What is the SI unit of momentuq-w ist sxf23ecw1vp/j/ (y r6m?

  When a cannon fires a cannonball, the cannon will reco7tofx,2, nsk ouxh,f1sg: 3n zil backward because the

  A freight car moves along a frictionless lev7*asia 1fes.(k7 x+ :dlgqyizel railroad track at constant speed. The car is open on top. A large load 7d1 . iaqa iksyf:e+*g(xzs7l 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 fr ecl ); rnok0qdi-s(j1ictionless ice. What happens to the velocity oolds c;k( e1qr )0nij-f the sled?

  A rubber ball and a lump of putty have equal mass. Thexh9ns 746qq ryez+u 6fy are thrown with equal speed against a wall. The ball bounces back with nearly the same speed with which itqx6 4nf7ueqz+s yh6 9r hit. The putty sticks to the wall. Which objects experiences the greater momentum change?

  A sailboat of mass m is moving with a momentum p. Ho kztr/w z lq-8rtc+m9v0 j6pk;w would you represent its kinetic energy in t q6-/;pkzjzmwvlr9c8 t k0r +terms of these two quantities?

  If you pitch a baseball with twf 2e+i/ py*k8u1 nu7.z hbngtx0hej p/ice the kinetic energy you gave it in the previous pitch, b/e ft7+pp* h8 2j y.u 1kexnu/ig0hznthe magnitude of its momentum is

State Newton's second law in tek *nt.g-vil/trms of momentum.

State the law of cons ktx iyv,rw7+l9ojsfo+;+qa*ervation of momentum.

  The area under the curve on a Force versus time (F pqfd jvc3ex1w(6wn1j37c0:s6qf q tfvs. t) graph represents

  Which of the following ise6(.ze1 -vh2 rmn jnvuzfjz/1 an accurate statement?

  A small car meshes with a large truck in a head-on collision. Which 18sme py /ve+vquj,3+j ji7f1i 8nasa of the following statements concerning the magnitu v3qsa1i8 j+pye ji817usf em+a,j /nvde of the average collision force is correct?

  Two equal mass balls (one red and the other blue) 8a* gukt: whgi/ -urd,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 magnitude of impulse during its collis:-g*g8 t drkuua/,wh iion with the floor?

  A Ping-Pong ball moving ea9sv7izg/sc i1 st at a speed of 4 m/s, collides with a stationary bowling ballgs9z v1/c7 sii. The Ping-Pong ball bounces back to 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 ola. mu3uer-6ftv0s d6ff each other. Linear momentum

  A 3.0-kg object moves to the right at 4.0n.de;ij6 n 6e yv)g*y qwejuz y0;n/q0 m/s. It collides head-on with a 6.0-kg object moving to the left at 2.0 m/s. W /jyy;q)zg dy;u.e60 jw6e ivnqn* e0nhich statement is correct?

  A 100-kg football lineba 8lv,gf;3s ksicker moving at 2.0 m/s tackles head-on an 80-kg halfback rungk8 slf3vs ;,ining
3.1 m/s. Neglecting the effects due to digging in of cleats,

  In an elastic collision, bjd xw714t2d;s b-vkdif the momentum is conserved, then which of the following statements is true about kinetic en4swtk 72d1jbdv xb d;-ergy?

  When is kinetic energywge vys 0l8;6y conserved?

  In a game of pool, the white cue ball hits the #5 ball and stops, while the #gv)3cy4xfn5cl n3 ,rr5 ball moves away with the same velocity as t5y3 rg fnxnv3 r4c,l)che cue ball had originally. The type of collision is

  When a light beach ball rolling with t:bd d:1t egk*;l8kj ca speed of 6.0 m/s collides with a heavy exercise ball at rest, the beach ball's speed after the collision bc;8t:kd*kjgle : d1twill be, approximately,

  A golf ball traveling 3.0 m/s to the right collides in a head-u2hc g -auu6w9mir4 t-on collision with a stationary bowling ball in a friction-free environment. If the collision is almost perfectly elastic, the speed of the gol9r-umwui4t 2c-g 6ahu f ball immediately after the collision is

  A rubber ball with a speed of bxgg*xrjzbt95 + . ,ui5.0 m/s collides head-on elastically with an identical ball at rest. What is the speed of the initially stopped ball after the col*9b.r tb5uz ji, +xggxlision?

