What is the SI unit o t: mr6*y-tfivlx* c3of momentum?

  When a cannon fires a cannonball, the cannon will recoil backward because thrw) pvzzl 6,-qd(.jh je

  A freight car moves along a frictionless level railroad track at constant0mzhhb3fd.v+j 4 imd8 speed. The car is open on top. A large load oh.z3 +d4 0 8fjbmivmhdf coal is suddenly dumped into the car. What happens to the velocity of the car?

  A child falls sideways off a sled while sledxtbnc, d .x8-kding on frictionless ice. What happens to the velocity 8t-x ,.dcx nbkof the sled?

  A rubber ball and a lump of putty have ekln+ - vb2,n0fo4mk-5mt pq ztqual mass. They are thrown with equal speed against a wall. The ball bounces baklm-t n, v+tmp40nbz52f o-qkck with nearly the same speed with which it hit. The putty sticks to the wall. Which objects experiences the greater momentum change?

  A sailboat of mass m is movin.u rlnra-9e;qm 68 zag,eug*yg with a momentum p. How would you represent its kinequneem.9ya gl ug,zar*- 6; 8rtic energy in terms of these two quantities?

  If you pitch a baseball dn9-a w;lnmke)mzpxl fs/:aux9/ 8 z: with twice the kinetic energy you gave it in the previous pitch, the magnitude of its m;amxz elm-w8 /upl):/x k9an z n:sf9domentum is

State Newton's second law in terms of moxl c-phb gx9.bc(/- tl1i rs6mmentum.

State the law of conservationim +/ o wfjyv(q7t38rn of momentum.

  The area under the curve on a 6uc 4did;swxaq/c; 0aForce versus time (F vs. t) graph represents

  Which of the following is an accnw2u1un*kta;pzmn 8bs a s85ua cg)dci0 05o5urate statement?

  A small car meshes with a large truck in a 1gd2it6j emvypvq3o0jt/ + 8 ghead-on collision. Which of the following sm186it j3 pv+dv0goygjeq2/t tatements concerning the magnitude of the average collision force is correct?

  Two equal mass balls (one red an,q;wlmx 3zf,-d m 7fd2jzr6kj d 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 mamxqzdmdl,;,wfr6fzk3 2 - j7 jgnitude of impulse during its collision with the floor?

  A Ping-Pong ball moving east at a speed oftk- c,ghieoov0y* :z jxmskb 425 ( q8ld,zl+e 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 objl:, ,xom zvcg0 qjd5 (leh8* 4tksb2k-+ zoieyect experiences the greater magnitude impulse during the collision?

  Two objects collide and bounce off each other. Lineagck,/ rm8/;0wx tu:se ah(vn x)-vau wr momentum

  A 3.0-kg object moves to the right at 4.0 f 0xbf;jq scx6 3ax,1fm/s. It collides head-on with a 6.0-kg object moving to the left at 2.0 m/s. Which statemac1,ff xjfs3x60x; q bent is correct?

  A 100-kg football linebacker moving at 2.0 m/s tackles head-on an 80-kg halfbao -;bxtgco9 )bck ru)bt-9o;bcxg onning
3.1 m/s. Neglecting the effects due to digging in of cleats,

  In an elastic collision, if the momentum is conserved, then which o-x4zsmm) t,gjf the followingg-4, jtxm) szm statements is true about kinetic energy?

  When is kinetic enersg3e)kxa rx/dmw +h +1o6t(fw4gvq3cgy conserved?

  In a game of pool, the white cue ball hits the #5 ball and stops, while the #5 5 oqvnn,+ l 8rk1)dkm-dcyiikek)1 b;ball moves away with the same velo ;rnbm k ,vyk1lid-d1 ki5ne)oq+c8k)city 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 heavy ecg x 1x:+rv2yq6npa9 :pkmc;s xercise ball at p1n 9p+vary6sxcq gmx 2:c;:k 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 collision with 9*jgd) +5utaxvotkdbl-9v 3 m a stationary bowling ball in a friction-free environment. If the collision is almost perfectly elastic, the sk9 *5d3 ut-a dbmgtjvvo)x9l+peed of the golf ball immediately after the collision is

  A rubber ball with a speed of 5.0 m/s collides head-on elastbdowq5jcxx mdq-lq7 a8 939z 7ically with an identical ball aq3lqwj7xq 7cm 99z bodx 5-a8dt rest. What is the speed of the initially stopped ball after the collision?

