What is the SI unit of vppt+ ,y lb5 e:k1gxt,momentum?

  When a cannon fires a cannonbyc,t7+fs4 qd2zn9 szrall, the cannon will recoil backward because the

  A freight car moves along a frh bwch/ xu6f,6ictionless level railroad track at constant speed. The car uc6 /wxf6 hbh,is open on top. A large load of coal is suddenly dumped into the car. What happens to the velocity of the car?

  A child falls sideways off a sled while sledding9fv(icoj3wq1u9z+p0hz 4z ki on frictionless ice. What happens to th9 p19z jkh ciquvwz(3oi 40+zfe velocity of the sled?

  A rubber ball and a lump of putty have equal mass. They are thrown with equayklpw5yz+ pik h8/68 u1b gig/l speed against a wall. T bl6w51+ig8 p y8ik/yug/zhkphe ball bounces back 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 moving with a momentum p. How would y qlc2:msm09utou represent its kinetic energy in terms omsc ul:t92q0 mf these two quantities?

  If you pitch a baseball with twicwwal m7 d 8,j5uec )zx9.8rlffcn;/ts e the kinetic energy you gave it in the previous pitch, th8 ,/al7.z8sefr5 uxc cjtdl9mf);nwwe magnitude of its momentum is

State Newton's second law in terms of momeu4xjz t 0 6lsjpkxww2ne0;9(lntum.

State the law of conservation of momenti eyi 1n)dekgxj180d0um.

  The area under the curve on a Force versui7z- bis /wex*s time (F vs. t) graph represents

  Which of the following is an accurate statementa46ti 2q l5sxw-- sbec.9nvqa?

  A small car meshes with a large truck in a head-on collis8:k3ucfz (lelq ;z8i bv er*)9psz(it ion. Which of the following statements conp(: )s b*(ze8;8z3i9 lz rlf vciktequcerning the magnitude of the average collision force is correct?

  Two equal mass balls (one red and the other blue) are dropped from thejumzl:jb b 45* same height, and rebound off the floor. The red ball rebounds to a higher position. Which ball ism4 *ubj:j5b lz subjected to the greater magnitude of impulse during its collision with the floor?

  A Ping-Pong ball moving east at a speed of 4hz,8g;sjc 9pc1)n ds g 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 object spj1c ,89hs g gdc;zn)experiences the greater magnitude impulse during the collision?

  Two objects collide and bounce off each other. Linear mome*tti ;h1lk et7ntum

  A 3.0-kg object moves to the right at 4.0 m/s. It collidesdyhkejhr50 adr7-d 95 head-on with a 6.0-kg object mhak5j0hy r7 dr5-dd9eoving to the left at 2.0 m/s. Which statement is correct?

  A 100-kg football linebacker moving at 2.0 i-k2zm 3f evoe*jzwf z7;v9 0gm/s tackles head-on an 80-kg halfback runnikgo vze-mvz z i;*9f03e2 7wfjng
3.1 m/s. Neglecting the effects due to digging in of cleats,

  In an elastic collision, if the momentum is conserved, qkwq b8 5(jk:ethen which of the following statements is trkeqbw: 5(q8k jue about kinetic energy?

  When is kinetic energy conserax k6 ;7 x, cnf-a:4jj5pmdemkved?

  In a game of pool, the white cue ball hits the #5 ball and stop*nmdzh38to b1 1 3k/gfvd;ydms, while the #5 ball moves away with t;ydvt nkd1d/ 3m*8z1bm3fog hhe 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 collid47,h )siisgu nes with a heavy exercise ball at rest, the beach ball's speed after the collision will be, approxi)s4igu7sh ,in mately,

  A golf ball traveling 3.0 m/s to the right collides inbo sp72c4syrfvfr3(r r1 0 j/u a head-on collision with a stationary bowling ball in a friction-free environment. If the collirru3 r2 (0c pbjosf4ry7v /s1fsion is almost perfectly elastic, the speed of the golf ball immediately after the collision is

  A rubber ball with a speed unh1kpijg:7t9zg 8e8 of 5.0 m/s collides head-on elastically with an identical ball at rest. What is the speed of the initially stopped balnjg8k8t :u e7 ip1zhg9l after the collision?

