What is the SI unit of momentumoi. kjxt4 ,/4k-u toak?

  When a cannon fires a cannonball, the ca: ijz, )2gwv0nn.ueifnnon will recoil backward because the

  A freight car moves along a frictionless level railroad trhe b dt3q*q bql1(c5zw(;6z.awbqbi0ack at constant speed. The car is open on top. A large load of coal is suddenly dumped into the car. What happenq6b(.5qd (*z q1ihbe q cl3w tba0bwz;s to the velocity of the car?

  A child falls sideways 9( cj3 se1o+-k4fe ;dpuhvrar off a sled while sledding on frictionless ice. What happens to trhuev;f(k + 49s -rej31adoc phe velocity of the sled?

  A rubber ball and a lump of putty have equal mass.l g7;qe+cy g6 esta.n1 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 ; ae1qgg 7nytc l6.+sewall. Which objects experiences the greater momentum change?

  A sailboat of mass m is moving with a momentum p. How would you reprwao*j4 p 20lvr5ft7 fiesent its kinetic energy in terms of these two quanoftj av*2f5pli40rw7 tities?

  If you pitch a baseball with twice the kinetic energy you gave i iwlu5o yg+03ft in the previous pitch, the maggi0+ lyw 3o5funitude of its momentum is

State Newton's second law in terms of momena7 6 ,lian:lsvtum.

State the law of consq *a;,pv yguvw ygi;mm091) tmervation of momentum.

  The area under the curve on a Force vc( 2m.cmq3e; q;c h yxfzm05ejersus time (F vs. t) graph represents

  Which of the following is an accu,;fcxwt fnf4 pbn8g*-rate statement?

  A small car meshes with a large truck in a head-on /4zymlk;d3t r collision. Which of the following statements concerning the magnitude of the average collist 4/yrzd ;k3mlion force is correct?

  Two equal mass balls (one redhxp/ m ji8.8+qgc,aqycn3 f)q 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 the greater magnit+cnh.g mqpx 3i)a 8j,fy8qc q/ude of impulse during its collision with the floor?

  A Ping-Pong ball moving east at a speed of 4 m/s, collides with aclqrs4- x.9 mqqs0o dq *5wbu+ stationary bowling ball. The Ping-Pong ball bounces back to the west, and the bowling ball mx*m us b.q5o0qrswq +9l qcd4-oves very slowly to the east. Which object experiences the greater magnitude impulse during the collision?

  Two objects collide andy+:8vb ) gd(rqic q-cf bounce off each other. Linear momentum

  A 3.0-kg object moves to the right at 4.0 m/s. It co8o8zv 5 sk 4eqku76gkgllides head-on with a 6.0-kg object moving to k75go q8vs g4ekz86u kthe left at 2.0 m/s. Which statement is correct?

  A 100-kg football linebacker moving at 2.0 m/s tackles head-on an 80-.z pl9)c aeo3kkg halfback runningoap 9kecz 3l).
3.1 m/s. Neglecting the effects due to digging in of cleats,

  In an elastic collis s;h( k4, e,lnxxri9wyion, if the momentum is conserved, then which of the following stateme4e 9i yn;rxkx(s ,wh,lnts is true about kinetic energy?

  When is kinetic energy consebz-*kp0xto5en7v uz t--:mp vrved?

  In a game of pool, the white cue ball hits the #5 ball and stops, while tmii7p aw g50 .mtf:l+phe #5 ball moves away with the same velocity as thepalti.i m g0+wmf p75: cue ball had originally. The type of collision is

  When a light beach ball rolling with a speed of 6.0b6kzz li6kcq1v0 ja 0( m/s collides with a heavy exercise ball at rest, the beach ball'silbzzq 06 v6ja0c(1kk speed after the collision will be, approximately,

  A golf ball traveling 3.0 m/s to the right collides in a head-i4xtc mbb hg39 hk91l9on collision with a stationary bowling ball in a friction-free envirc34kh x99blhb gi19t monment. If the collision is almost perfectly elastic, the speed of the golf ball immediately after the collision is

  A rubber ball with a speed of 5.b;;gt1 cn bu .vxlojk3 ax6n x3bt-*:b0 m/s collides head-on elastically with an identical ball at rest. What is the speed;bk a xgto3 xulnbv xt*:n-.;b6c3j1b of the initially stopped ball after the collision?