  A very heavy object moving with speed v cl,dyi9utn t yaj rp0 ;:h*c0n-i (rd6sollides head-on with a very light object at rest. The collision is elastic, and there is no friyc- n0(addr,t ;h jtp6y*ri0l9u:s niction. The heavy object barely slows down. What is the speed of the light object after the collision?

  A very light object mobg( -pc+ll yr6vc(l a/ving with speed v collides head-on with a very heavy object at rest, in a frictionless environment. The collision is v6cy a -r(l+/cgp(lbl 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 ye no. zzu5w(x;4rlm1 fellow ball of equal mass moving with a velocity of -2.0 m/s. What is the velocity of the yellowrm (neu51;w4z xo.flz ball after the collision?

  A very heavy object moving with velocity v5uumzh i(zg60w 0suk5f c4g 0z 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 of the light object after the collisifm iuh uzc0ggs504(6uz0wk z5on?

  In an inelastic collision, if the momentum is conserved, then which ofd+-2rxfylht+e6gew-6nu + cj the following statements +t+-le6c + udwj-2y6ng exrfhis true about kinetic energy?

  Two objects collide and stickax2) c rk9be3*a7ppww together. Kinetic energy

  A 3.0-kg object moves to t eg;u*lyz0f0nj gfj1)f-jm -b he right at 4.0 m/s. It collides in a perfectly inelastic coll0zf -gmbjyjnlu -eg j1)0*; ffision 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. Whi6 uj,*shaxqmnhw6,vrh 4 ,yn.ch object experiencesqsrn,hhyn66 .w4a mvj,hu* x, the larger magnitude of momentum change?

  In a game of pool, the white cue ball hits thegrs p:f:s55n f1ppv :w #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 of the followivjo tetv-yur::d/u t .85b6 hkng statements is fals:udk vvjtu6 - :8 t.b/eryht5oe?

  Which of the following is a false a 0 v4ffchv4i+statement?

  Tightrope walkers walk with tikez;-v/q*h+jqkd +a long flexible rod in order to

  A plane, flying horizontally, releases a bomb, which explod d;wnj bc*7+wees before hitting the ground. Neglecting air resistance, the center of mass of the bomb fragments, c wbewdn;*j7+just after the explosion

  Two cars collide head-on on a level friction-free road. The qwx-nxlw y +;t1lt6+f collision was completely inelastic and both cars quickly came to rest during the collision. What is true about the veloc +n qwlfxx-l6tty1w ;+ity of this system's center of mass?

State Newton's second law forfl +gg hq)09.fev2k jz a system of particles.

  What is the momentum of a 2000-kg truck traveling at 35 m/sq.524ogs 1lsuj 9wdet?

  A 1200-kg ferryboat is moving soczem f.5ynbe)nxf6d- bhq 6ykm c/66-uth at 20 m/s. What is the magnitude of its momen cc65ee k -bmdnx y/6f.yb6hnm6)fqz-tum?

  A ball of mass 0.10 kg is dropped from a height)29b a yeasp4p of 12 m. Its momentum when it stri ep 24s9aybap)kes the ground is

  Two identical 1500-kg cars are moving per ussbhgui(fehq 8,0 9:pendicular to each other. One moves with a speed of 25 m/s due north and the other moves at 15 m/s due east. Wha:h fq 8guei,s0h(us9b t is the total momentum of the system?

  A handball of mass 0.10 kg, traveling horizontally at 30 m/s, strikes a wal8/ m k ba0jk(zts9 r,qx2+jhwal and rebounds at 24 m/s. What is the change in r2k,q(j /wma08k txbsjza+9h the momentum of the ball?

  A 0.060-kg tennis ball, initially moving at a speed of 12 m/s, is s/zthap(r-dgs( y;; : 7dqc ehhtruck by a racket caqhdh ;derhp-:;(s7 t/( zya gcusing it to rebound in the opposite direction at a speed of 18 m/s. What is the change in momentum of the ball?

  A 50-kg pitching machine (epva/6 q3 mbg*o5albs1 xcluding 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 direction. What is the recoil speed of the pitch qapmsa/lbgvb 3*5 6o1ing machine? (Assume negligible friction.)

