What is the SI unit ,i6 4pj* agu2lq zye//i sckqasok9.*of momentum?

  When a cannon fires a cannonball, t ngk)e8jdaf5qff (bo 0w:pz0(gv.hg 7 he cannon will recoil backward because the

  A freight car moves along a frictionless level railroad track at co7u/8bjl(,qx: mj awlonstant speed. The car is open on top. A large load of coal is suddenly dumped into the car. What haj( /7 qolx m,jbwu8:lappens to the velocity of the car?

  A child falls sideways off a sled while sledding on frictionless ice. What hagic-qzhz u /w+s(b2/uppens to the velocity of the sg/u 2s/qbhz iu+z (-wcled?

  A rubber ball and a lump of putty have equal mass. They are thrown b.f82rd s ,xrwwith equal speed against a wall. The ball bounces back with nearly the same speed with which it hb .,ds2frr8x wit. The putty sticks to the wall. Which objects experiences the greater momentum change?

  A sailboat of mass mm02e3jov)ki 7 t3i9 9bfrj jxp is moving with a momentum p. How would you represent its kinetic energy in rjjo3 fi 3x9t)ekjp 2vm09bi7terms of these two quantities?

  If you pitch a baseball with twice the kinetic energy you gave it in the previoujfd7c( 2u;nh6 f x5ixus pitch, the magninch;67d2 uu(5j ffxxitude of its momentum is

State Newton's second law in terms of momentum)c;x wp x4ux/m.

State the law of conservation of .0y2ck+w4 xw nn onrqn2z*og 3momentum.

  The area under the curve on a Force versus time (F vsq x, u-)ssr9gtb)7ndk. t) graph represents

  Which of the following is an accurate4z9z3tew 3s1lm 0zpsm statement?

  A small car meshes with a lauyv:) pxqblh3(h) (rerge truck in a head-on collision. Which of the following statements concerning the magnitude of t(ql):3v y r)bhpxheu(he average collision force is correct?

  Two equal mass balls (one red andan3h;c -zuv) 22 0l0ekj taphy-1 pdqb the other blue) are dropped from the same height, and rebound off the floor. The red ball rebounds d2 -y-2cv ptq an0azuke)pjbh;l0h 13to a higher position. Which ball is subjected to the greater magnitude of impulse during its collision with the floor?

  A Ping-Pong ball moving easm+f0n2g ujq g9t at a speed of 4 m/s, collides with a stationary bowling ball. The Ping-Pong ball bounces back to the west, and the bowling ball moves u+jg0m2 nqg9f very slowly to the east. Which object experiences the greater magnitude impulse during the collision?

  Two objects collide and bounce off each other. Linear +xf 0ixs njk6k5h4 fxkq4l )71ljh2czmomentum

  A 3.0-kg object moves to the rn9-8g dvt-* oq*kxykkd :-n;ls am2ooight at 4.0 m/s. It collides head-on with a 6.0-kg object moving to the left yatkqvn9d;:x- 2n 8lo-goom*-s dk *kat 2.0 m/s. Which statement is correct?

  A 100-kg football linebacker moving at 2.0 m/s tacklepru-zieazd *g73 f0op1t/- sos head-on an 80-kg halfback-pia0-/r3o u* ez1tg zsfpod7 running
3.1 m/s. Neglecting the effects due to digging in of cleats,

  In an elastic collision, if the momentum is conserved, then which of the follwzjk/5hsc(0 ocr7l 7w yzr09:mavn , howing statements is true about kinet ,:hohww (rzn a7rkj5lcm00cz7ys9/ vic energy?

  When is kinetic energy conserv+ q le ux;k.vwk00 07*iscymwted?

  In a game of pool, the white cue ball hits the #(te i+wf/gn0 e5 ball and stops, while the #5 ball moves away with the same velocity as the cue b(/i+g etwf e0nall had originally. The type of collision is

  When a light beach ball rolling with a speed of 6.0 m/s collides with a heavy ;zs85/q ij,e, z ynat7sywv: yexercise ball at rest, thej5sqe /:z,n y;z y 8y,vswtia7 beach ball's speed after the collision will be, approximately,

  A golf ball travelingc+.5l i- pt sgwat bp48+jw4zd 3.0 m/s to the right collides in a head-on collision with a stationary bowling ball in a friction-free environment. If t+b8. pa 4z4jw+tgs5 itdl-c pwhe collision is 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 elasticallkz:zsa9j/ y ;jy with an identical ball at rest. What y;jj9k sa:zz/is the speed of the initially stopped ball after the collision?