  A very heavy object moving with speed v collides head-on with a very light oxd , nxfu ooq9,+pc0d3bject at rest. The collision is elastic, and there is no friction. The heavy object barely slows down. What is +udd03ocno,xx , q fp9the speed of the light object after the collision?

  A very light object moving with speed v coll3 nnj a65trhn3ides head-on with a very heavy object at rest, in a frictionless environment. The collision is almost perfectly elastic. The speed of the he3jnn6 ht5a3rnavy object after the collision is

  A red ball with a velocity of +3.saokunq:7ua4 j .7u woxu-, c70 m/s collides head-on with a yellow ball of equal mass mou oqu7-juw7u sk4ac :,7no xa.ving with a velocity of -2.0 m/s. What is the velocity of the yellow ball after the collision?

  A very heavy object moving with velocity vvt i/g8+ ef)co,w9mzo862 orjroj*ev 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 speoc9 , 86t)*o/wee jforzvi8o jmgv 2r+ed of the light object after the collision?

  In an inelastic collision, if the momentum is conserved, then whijt. t7.wmyddj;n j j9-f)vekco/(xb 9 ch of the following statements is true about ki; m/kb. v9x97 jo.e)yd( t-ntjjdwfcjnetic energy?

  Two objects collide anegroz0v (es-1 )6qu;o ev3ssnd stick together. Kinetic energy

  A 3.0-kg object moves to the right at 4.0 m/s. It collides in a perfect.q57fq8d)vs .- hjp l,t adnsqly inelastic collision v.pj) dshaftq.q d,-8 75 snlqwith 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 anx::a u5d3zw qgd sticks. Which object experiences the larger magnitude of: :5gwdzuxa3q momentum change?

  In a game of pool, the white cue ball hits the )),ohgj,iavc9o u p vfcm/49s #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 following statement3qf-cw96f 3amqu6yqi/ sqx 0is is falss6 3mawiqq3/qcu96 - f0ify xqe?

  Which of the following is a false soswdnjg( w7zx(j3/r -tatement?

  Tightrope walkers walk wit5s*gl7 k-*l1o- ,;uxmiy+rv bdq8z 0 oawvtoah a long flexible rod in order to

  A plane, flying horizontally, releases a bo2*bro4+d(*x xnplv ek mb, which explodes before hitting the klebnox r2d*4v +p *x(ground. Neglecting air resistance, the center of mass of the bomb fragments, just after the explosion

  Two cars collide head-on on a levnf3s 6e5z cvbyr1*q) sel 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 center of m6y r sfn1eqzv*b3 )sc5ass?

State Newton's second law for a rz.g+b56ded6l) y rtydm7d0f system of particles.

  What is the momentum of a 2000-kg truck j 4/ jea l/v(5v*nty+rsfiy.vtraveling at 35 m/s?

  A 1200-kg ferryboat is sav)q3oz *u yd p+1sdj-l,9wqmoving south at 20 m/s. What is the magnitude of its momenu,sl1 yvq9) 3jpsw*+zq a-oddtum?

  A ball of mass 0.10 kg is dropped from a height of 12 m. Its momentum when i lqf58g2ygs 99ewvbwr)-gl+ u t sws g2l 8u9r fggv)be+w-ylq9 5trikes the ground is

  Two identical 1500-kg cars are md+qmv a) ,1(yixsf q3 jncd/-boving perpendicular to each other. One moves with a speed of 25 m/s due north and the other moves at 15 m/s due east. c qy ai3vm(x+qb,dsfndj-1 )/What is the total momentum of the system?

  A handball of mass 0.10 kbv:d d *;0 ( u)usfcxix2ct-to--vid cg, traveling horizontally at 30 m/s, strikes a wall and rebounds at 24 m/s. What is the change in the momentum ofbu0;uc-2 x)oid fdvtx*(d -v:t si- cc the ball?

  A 0.060-kg tennis ball, initia:w z87edgqd( ally moving at a 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 the change in momentum of the baladw(7dze:8gq l?

  A 50-kg pitching machine (exclus 0gmonnb uuf b1zt0 n0/-0);ja1wstnding 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 horizont1tu /n0mb 0snwn zo n0tfjb;-s1gu )a0al direction. What is the recoil speed of the pitching machine? (Assume negligible friction.)