  A very heavy object moving wit .b*vi-qhrzpf0;yfj -a9 h l/v+sdc. sh speed v collides head-on with a very light object at rest. The collision is elastic, and there is no friction h0v p-qb r+l h-zajssi .f9*cyvf;/d.. The heavy object barely slows down. What is the speed of the light object after the collision?

  A very light object f)q ecax:ue- 0zto:d 6moving with speed v collides head-on with a very heavy object at rest, in a frictionless environment. The collision is almoset0d czuf-a6:xe) q:ot 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 a8q k ft w8c*o,ogdvf.d)q2+ rp yellow ball of equal mass moving wit,)ff v tdrk*8+.docq gp82qwoh 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 v colctcw,* 8yl. /jvz5hb1g/e, iy9wru32 uramvc lides head-on with a very light object moving with velocity -v. The collision is ela u c3 bcryyij2*5w 9l thz/rve8cmavwg.,/,1 ustic, 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, n6staqo*7 d(jmc/*t uao /2nhif the momentum is conserved, then which of the following statememtjan *hc (/dt*noquo62a/s7 nts is true about kinetic energy?

  Two objects collide and stick together. Kinetic 1a kz)1m ak28km,.0k vppls fzenergy

  A 3.0-kg object moves to the right at 4.0 m/s. It collid 5fgc 1zux4a*xes in a perfectly inelastic colxz1fc4 ax5g* ulision 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 object experiencmewl5c 5i o i:t4fh57ieilud0,l1i8ves the larger magnitude of momentum change58me1d0iv 5u7li5, wfoiti:lei4 l ch ?

  In a game of pool, the white cue ball hits the #9 ball an8;uc+4 oqf- /mssjfz jd 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 follu ww+r( wutp,1thuj+j atv.4:/ o5gqgowing statements is false ,atj5(wv1pj gr4utuwq/+h: ugow+t.?

  Which of the following is ,svf9zcs.k t; a false statement?

  Tightrope walkers walk with a long flexible rod i-l1foi 97rz0/jjqeh 7hi x ; b(owpyx:n order to

  A plane, flying horizontally, releases c3w mm4z qy7q,.mxq:;;tfvrn a bomb, which explodes before hitting the ground. Neglecting air resistance, the centev,.4 nwfmy mqrxq:;;tm cqz7 3r of mass of the bomb fragments, just after the explosion

  Two cars collide head-on on a level friction-free road. Trq,vm9:;s+ejhwt :; (sztr n ws*ul-nhe collision was completely inelastic and both cars quickly came to rest during the collision. What is truwnrv;shr ,-ltsws9m*;z (:tn :u +qjee about the velocity of this system's center of mass?

State Newton's second law for aeotmw*7.,pfk a1+onyh e0y ;a system of particles.

  What is the momentum of a 2000-kg truck traveling at 35 m/ns-uwe)ar+uyn wuv nx7. j7; -s?

  A 1200-kg ferryboat is moving sou0ccc)ilf-f qg6 7l- prth at 20 m/s. What is the magnitude of its momencflg7pcc-0i)6 lq-f rtum?

  A ball of mass 0.10 kg is dropped from ala24t8ie.eg p height of 12 m. Its momentum when it strikes the gre.2el tagp i84ound is

  Two identical 1500-kg cars arexku6vy8 g e.3 cq3a8ee moving 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. What is8e.g 8k cax qeev6y3u3 the total momentum of the system?

  A handball of mass 0.10 kg, tr i;9;tb1st4fj+ kbwbqaveling horizontally at 30 m/s, strikes a wall and rebounds at 24 m/s. What is the change in ki ; 4tt;qfwbjb+bs19the momentum of the ball?

  A 0.060-kg tennis ball, initially moving at a speed of 12 m/s, is fob9 6rw37hzm nt tc;z;7q y9fstruck by a racket causing it to r39nwc7 q y 7zfbmo;z;9tf rh6tebound 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 (excluding the b,d 2huxhlc; vu o1cwwsis,:;5aseball) is placed on a frozen pond. The machine fires a 0.40-kg baseball with a speed of 35 hdx huc , w:ov52uls;c;s1i,wm/s in the horizontal direction. What is the recoil speed of the pitching machine? (Assume negligible friction.)

  A 70-kg astronaut is space-walking outside the space caps5(ut. lvja wxe0 :gz.xule and is stationary when the tether line breaks. As a means of returning to the ca.z .u(jwavx5e:x gt0 lpsule 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 toward the capsule?