  A very heavy object moving with speed v collides head-on with a verxz-vhp o qz )xc0njiztr3wj:7:1 p8w+y light object at rest. The collision is elastic, and there is no friction. The heavy object+tw3w xj:0voi )8zq7rp 1p:cn-j z xhz 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 gtp,x *iwo*t0with a very heavy object at rest, in a frictionless env pg i,0wotx**tironment. The collision 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 with a yellow ball of 6, 2s.mhhoh t1pupm y6equal mass moving with a velocity of -2.0 m/s. What is the velocithh2t su6oypmh,1.p6m y of the yellow ball after the collision?

  A very heavy object moving with velocity v cb* capy-6(ecf ollides head-on with a very light object moving with velocity -v. The collision is elastic,*f -cac yb6(ep and there is no friction. The heavy object barely slows down. What is the speed of the light object after the collision?

  In an inelastic collision, if the momentum is conserved,wv 5zp )0n,n,tug p1nc then which of the following stat,n ,) n0pn 5ugcztp1vwements is true about kinetic energy?

  Two objects collide and stq86+pt ;x getuick together. Kinetic energy

  A 3.0-kg object moves to the right at 4.0 m/s. It coll5v401f19 cpztl nwtq4z tktl1ides in a perfectly inelastic llwtzftckq5z4 014t9t11v pn 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 7msvtv 62 mpd3large object and sticks. Which object experiences thm7 vm2 v6dstp3e larger magnitude of momentum change?

  In a game of pool, the white cue ball hits the #9 ball and i.wd-)gtwzsk:6n e ac +s 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 following statements k+4 t)c/n9 si +mhbjdiis falsbi jknh9+/m d+t)c 4ise?

  Which of the following is a false qw1y0ehj 1 2womzt.euw(a: 3nstatement?

  Tightrope walkers walk with a long flexible rod in order 7b63l.8d1ylzautr,oh 9f xto to

  A plane, flying horizontally, releases a bomb, which explodes be*giv+2r czaq:fore hitting the ground. Neglecting air resistance, the center of mass of the bomb fragments, just afterrv *:qc2+gi az the explosion

  Two cars collide head-on on a level friction-free road. gvcgy1gyy** 7e3 pml7The collision was completely inelastic and both cars quickly came to rest during the collision. What is true about the velocity of this system's cenl *yg*v ye1g3mp7c7gyter of mass?

State Newton's second1v f kyl0 4fd,n/t8h,o 9bcu- ycqhp3d law for a system of particles.

  What is the momentum of a 2000-kg truck traveling at 35 y cay.2y bhzzbppbt0ko2h0*)dv+8m3m/s?

  A 1200-kg ferryboat is moving south at 20 m/s4+3.d z feq xvr:pnc0(ts.lek. What is the magnitude of its moment. fvk4(s+lxzder pq.03 ctne:um?

  A ball of mass 0.10 kg is dropped from a height of 12 m. Its momentum8 -q aea**:bnsd.yv(a6x ecaw;n 9 hmi when it strikes thei 6ax;d swba avnyaheqe m**:c(n9 .8- ground is

  Two identical 1500-kg cars are moving perpendic25x8wnbdc434i d)l e wvok;bjular to each other. One moves with a speed of 25 m/s due north and thewn2 jwe43bb l)k idx8o4;cv5d other moves at 15 m/s due east. What is the total momentum of the system?

  A handball of mass 0.10 kg, trcmaq0 ; d0(r* l6cb7uf g dvsz)w(bbt,aveling horizontally at 30 m/s, strikes a wall and rebd *cb bm; 0sc0gdfl6rza(,t v)q7w(u bounds at 24 m/s. What is the change in the momentum of the ball?

  A 0.060-kg tennis ball, initially moving au*:b( o3 so acb+(ozgrt a speed of 12 m/s, is struck by a racket causing it to rebound in the opposite direction at a speed of*bzgu(oa+(:c osro3b 18 m/s. What is the change in momentum of the ball?

  A 50-kg pitching machine (excluding the baseball) is placed on a frozen7 )2m (ewj1db jorv3nq pond. The machine fires a 0.40-kg baseball with a speed of 35 m/s in the ho oj 2)7we3bqj rvd(mn1rizontal direction. What is the recoil speed of the pitching machine? (Assume negligible friction.)

  A 70-kg astronaut is space-walk-f1oc*wlrt+ king outside 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 towtc+of 1lk- wr*ard the capsule?