  A 70-kg astronaut is space- oh)5mwb55a:; 0y1go xbkpdvhwalking 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 topdh);gb5 51w0 bo:xov5m khayward the capsule?

  A small object with momentum 5.0 kg(w wuo)7:spepd r. n+om/s approaches head-on a large object at rest. The small object bounces straight back with a momentum of magnitude 4.0 kgm/s. Wh)swpe(rn + udp:7wo.oat is the magnitude of the large object's momentum change?

  You (50-kg mass) skate on ice at 4.0 m/s to greet your friend (40kzp:j4;( obs ax2j 2 w)xd wuttj3s:u--kg mass), who is standing still, with open arms. As you collide, while holding each other, with what speed do you both movexsodw t 4 (3:s-2: ukj2pb;axutw)zjj off together?

  A car of mass 1000 kg moves to the right along a level, straight vlmoa4v6red qx :);x0 road at a speed of 6.0 m/s. It collides directly with a stopped motorcycle of mass 200 kg.;q4vmd 0xoe 6 rv)xl:a What is the total momentum after the collision?

  A 1000-kg car traveling at 25 m/s runs 0( jsbaukm:/7mh9 .a uk/iog ainto the rear of a stopped car that has a mass of 1500 kg and they stick together. What is the speed of the cars am um:ia/ su ao/g.bk0(j 9kha7fter the collision?

  A railroad freight car, massapm .9+fmn ot6 15,000 kg, is allowed to coast along a level track at a speed of 2.0 m/s. It collidem6om9p . fnt+as and couples 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 m;8xlo q5 ncchzkm-,*200 kg, rolls with negligible friction on a horizontal track with a speed of 10 m/s. A 70-kg stunt man drops straihxo; 8*5,nlmcck mz-qght 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.ilc/)/9yt(u 2 trugy h80 m/s (with respect to the log). With /l )/uyci(h ytgt 29urwhat speed does the log move, with respect to the shore?

  A 4.0-N force acts for 3.0 s ont+y f(3x+o-egok) 9 cr igky8m an object. The force suddenly increases to 15 N and acts for one more second. What impulse was imparted by these forces to the object)eyk ++3 tgm-ofokc8(iy9rg x ?

  A constant 9.0-N net force ackcn.c:sk0e0mz, 2yu e ts for 2.0 s on a 6.0-kg object. What is the object's change e nkzs:u kc, 02ec0.myof velocity?

  A 2000-kg car, traveling to the right s4 a:ch6-cfb zat 30 m/s, collides with a brick wall and comeas:6b4fch -cz s to rest in 0.20 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. You hit the b/7ny0tz0e m d.z (mwdkall 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 th 7yzw.0/z (en m0dmdkte magnitude of the average force the bat exerted?

  A 0.10-kg ball is dropped onto a table top. The speeds of th59n7( zwfavxuj8(o/l i3and ae ball right before and right after hitting the table top are 5.0 m/s and 4.0 m/s, respectivela7j nz iu/3lfadaow(9vn(5x8y. 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. xaa3zqapg)v .zz2 7sxxtq8630-gram bullets, with a muzzle velocity of 750 m/s, at the rate of 300 rounds per minute. What is the average force exertp3zx .2vqg76t3aa qzx8a s)x zed on the machine gun mount?

  A fire hose is turned on the door of a burning building in order to knock the dm-t:8f sd dz+xoor down. This requires a force of 1000 N. If the hose delivers 40 kg per second, what is the minimum velocit-x:dfsm+td8 z y 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. Itrpz+bypjs aej103z2/8x vqa) falls 3.20 m to the ground. Assuming the water doesn't splash up, whab 0 /28)yv 3jrzp+a aezx1pqsjt average force does it exert on the ground?

  A toy rocket, of mass 0.12 kg, achieves a velocity of 4*qo i (ggz-v4rl g.k(*mho hcpa*5/y e0 m/s after 3.0 s, when fired straight up. What average thrust force does the rocket engine exerty v*z q-il(mc*kopag4rhh*(/o g5g.e?

  Two astronauts, of masses 60 kg and 80 kiutdu*m3 hfmi6r)sj5 4 s 8l-og, are initially at rest in outer space. They push each other apart. What is their separation )mt-6 j8 5s4 rf*miloids u3uhafter the lighter astronaut has moved 12 m?