  A very heavy object moving with5llie7uj(qq +hb ov *bab6-l(mpd 8u5 speed v collides head-on with a very light object at rest. The collision is elastic, and there is no friction. T dv8l67 oa (*uue bip+mh-b5j bqql(l5he heavy object barely slows down. What is the speed of the light object after the collision?

  A very light object moving with speed v collides o6 b cab7r9it 3osro;5head-on with a very heavy object 6ir bboroo;c7 a9t3s5at rest, in a frictionless environment. 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 eqpn;vdfwbxt 15: 6n7hyto. w m4ual mass moving with a velocity of -2.0 m/s. What is the velocid1nv o wh 56t4pxbyf:7m tw.n;ty of the yellow ball after the collision?

  A very heavy object moving with velocity bs/: f+yx b2gnwt1hc3v collides head-on with a very light object moving with velocity -v. The collision is elastic, and thergbh s + bfxw:nt3yc/21e 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, then5v,b oqib-n1z z7,r tg which of the following statements is true about kinetio,-15tr7g vniqbzb z, c energy?

  Two objects collide ag5gbj(43 ozib nd stick together. Kinetic energy

  A 3.0-kg object moves to the righteivg v oah13h *4:l-ao at 4.0 m/s. It collides in a perfectly inelastic colliv*g:- l3ha1 ovaieho4sion 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 withqtdf9(3y oa 2u )jmc0m a large object and sticks. Which object experiences the larger magnituqfc 3mjou t()yd9m0 2ade of momentum change?

  In a game of pool, the white cue ball hits the #9 ball and is deflected a3r6kabli ks. i4n kf*j lgn)5.t 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 avu(o ng 9-/ :xci2ghvof the following statements is fals :i 9u/vg(gah-v2 xcone?

  Which of the following is a fals*h96/ /s s dk s.jbgdp5q8vb(wva9ptve statement?

  Tightrope walkers walk with a long flexible rod in order r7oegdzs,s)b-4gv v 0 to

  A plane, flying horizontally, releases a bomb, )0y7/axy/9yj zt+ mfknw)by m which explodes before hitting the ground. Neglecting air resistance, the center of mass of the yw/j7zyfm+n)/atmy9 0bxk y) bomb fragments, just after the explosion

  Two cars collide head-on on a z6sb9o5mi.tje1(x ; zz. fynblevel friction-free road. The collision was completely inelastic and both cars quickly came to rest during5e1fi( zz.by.9no6jms xzbt; the collision. What is true about the velocity of this system's center of mass?

State Newton's second law for;g7bnz s93nvr(a nx/p a system of particles.

  What is the momentum of a 2000-kg truck traveling q ( 2fqp3p-htpyt. 7(a to-cqaat 35 m/s?

  A 1200-kg ferryboat is*jx h 3dxfet0: y0gm-c moving south at 20 m/s. What is the magnitude of its momen 3d*etfj0:0g m y-xxhctum?

  A ball of mass 0.10 kg is droppede,+6 qwwiol,kt 90nk j2eg4by from a height of 12 m. Its momentum when it stg,w 4,ly9+n26eik0ejwkq b otrikes the ground is

  Two identical 1500-kg cars are moving perpendicular to each othaax8qr a3,x lw0bx,/zer. One moves with a speed of 25 m/slaa,zxxq8/3,r awx0b due north and the other moves at 15 m/s due east. What is the total momentum of the system?

  A handball of mass 0.10 kg, traveling horizont(3gk j1f lfb7v2mx: ntally at 30 m/s, strikes a wall and rebounds at 24 m/s. What is the change in the momentum of3v2fgt xnbjm7k : lf1( the ball?

  A 0.060-kg tennis ball, initially moving at a *j-dhmx4pn mepr h:5haub.;a4ys++i speed of 12 m/s, is struck by a racket causing it to rebound in the opposite direction at a speed of 18 m/s. What is theai;*u:r d+45nh.py -p4h m ehxa smjb+ change in momentum of the ball?

  A 50-kg pitching machine (exclu.4z) y(aaozfn ding the baseball) is placed on a frozen pond. The machine fires a 0.40-kg baseball with a speed of 35 m/s in the horizontal direct)a4azofz.y ( nion. What is the recoil speed of the pitching machine? (Assume negligible friction.)