  A small object with momentum 5.0 kgm/s approaches head-on a la3o ..2nqr yd+1edl0zipvp 2q lrge object at rest. The small object bounces straight back with a momentum of magnitude 4.0 z 2y2qo .d1l0p.prq3+eldv i nkgm/s. What is the magnitude of the large object's momentum change?

  You (50-kg mass) skate on ice atm4 sixvc :r-y: 4.0 m/s to greet your friend (40-kg mass), who is standing still, with open armsis v-xcm: y:r4. 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 rig :.(eem8hm :jvxm97mtqhq* opht along a level, straight road at a speed of 6.0 m/s. It cojmmxq:9 :8 *e7 .t(vmheqhpomllides directly 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 runk*4htwo8z rc abbe )22s into the rear of a stopped car that has a mass o)kb2abe 8r h* tcw24ozf 1500 kg and they stick together. What is the speed of the cars after the collision?

  A railroad freight car, mass 15,000 kg, is allowed to coawst6u mr(fkm*ts qgm*+(0i +tst 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 with brakes released. fmmu ( ss0t i gk(*+wtqr*+6mt What is the speed of the two cars after coupling?

  A railroad car, of mab5ixhoc,q m*6 ss 200 kg, rolls with negligible friction on a 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 movi6m *ox h5ciqb,ng after this happens?

  A 60-kg person walks on a 100-g *b(4.xnt 0d:htfxit kg log at the rate of 0.80 m/s (with respect to the log). With what speed does the log move, with respect t .x(:t4f*dti ngth b0xo the shore?

  A 4.0-N force acts for 3.0 s on an objectb8y 9yv90y o2jepmi btz 5vz68. The force suddenly increases to 15 N and acts for one more second. What impulse was imparted by these 9pv58vz iye0ymtzb6 o b8 9y2jforces to the object?

  A constant 9.0-N net forcbkgpwhesha -5-b : q72e acts for 2.0 s on a 6.0-kg object. What is the object's change of--2pkq5sb:7hwe bhg a velocity?

  A 2000-kg car, traveling to the right at 30 m/s, collides with a brip/ (ue-r1)7qs6n72 ickb d fswz)whgrck wall and comes to rest in 0.20 s. What ir7pcs2)- 6 khgqf w/rwzsb1 i (dne)7us the average force the car exerts on the wall?

  A 2.0-kg softball is m iin9 9s1b74zngq;mnpitched 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 ball for 0.10 s, what is the magnitude of the average force the bat exertedngsin1nqz4 m9 ;9m7ib?

  A 0.10-kg ball is dropped onto a table top. Thelg2 9vsl*h5a+ur5vm n 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 and the table top lasts 0.15 s, what is the m+25rnuvgmv *s 95la lhagnitude of the average force exerted on the ball by the table top?

  A machine gun, of mass 35.0 kg, fires 50.0-8d 3kj9 j5;o wcjtv:zwts2 ou))u/d mngram bullets, with a muzzle velocity of 750 m/s, at the rate of 300 rounds per minute. What stu/nwj um):3 8j29kd o5;)cdovjwtz is the average force exerted on the machine gun mount?

  A fire hose is turnedrsr1xabr6gt *w yi;)sp9* ja: 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 per second, what is the minimum velocity of the stream needed, assuming the water doesn'tr;9*i:6bsp)yrw1 ga* rx ast j bounce back?

  Water runs out of a horizontal drainpipe at the rate of 120 kg per minute. Iu38:epn flea5;yf nk ql ,(h2dt falls 3.20 m to the ground. Assuming the water doesn't splash up, what average force does it exert on:, ;pl aldee53(8nhfny fqk2u the ground?

  A toy rocket, of massoseo9mvndry st)(+pzx n1 6qlg*dzu5l 15b1 1 0.12 kg, achieves a velocity of 40 m/s after 3.0 s, when fired straight up. What avemd)uoslzp by5dt6r x9 o 1 1nl51seq1 n+(zg*vrage thrust force does the rocket engine exert?

  Two astronauts, of masses 60 kg andd drj.*02m5:gip m6z zf/tcwzvmda :) 80 kg, are initially at rest in outer space. They push each other apart. What is tc:d6mz z.)jf gwz 2:m/d5t *virmadp0heir separation 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 collide5t(p/.0gvv2x r c7si bb8 sazss in a perfectly elastic collision with a 6.0-kg object moving to the left (tsbx50rp.ic vvas2 8bz/s7g at 1.0 m/s. What is the total kinetic energy after the collision?