  A 70-kg astronaut is space64/w x ap 68f1kph vorm.t.pyg-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 hamme 6 /w16.p.g8otp ar4kymxhpfvr 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 mome( i;y t1x v//ivf7kpphntum 5.0 kgm/s approaches head-on a large object at rest. The small object bounces straight back with a momentum o p x(fip/y7v /i1kvth;f 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 gre+yw3sv1cyh asqxj 2gn 3hs)86 et your friend (40-kg mass), who is standing still, with open arms. As you collide, while holding each other, with what speed do you both move oajcsh3n6 1vg32hw+8x y qs )ysff together?

  A car of mass 1000 kg moves to the right along6e8qbpg6m z4 j a level, straight road at a speed of 6.0 m/s. It collides directly with a stopped motorcycle of mass 200 kg. What is the total momentum afte84p qez6gmbj6r the collision?

  A 1000-kg car traveling at 25 m/skjc *-j7f r:b.nxui; e runs into the rear of a stopped car that has a mass of 1500 kg a f:n;c* b.e-jk7xurji nd they stick together. What is the speed of the cars after the collision?

  A railroad freight car, mass 15,000 kg, is allowed to coa: bc+l gaa 27 h3yiic2lra/b.ast along a level track at3icylla .aibaa +gb:/ 2r7c2h 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 the speed of the two cars after coupling?

  A railroad car, of mass 200n-*ikji rym. mm9 1gm( 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 *m1 kmrmym.9i-gn(j iwill 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 (witr gt y1 -7s:v0xi*hxjk o0mbs/bc+j e/h respect to the lt *i07ch y jjb0kgem/:srx/xo 1v-s+bog). With what speed does the log move, with respect to the shore?

  A 4.0-N force acts for 3.0 s on an object. 9m w7+rw;tc:p mjf. wa The force suddenly increases to 15 N and acts for one more second. What impulse was imparted by these forces to the.mar;w f:+m7wpt jc w9 object?

  A constant 9.0-N net force acts for 2.0 s on a 6.0-kg object. What is tctq(uz22v- bwzg x-b4he object's change of vq4(ztbgv2c 2-wbz -xu elocity?

  A 2000-kg car, traveling to the right at 30 m/s, collides with a bric 8otvz8d0v6-ad a2,66h(amau c hkmgyk wall and comes to rest in 0.20 s. What is the average force the car exerts on th,vgku hmcam6t ah8( dv0 8az 6y-2aod6e wall?

  A 2.0-kg softball is pitched to you at 20 m/s. You hit tacak;pq( hch8(hr;8 l- -c;jriyusdebj / ,p+he ball back along the same path, and at the same speed. If the bat was in contact wic8(eka(8q;p / y; sl-ab u;pc- jicdh rhhrj+,th 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. The spe*j9 8ct;o6gw +rie cseeds of the ball right before and right after hitting the table topcj8io6w rg+ec;s *te9 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 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 bm2itc/.8dc lph5s(j xullets, with a muzzle velocity of sx8d ip/cm2t.cl5jh( 750 m/s, at 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 bve0xm (mntf02z5d *hmurning 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't bounce 2tdx5vm mf(n00hme * zback?

  Water runs out of a horizontal drainpipe at the rate of 120 kg per minute.*vho9k5 6bosq6l ,o )ts7)pv0x kgaog It falls 3.20 m to the ground. Assuming the water doesn't splash up, what average force does it exert on the group5 h ko)s*xtaov6gk79 , obql6)osgv0nd?

  A toy rocket, of mass o; y29i(zrw.dbxiew 5xc2av+d amr 24 0.12 kg, achieves a velocity of 40 m/s after 3.0 s, when fired straight up. What average thrust force does the rocket engiy5aio9we;2 wbrmaxci z+x( 4 rd2vd.2 ne exert?

  Two astronauts, of masses 60 kg and 80 kg, are initially at rest in outer spw;wiet:h4k.xq0 c x 2qace. They push each other apart. What is their separation after the lighter astronaut has moved 1wqck4 0hqix;2wt. e:x2 m?

  A 3.0-kg object moves to the right with a speed of 2.0 m/s. I6 vnfl g ge1/l.d4d.j/ nnpv,mzgl8s5t collides in a perfectly elavzv n51jl4 dn6lg8 lmfd./sg.,/pnegstic 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 vel3b 31xh lgib1xu -xnv0lb (v)r ei8h9socity 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 is the final velocity of the 0.1 xvxinu1l8b3-hvb9ih 0e)(x 3rb gls10-kg object after collision?