  A 70-kg astronaut is spacex;*uf-nhppj 5 -walking 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 ph5puxn-j f;*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-o me+x6th -n-soib:e7qn a large object at rest. The small e xmiqbt+-7:h nes6-o object bounces 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 ir)ubaes 9 s)k88 ,wxyur1)fw fce at 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,efa9br u)yw88sfkr1,x) w)u s with what speed do you both move off together?

  A car of mass 1000 kg moves to the right along a level, straight rok5i9x,l ki uxu++(i kui6: odoad at a speed of 6.0 m/s. It collides directly with a stopped motorcycle of mass 200 kg.i,iuko( +ux9d:ilk6 ku o5i +x What is the total momentum after the collision?

  A 1000-kg car traveling at 25 m/s runs into the rear of a sp6w 00;)r:yydr d mfqmtopped car that has a mass of 1500 kg and they stick dy6y:m0w qr;pm rfd) 0together. What is the speed of the cars after the collision?

  A railroad freight car, mass 15,000 kg, is allowed to coast along b:gyh2 evt1)dle 8,yea 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. What is 1g ve 8yhble: ,)yd2tethe speed of the two cars after coupling?

  A railroad car, of mass 200 kg, rolls with negligif-8/yo z87oasuzgk+ q:v9t.s cvo , eible 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, qfkyc98+7zg8uti:ova,z/ seoo - .vs 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 respect nvt j,t-n20o dto the log). With what speed ddnovn -t,0jt2 oes the log move, with respect to the shore?

  A 4.0-N force acts for 3.0 s on an object. The forc:4pmalhj ,sh. e suddenly increases to 15 N and acts for one more second. What impulse p s.hmh,4la:j was imparted by these forces to the object?

  A constant 9.0-N net force acts fsvl*)4ly ob n7a6fla ( ,mlv8t o-kvx1flv) 8ror 2.0 s on a 6.0-kg object. What is the object's 8lo6b()7v)mv,4vlaa1vxykt- * fflrlso l8n change of velocity?

  A 2000-kg car, traveling to the right at 30 m/s, collides with a hg c4 *f)v1fk 4l, bj(yohnpj.kz)m7ubrick wall and comes to rest in 0.l*fh47 jy(k pmfhj))1c4n bzgov.k,u 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. Yo5,rvn7 nc/63t myp jhqu hit the ball back along the same path, and at the same speed. If the bat wancn5/76tq yr3h , pmvjs 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 04j k956;nr*l ws/wy2f8 hbequieavstop. 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 tr n9y ;8kwjfel0h5i 2wsqua/6 4s*ebvhe 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, wig1grldp(v 42eibeu3 /:qm a-ath a muzzle velocity of 750 m/s, at the rate of 300 rounds per minute. What is the avpv4ul(ag :/b1i- e2edr3qga merage force exerted on the machine gun mount?

  A fire hose is turned on t nw4rw+mx,-6thg0c cxhe door of a burning building in order to knock the door down. This requires a force of 1000 N. If m+r-ntxw0x,wcc g6h4 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 at the rate of 120 kg per minute. It jng9s(;kgfvuvq1)o( 01jg fc falls 3.20 m to the ground. Assuming tj0gogs v 1(;qf (c)1 9gnufjkvhe water doesn't splash up, what average force does it exert on the ground?

  A toy rocket, of mass 0.12 kg, achieves a bqn a;-nci1agg9xyut8 ulvm 1454gj8velocity of 40 m/s after 3.0 s, when fired strag aubgigt548x8vm n-1u j 1a9qy 4c;lnight up. What average thrust force does the rocket engine exert?

  Two astronauts, of masses 60 kg and 80 kg, are z2cg7ao 6n ;7im4zlww 8 zgaagls*7t2initially at rest in outer space. They push each other apart. What is their separation after the lighter astrongt7*zcn7m gi ;wwg8zlaas67lz2a2 o4aut has moved 12 m?

  A 3.0-kg object moves to the ruw d8u/x)ji0 zight 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 kinetic energy after)d/jw08 uu ixz the collision?

