  A constant 9.0-N net force acts for 2.0 s on a 6.0-kg objdzur-+q*bb u,ok-0 sx ect. What is the object's chanu +bb-*,u0rxkszo q -dge of velocity?

  A 2000-kg car, traveling to the right at 30 m/s, ll lapltyrha o.80cs4 3hq4)wkj9c.) collides with a brick wall and comes to rest in 0.20 s. What is the average force the car exert. 49a 4.c 0c olllywh)sh)kpja3trq8ls on the wall?

  A 2.0-kg softball is pitch3 ju e foxp,16zj8mqw70xp+ iked to you at 20 m/s. You hit the ball back along the same path, and at the same speed. If the bat was in contact with the ballz xm 8p+x017, oeqkp6j 3jiuwf 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. The speequuo10gl 86v/ f f)lotds of the ball right before and right after hitting the table top are 5.0 m/s a l1 tuvo8fq )6u0/fglond 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 bullets, with a muzzle velocitemn5 y*d:b cd(p9+ ytxy of 750 m/s, ate mpdd*ynt:9xy 5b+c ( the rate of 300 rounds per minute. What is the average force exerted on the machine gun mount?

  A fire hose is turned on the door of a burning bu/qlk+. xyfdv*/d1/qko6g m f7u3txziilding 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 nex/. /kl ku qd 3 fof/ty1gz*v7+x6qmdieded, assuming the water doesn't bounce back?

  Water runs out of a horizontal drainpipe at thooi6 p)t uph(9e rate of 120 kg per minute. It falls 3.20 m)uhpo9p ( ti6o to the ground. Assuming the water doesn't splash up, what average force does it exert on the ground?

  A toy rocket, of mass 0.12 kg, achieves a velocity of 40 m/s after 3.0pawu77w ,p -3h on-hph1d(onz s, when fired stouzhwp , -a(p1ow ndp7n-73hhraight up. What average thrust force does the rocket engine exert?

  Two astronauts, of masses 60 qked5fg.-tbo0q q.yarv8xj-2t: ;st kg and 80 kg, are initially at rest in outer space. They push each other apart. What is their separation after t;jv: -aqqg0dbttxey-5.tosq .f8 2k rhe 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 ieqk p xjwi00 eio3)/e:n a perfectly elastic ex)keio0e:wiq3 pj0/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 m/s in the +x direction makes a (9l5dmfzd,f.b v,x tq. 7dgcu head-on elastic collision with a 0.15 kg object initially 7d q dlz.ux5bg,tffvm(cd9., 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 fire gcb2(og gv0l6 omr6a0d into a 1.00-kg block at rest. The bullet emerges (6glm cb0aov0r6g2og (the 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 r2cjcsr6pnqm2h ,29m b est, 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 speed will the alpha-particle have292 62 mnhc,rjpmb sqc 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 8;hnsw bql u0)stationary ball of mass 10; )bnq 8huws0l0 g. The collision is elastic. What is the speed of each ball immediately after the collision?

A ball of mass 400 g moving toward l /vpr :x o/u(mpmlc*kof3 xr//k8b:z the east with a speed of 3.70 m/s collides head-on with a 200:m/pkxzvol(u:p/b cr /8ofklx /3mr * 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 mdfv8nkfhtnk:23 lqtb :9n p)s0 ,r-vr/s. It collides head-on with a 3.0 kg mas0f9f3nt:-n)r nb 8td, lvq2kr kvps:h s at rest. If the collision is perfectly inelastic, what is the speed of the masses after the collision?

  A 2.0-kg mass moving to the east at a speed of 4.0 m/s)u)89kuiqwver v2 smhn1x c,6 collides head-on in a perfectly inelast,n)ui19mks c2ve 8u )hwxrqv6 ic collision with a stationary 2.0-kg mass. How much kinetic energy is lost during this collision?

  A car of mass m, traveling with a velocity g rj 0f8puvt ej02ixcy278f* tv, strikes a parked station wagon, who's mass is 2m. The bumpers lock together in this hea0vfettj yi8 rp0 c7fujx2 2*8gd-on inelastic collision. What fraction of the initial kinetic energy is lost in this collision?

A 15-g bullet traveling 213 m/s in a vertical direction buries b3m ye,(yf.ku itself in a 2.4-kg block of wood a rey, ueymkf3(b. st 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 collides with a 3000-kg car traveliwa- bsbnv,vsv( xr;/jag i. (xx3).ue xrj 5k+ng at 60.0 km/h south. .aix+(kjr5(aj bs,sgx nv/v-b.3 eru ;x)vw xThe 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 collides with a)* lb,3bhd uk3 zat*/:iajj/9kft tmr 3000-kg car traveling at 60.0 km/h j*/ft za / )uktrj*dma:kl3t,hi 3b9b 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 ea r3jo xq8o8mq(st with a momentum of 24 kgm/s. Object B moves north with momentum 10 kgm/s. They make a perfectly inelastic col38orjq q 8x(omlision. What is the magnitude of their combined momentum after the collision?

  A small bomb, of mass 10 kg, is moving toward the North with a velo) 6jz9xy:wio p7 bza1tcity of 4.0 m/s. It explodes into three fragments: a 5.0-kg fragment moving west with a speexp6yb1 9 o)awz:ti7jzd 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 at0mjtl1il8wuyp/ -,c 1kc(qdj the origin, and a 10.0-kg mass sits at x = + 21.0 m. Where is the center of mass on th(jluqj c/y1 k 8m-wc0ptd 1,lie x-axis?

  The center of mass of a two-particle system is at the origin. ; *gl;j gc;cj,p6 mzueOne particle is located at (3.0 m, 0) and has aljp gu6egz*,;c cj ;m; mass of 2.0 kg. What 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 kgbm-bv.z3j*ppyu)e tt9n 7w +a at (2.0, 0), and 4.0 kg at (2.0, 1.0). Determine the coordinates of the centz3ypven7w)a* p .mbt 9+- ujbter of mass.

  Three masses, 1.0 kg, 2 l3 m33jls4v-38h5nwrii n gyc.0 kg, and 3.0 kg, are located at (0, 0), (1.0 m, 1.0 m), and (2.0 m, -2.0 m), respectiv 3 ii45hjv m8ynlr3nwslg-3c 3ely. What is the location of the center of mass of the system?

  A 3.0-kg mass is position0 wbco4su:piz8mm6 j+ ed at (0, 8.0), and a 1.0-kg mass is positioned at (12, 0). What are the coordc0 4su8o+b pjm:wz mi6inates 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 calculjd4rdl pk -);iate the position of the CM of a whole leg including the foot when the leg is stretched straight o;kdi- dlj)p4r ut. Assume the person is 1.60 m tall.