  A 10.0-g bullet moving at 300 m/s is fi9i4rzb3lawa: rzu/ 4 dred into a 1.00-kg block at rest. The bullet emerges (the bullet does not get embedded in the block) with half of il4aauw9 /4rdb r3izz:ts 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-particle6rl )xr x1f)s.+xjt,- qjucwu (which consists of 2 protons and 2 neutro,uuxrj t -xrj c6f)s.lw1)+ qxns) 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 with a stationary ball of mass 2c gk,n*lg-z) 0u8sg uim4ggb 100 g. The collision is elastic. What is the speed of each ball immedias ,2*gn cbgg lkmz8guu) 0-4gitely after the collision?

A ball of mass 400 g moving toward the east nak1:fje5*o i with a speed of 3.70 m/s collides head-on with a 200 g ball sitting at rest. The collision is perfectly elasti:*i ako5jf1 nec.
(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 coll z9kxv x l/ikxd -8q*vbzgb8,0ides head-on with a 3.0 kg mass at rest. If the cxkkigb,8bqv /vlxz9-d8 *0 x zollision 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 collides head-on in a yh7,+, y 7vbujztks4wperfectly inelastic collision with a stationary 2.0-kg mass. How much kinetic energy is lost dtk7syyb,+4v hu,j7zwuring this collision?

  A car of mass m, traveling hyg teev/ -q05( b(bdwjahx(yr +9wr3with a velocity v, strikes a parked station wagon, who's mass is 2m. The bumpers lock together in tjq( (t +yb- e3h5wbwe9/ryd(0xv ar hghis head-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 itself in a 2.40 8z .kn/(i 0(qwth6vxusmubz -kg block of wood a rest directly above i /vqm0 zuws60x8 .(nbz(ihtuk t. 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 8 a0wn.ad: qnmpx:trj)xvz8e9ucfo9;4 l ) pecollides with a 3000-kg car traveling at 60.0 km/h south. The two cars stick toget8lfm e zw:e)a n)uv0pxp 4c98n ;a q:rjx9o.dther after the collision. (See Fig. 7-1.) What is the speed of the cars after collision?

  A 1500-kg car traveling vv67 04tif(fef g5; xl vflwd:at 90.0 km/h east collides with a 3000-kg car traveling at 60.0 km/h south. The two cars stick together after the collision. (See Fig. 7-1.) What is the direction of motion of the catf 4de75f i (gvlxv0:v f;6wflrs after collision?

  Two objects move on a level frictionless surface.egks /4.hx ;ja9iq f8t Object A moves east with a momentum of 24 kgm/s. O .fhsat8/ kgi9x ;ej4qbject B moves 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 100:n* dr ljkxe( kg, is moving toward 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 thx (rnjd0*l ek:ird 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 thp4q dht .q.h6ye origin, and a 10.0-kg mass sits at x = + 21.0 m. Where is theq6.qp4dy t h.h center of mass on the x-axis?

  The center of mass of a two-particle system is at the origin. One 9oxv wd*gf3na j/d ,mcaym er/,1l/q8particle is located at (3.0 m, 0) and has a mass of 2.0 kg. What is the locat /lao8y/ /xc , v39amg1*fqdnw,jredm ion of the second mass of 3.0 kg?

  Three masses are positioned as follows: 2.0 kg at (0, 0), 2.0 kg at (2.0, 0)tvh/lf8ydjccr +8g 6/4pzj+q , and 4.0 kg at j/vc/cgjl+ 8 tz+d 4pyq8rf6h (2.0, 1.0). Determine the coordinates of the center of mass.

  Three masses, 1.0 kg, 2.0 k/j f8 fqqek ct0+vl:x6g, and 3.0 kg, are located at (0, 0), (1.0 m, 1.0 m), and (2.0 m, -2.0 m), respevj+le 0:cqk6tfxf 8q/ctively. What is the location of the center of mass of the system?

  A 3.0-kg mass is positioned at (0, 8.0), and a 1.0-kg mass is pofy,ne,e.w s1k:fl*ypa;la :e/l : ut lsitioned at (12, 0). What are the coordinates of a 4.0-kg mass which will result in the center of mass o pfu:a l:tnl ale kf e,yl1*,;:wy.es/f the system of three masses being located at the origin, (0, 0)?

  Use Table 7-1 to calculate the po+qi+ h*hqga;xsition of the CM of a whole leg including the foot when the leg is stretc;gqi*qh ax ++hhed straight out. Assume the person is 1.60 m tall.