  A small object with momentum 5.0 kgm/s approaches head-on a large object:5ssmoj p2p.3py oj( h at rest. The small object bh yjo(m2p:.j3s ops p5ounces 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/sg*q6fwc 3ytye ged2js j/,h8xf1 ud- *1atn 1a to greet your friend (40-kg mass), who is standing still, with open arms. As you collide, while holdine/d2 yxy*u8g,t ce gh*ts- n11jj3aa q1d6 fwfg each other, with what speed do you both move off together?

  A car of mass 1000 kg moves to the right al; r c54rlxx10ig9-yye 0gb4c 8cnkslp ong a level, straight road at a speed of 6.0 y-1kg 9c85sb xpgylcrn404c ;ie 0rlxm/s. It collides 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 runs into the rear of a stoppe tyotprh 9*f5-jz-6txd car that has a mass ohto5 j z-9f*- 6xypttrf 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 allowyg65sjqqms v *is (j*om1+qs4 ed to coast along a level track at a speed of 2.0 m/s. It collides and couples with a 50,0 4jom*5v*im(16 ssqq jyss +gq00-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 200 kg, rolls w(:.faywj462,saqe 8dlf zvhg9 4jr)p:td cg vith negligible friction on a horizontal track with a speed of 10 m/s. A 70-kg stunt man dry4r.fvw( cehal: 6djq 2dztf:a 8j 9sgv )4,gpops 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 atx9wdn;qe1 s 6vsxq+ mxddji)17 q6ay( the rate of 0.80 m/s (with respect to the log). With what speed does the log move, with respect to the eqwm + ad) 7qdq ;x19xd6x(61vjsinysshore?

  A 4.0-N force acts for 3.0 s on an object. The force suddenly in sndg;w9h (;5jrn/ncm creases to 15 N andc9(nmr5 ;h; /ngdwjn s acts for one more second. What impulse was imparted by these forces to the object?

  A constant 9.0-N net force acts for 2.0 s on a 6.0-kg object. What is the objecfx(/bnq acah w lf 1oy)d-o l059k04xptlf0k4wypfoaqdx nac/x-lho95b 1)0 ( 's change of velocity?

  A 2000-kg car, traveling to the right at 30 m/s, collides with a bric 1,zae;eqgam 8qbpr38k wall and comes to rest in 0.20 s. What isqr3e8a mp;ae1bgzq 8 , the average force the car exerts on the wall?

  A 2.0-kg softball is pitched to you at 20 m/s. p wy;.6+ he, vll6xsu,0ha6 ucbp*fre You hit the ball back along the same path, and at u0pe, p6v6hlla;x.cwe yub, h+6*fs r 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 exerted?

  A 0.10-kg ball is dropped onto a table top. The speeds of the bs53,(4m; k qhn,8(tzsv fu8wbzr syvnall 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 an8(4 w k;,sbhv fmtss z(5nuz,qn3rvy8d 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,ql9nn 5n-3eephn:ue2+dr8vy fires 50.0-gram bullets, with a muzzle velocity of 750 m/s, at the ren:+ry ehv9 ndql5 8pn3e -2unate 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 building in order to knock thei iil:l :4uky2zaec)1 door down. This requires a forcelluc2kia: 1iz e yi4:) 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 back?

  Water runs out of a horizontal drainpipe at the rate of 120 kg per minute. lflev0 jrx1))s ygxfq ;+ 3p*a4jgdu) It falls 3.20 m to the ground. Assuming thux )s l)epdr;vf0j3glg +yfqja )*x41e water doesn't splash up, what average force does it exert on the ground?

  A toy rocket, of mass 0.12 kg, achieves a velyd855kt+ at1)g mk lykocity of 40 m/s after 3.0 s, when fired straight up. What average t ly+tg) at51kdmy 58kkhrust force does the rocket engine exert?

  Two astronauts, of masses 60 kg and 80;j fm*7phof 5bpq- +l8 0xhgpr kg, are initially at rest in outer space. They push each other apart. What is their separation after the lighter astro- pxlb0p+f * p7 qgmho8rj;fh5naut has moved 12 m?

  A 3.0-kg object moves to the right with a speed of 2.0 m/s. It collides in ;rxwkq (t/ qjr/i8ue7a perfectly elastic collision w/ ;tq 8wru/jk (x7rieqith 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 hea 74st5.az+n ( jiqey3nbd -kggd-on elastic collision with a 0.15 kg object initially at rest. What is the final velocity of the 0.10-kg object after collisio 3szqb54ygntjgk.i(ae - +dn 7n?