  A 0.10-kg object with a velocity of f6myn1:jx n1c 0.20 m/s in the +x direction makes a head-on elastic collision with ancn1mx j6 y1f: 0.15 kg object initially 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 a 10 upfwjo:u 9s /ei3r69ys-jde.00-kg block at rest. The bullet emerges9s6- w yf9 eu/:0iorj3updje s (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 rest, is stov5ey9 t8sb4u8bv 8tmruck head-on by an alpha-particle (which consists of 2 pot8 t9mes4 5ubv8b8 vyrotons 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 the proton's mass.)

  A 50-gram ball moving +10 m/s collides head-on w+p8 ki1vl 5gxfz sbrfu630owhq ,. 3glith a stationary ball of mass 100 g. The collision is el.x+swu3 gflbo5v , rfhgl3 zi1q8k0 p6astic. What is the speed of each ball immediately after the collision?

A ball of mass 400 g moving toward the east with a speed ofmjl mo9o c6m+t. ssn5/ 3.70 m/s collides head-on with a 200 g ball sitting at rest. The collismj. 69lt+ smm /nosoc5ion 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 collides h7koc8:al:az9a3t qc4d0pi3r6 oky ar ead-on with a 3.0 kg mass at rest. If the collision is perfectly inelastic, wdo3 lo cikp:69 ky07 3rq:4 racaat8zahat 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 collides head-on in a0j +l+zdxur0e/6:grzt+dc,f nygr o + perfectly inelastic collision with a stationary 2.0-kg mass. How t+ dlg+enur/xz,rc j+zyr0 6+fg od:0 much kinetic energy is lost during this collision?

  A car of mass m, traveling with a velocity v, strikes a parked station wagon, + -ujyk)kv,so2(bf xum-(y odwho's mass is 2m. The bumpers lock together in this head-on inelastic collision. What fraction of the initial kinetic energy is lost iko-s+o,mjky dv-y(xu)f2u b(n this collision?

A 15-g bullet travel.emoa -- lshy4,6sdaling 213 m/s in a vertical direction buries itself in a 2.4-kg block of m- -h4 a, laodls.6seywood a 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 collides with a 3000-kg car travelinzimn csz7kx)0 bj25+ng at 60.0 km/h sou x kn2c0z)mj+7b nszi5th. 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 with a 3000-3yz io7s go/)d8+dsm rkg car traveling at 60.0 km/h south. The two carsd dys+3)o/sgzmori7 8 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.pqv:9 b0q2r- o) mkosl0 yo7er;3nxg h 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 kre3mbo7pq9 nlgrvox2 y0s q;h 0-o):momentum after the collision?

  A small bomb, of mass 10 kg, is moving toward the North with 75x.rtyb w1*eyeexq7 a velocity of 4.0 m/s. It explodes into three fragments: a 5.0-kg fragment mrb.y 7e7yt15ewq*xx eoving 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. b oydynepj ml5:b1 884Where is t obdy5m1j8 :ebypn 8l4he center of mass on the x-axis?

  The center of mass of a two-particle system is at the origiyo)fgji i7f+qw:+ (t wn. One particle is located at (3.0 m, 0) and has a mass of 2.0 kg. What7yo iw + wgftj()+:fqi is the location of the second mass of 3.0 kg?

  Three masses are position-x w5ek;ns1n4ie2+x4 lb+ jf hkem gv7ed as follows: 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 of mase5bxkn+vg x jes4m+le; wi14hfn27-k s.

  Three masses, 1.0 kg, 2.0 kg, and 3.0 kg, are locate zc;h3nmr)enbs(4j:g0 zg og1d at (0, 0), (1.0 m, 1.0 m), and (2.0 m, -2.0b10m(g jhezrng ):3nosg;c4z m), respectively. What is the location of the center of mass of the system?

  A 3.0-kg mass is positioned at (0, ell :r1gr1 o orcx t5f9m63fa+8.0), and a 1.0-kg mass is positioned at (12, 0). What are the coordinates of a 4.0-kg mass which will result in the center of mass of the system of three mass9r1 orl :x 15otfmfc6ra+3 glees being located at the origin, (0, 0)?

  Use Table 7-1 to calculate the position of the CM of a whole l uwqu5:rkm+ v1eg including the f+:ku5wu1 r qmvoot when the leg is stretched straight out. Assume the person is 1.60 m tall.