  A 3.0-kg object moves to the right with a speed1rtag3+e no j p..mvj) 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 kinj3.gja .tv+)1omn erp etic energy after the collision?

  A 0.10-kg object with a velocity of 0.20 m/s in the +x direction mac-oka(g0/k1 su -y o-( l ,oyoo*mrwzlkes a head-on elastic ,o wc0y- ka(r*kuyl l-1oo-om/zos( gcollision with a 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 1.00-kg bm 5mvitq.7f;xzu; 8i cq5pza ,lock at rest. The bullet emerges (the bullet does not get embedded in the block) witaq5qzzt.x7pm;;mi58vi f u,ch 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-e1m9 7p0lk benon by an alpha-particle (which consists of 2 protons and 2 neutrons) moving at speed v. If thkbee9 0 pl71nme 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 with a stationa5rrz v 0-z3briry ball of mass 100 g. The collision is elastic. What is the speed 5rb zzi3r-0vrof each ball immediately after the collision?

A ball of mass 400 g moving toward the east with a speed of 3.70 m/s coll2k wp ztbyw. m:iy;:f 6w0msh;w5gp5 eides head-on with a 200 g ball sitting at rest. The collision is perfectyw ;0pe w m5p; 6bzftk2siy:whm5. wg:ly 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 headu8870 w vvwcfy-on with a 3.0 kg mass at rest. If the collision is perfectly inelastic, what is the speed of the m f vwu8vyc80w7asses after the collision?

  A 2.0-kg mass moving to the east at a speed of 4.0 m/s collides head-on inmhzq3u a1 )uhh(9z p-v a perfectly inelastic collision with a stationary 2.0-kg mass. How much kinetic energy is l9azu qz1)3hm-puhh(v ost during this collision?

  A car of mass m, traveling with a velocity v, strg-/teeb6 w zba: p5a1jikes a parked station wagon, who's mass is 2m. The bumpers lock together in e15b g/e bpjwa6a:zt-this head-on inelastic collision. What fraction of the initial kinetic energy is lost in this collision?

A 15-g bullet traveliz5zf1l x0-rk jng 213 m/s in a vertical direction buries itself in a 2.4-kg block of wood a rest directly above it. As a result, the bullet/l10-xzfkj r5zblock 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 30008r.vddgwgi 6 :v*c.sc-kg car traveling at 60.0 km/h south. The two cars stick together after the gc* 8d vgsrvc..:wi6dcollision. (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-kg car traveli2xsux,vof aa 2 )cx0j -eb-*sfng at 60.0 km/h soutxosbf 2j0-2a fxx s*)c ,evu-ah. 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 move5k,g3e/w3wz/: vk g x3uexnyas 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 collisio x3e/ kwxg3:wuge/3 kay,5nzv n?

  A small bomb, of mass 10 kg, is moving toward thojp/)o lmeej9;4w8ae e 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 ;aj)lweo o 9/ p4jm8eethe 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* g 4v( *brwti45nno cxuckq5/.0 m. Where is the cvng/u(ccr4wb qi54*x 5 *ntokenter of mass on the x-axis?

  The center of mass o+i3-pqz qpy ,be5j5v df a two-particle system is at the origin. One particle is located at (3.0 m, 05yqvp,ebp- iqz+3d 5j ) and has a 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 aj1i/cqqz3 5f zt (0, 0), 2.0 kg at (2.0, 0), and 4.0 k zj5 /i1zfq3qcg at (2.0, 1.0). Determine the coordinates of the center of mass.

  Three masses, 1.0 kg, 2.0 kg, and 3.0 kg, are located at (0, 0), (1. r+si6djehf a:h79,zeyg0w v 70 m, 1.0 m), and (2.0 m, -2.0 m), respectively. W svez+igwjh ay:67f 097er, hdhat is the location of the center of mass of the system?

  A 3.0-kg mass is positioned3wnyl kh tjj,*y0u6l , at (0, 8.0), and a 1.0-kg mass is positioned at (12, 0). What are the coordinates of a 4.0-kg mass which wjyn6*hjt,y3 0u ,l kwlill 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 thevv1i *w6 5p1 0s8hjwhwuuefd* CM of a whole leg including the foot1* 6p1j wh8sidwf h*vu 5u0ewv when the leg is stretched straight out. Assume the person is 1.60 m tall.