  A 10.0-g bullet moving at 300 m/s 6p5859 en4 vgq*w)tzhzu lgr eis fired into a 1.00-kg block at rest. The bullet emerges (the bullet does not get embedded in the block) with half of its original speed. What is the velocity of the block righvn*q5 4 zhe w6u9)5zltg ger8pt after the collision?

  A proton, of mass m, at rest, is struck heww*ooh i1e. f.hq02abad-on by an alpha-particle (which consists of 2 prooe *2 hwf.1oihaq0w.b tons 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 with a stationae7/krtn jmb*-ry ball of mass 100 g. The collision is elastic. What is the speed of each ball knt/*ejb7rm- immediately after the collision?

A ball of mass 400 g moving sayhf v5** i:+vezy2s g4p nl:vn+2hqtoward the east with a speed of 3.70 m/s collides head-on with a 200 pq zh:sha4* 2vy+v*e:2 lgnn5fsyvi+ 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 collidc2: ag69m:l-nadfa. /po smr kes head-on with a 3.0 kg mass at rest. If the collision is perfectly inelastic, what is the speed of the masses after the collislk2 / p :da s-n6c:mo9farg.maion?

  A 2.0-kg mass moving to the ea4 i9t 7ngtlz0pst at a speed of 4.0 m/s collides head-on in a perfectly inelastic collision with a stationary 2.0-kg mass. How much kinetic energy is lost dtg7ltpiz90 n4 uring this collision?

  A car of mass m, traveling with a velocity v, strikes a paro :alns7 jk(nmzl1x;+ked station wagon, who's mass is 2m. The bumpers lock together in this head-on inelastic collision. What fraction of the initial kin l+; s1j(:7ml zknaxonetic energy is lost in this collision?

A 15-g bullet traveling 213 m/s in a vertical direction bufwr.wxn:we.k di n:8u to,(b-ries itself in a 2.4-kg block of wood a rest directly above it. As uf dk.rwxwni b(,:oet:.8 w-n 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.zezn5::xol -byj78nnghq 1 w;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 speed of the cars after collisiolbqxw ;:zjh -ze:1n7 o58ngn yn?

  A 1500-kg car traveling at 90.0 km/h hame 1jk r7xol8-no :6east collides with a 3000-kg car traveling at 60.0 km/h south. lxaerj omhk1: -n678 oThe 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 frictio 73+zvy x)i1abacl4qh( ixaa-h +xrz,nless surface. 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 momentum aftyal(q 4 +a)i,c+7aia bhr3zx1-zxxh ver the collision?

  A small bomb, of mass 10 kg, is moving toward the Nortz45xao5rpq lb ;w;dq(h 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 brz q4p a;55qo(dl;x wfragment 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 origna.f v w:rtnr1* p0u)bin, and a 10.0-kg mass sits at x = + 21.0 m. Where is the center of mass on trv pnu f1:bw *rna.t)0he x-axis?

  The center of mass of a two-particle system i z bc/ +se*0o-emq8dqus at the origin. One particle is located at (3.0 m, 0) and has a mass of 2.0 kg. What is the location of the second b s+qqmd0ze-/c*u8oemass of 3.0 kg?

  Three masses are positioned as follows: 2.0 kg at (0, 0), 2.0 kg at (2.0, 0)/7zab:p d32u hjftq;m /o r,oq, and 4.0 kg atodmzjtfb;/3 /h7oaq : 2 ,qupr (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), (1.0 m, 1.0 7 :r m3+ r3edhtu;pzidjzf +6vm), and (2.0 m, -2.0 m), respectively. What is the location of the center of masmit3e d zf+hr:+jr;7uzv p3d6s of the system?

  A 3.0-kg mass is positioned at (;/tv1 efa6zcqwth a 310, 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 ta/qc; tafh16zwe 3v1the system of three masses being located at the origin, (0, 0)?

  Use Table 7-1 to calculate the position of thadcm3.l xz gw;j 5exb ;:w e.ndtp06/he CM of a whole leg including the foot when the leg is stretched straight out. 5zx.h3gtbmp;.acjd:wd0n 6xw/l e e;Assume the person is 1.60 m tall.