  A 0.10-kg object with a velocity ofio:xq:f;2ri w 0.20 m/s in the +x direction makes a head-on elastic collision with a 0.15 kg object initially at rest. f:wq:i2 r;ix o 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 a 1.00-kg block at row1lp) (lyd1 lu2u icp qxq,+mz2i32w est. The bullet emerges (the bullet does not get embedded in the block) with half of its original wlcl (q 1+w,2qlpuxp22i)z oi 1d3ymuspeed. What is the velocity of the block right after the collision?

  A proton, of mass m, at rest, is str))sua:ih 3: zc(d0 xedz o(djvuck head-on by an alpha-particle (which consists of 2 protons and 2 neutrons) moving a :z c3j0udva(soz)e xh i)(d:dt 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/s collides head-on withky:.(fww3h*tl7or4.kr(n t f les d(g a stationary ball of mass 100 g. The collision is elastic. What is the speed of each ball immediately after the collisiots o *4nl7w(yldt(egkr .k3f.whr :f( n?

A ball of mass 400 g moving toward the 2oq 1)5s 7uh luo0e+qreye6rheast with a speed of 3.70 m/s collides headlquho 20y 6s+ 7eeruhe5qor1)-on with a 200 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 m/s. It collid;hakqm*4ryu u77bo j;es head-on with a 3.0 kg mass at rest. If the collision a oyu;7 ;*bh u7kr4qmjis perfectly inelastic, what is the speed of the masses after the collision?

  A 2.0-kg mass moving to thes:i fkr dpy3(x/*4ck c east at a speed of 4.0 m/s collides head-on in a perfectly inelastic col ks4xiky*3fcrcpd/ :( lision 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 v, strikes a parked m8x6ardmfol:op e+-y,w d+ 0tstation wagon, who's mass is 2m. The bumpers lock together in this head-on inelastic collisio: at-68 myr le++o d,wxdpo0mfn. What fraction of the initial kinetic energy is lost in this collision?

A 15-g bullet traveling 213 m/s in a+rm-,tcb;vb b u u)ys+ vertical direction buries itself in a 2.4-kg block of wood a rest directly above it. As a result, the bullet/block combination moves vertic cbum +,-br+;t)uvbs yally 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 )t i5-ujjoz3l90.0 km/h east collides with a 3000-kg car traveling at 60.0 km/h southl5uo )i3-jtz j. 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 km/h east collides ig6dv 76p o2,bsw2ik 05b:o n9auj jyfwith a 3000-kg car traveling at sn ,2:j96goky j7vp2i6 0waob5dbif u60.0 km/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 ged;r urkvbu)9i jrf;jdx( 23k q 2w89moves east with a momentum of 24 kgm/s. Object B mwidu9u (9q28gf 2 bjr;e;3rvjr)kxkdoves north with momentum 10 kgm/s. They make a perfectly inelastic collision. What is the magnitude of their combined momentum after the collision?

  A small bomb, of mass 10 kg, is moving towaryql6l8 g(nx.pd 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 of 1.0 kg. What is the velocity of the third fragment? (Neglect air fricygqn( p 8l.xl6tion.)

  A 4.00-kg mass sits aw 8b ,mv)o*--5vffwpqe clpxx+ q9k /dt the origin, and a 10.0-kg mass sits at x = + 21.0 m. Where is the center of mass on tbeqcv m -9/l opdw*pfkqx 5)x8w- +,vfhe x-axis?

  The center of mass of a two-paqg uty)8c tjclsola.7:)yr .:rticle 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 location os7:yglq tyl cr.)ct: u8) ja.of the second mass of 3.0 kg?

  Three masses are positioned as follows: kw 0h ;k7,joksph57l e 2.0 kg at (0, 0), 2.0 kg at (2.0, 0), and 4.0 kg at (2.0, 1.0). Determine the j,5ks h ;okek077lhpw coordinates of the center of mass.

  Three masses, 1.0 kg, 2.0 kg, and 3.0 kg, are locate ,brl,+qvpp f5t6;yrcd 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 the sysr,b,5yf+ vr clpp;qt6tem?

  A 3.0-kg mass is positioned at (0, 8.0), and a 1.0-kg mass ism.6h0(y p;dw9 .oyz sf qvomz0 positioned at (12, 0). What are the coordinates of a 4.0-kg mass w.zh;. ywvs(6pq0fm ym 0o9 ozdhich 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 a whole legwu7 pg-99w w2aw*ihb.;cry pi including the foot when the leg is stretched straight out. Assume the person is 7bwpi 2apiw 99.gr*;hc wywu-1.60 m tall.