What is the SI unit of momentuntg;;4g jp rg0 u8lqs i6rq10vm?

  When a cannon fires a cannonball, the c,m;m5 eq(5ugh: jolzp annon will recoil backward because the

  A freight car moves alongl0:m:-iitysb6y 2-pnb hqil* r4ng7g a frictionless level railroad track at constant speed. The car is open on top. A large load of coal is suddenly dumn*hlt4 -i p:rin0bbgiy 67qs :2gym l-ped into the car. What happens to the velocity of the car?

  A child falls sideways off a sled while sledd2s m+*u;.9t7/e,f ojywsx: wnld bmxqing on frictionless ice. What happens to ox 2ue:9fms*sm j, l.ndx/wy;t7qb+w the velocity of the sled?

  A rubber ball and a lump of putty r rs(zr5pf.vkh 1xa 7;have equal mass. They are thrown with equal speed against a wall. The ball bounces back with nearly the same speed with which it hit. The puttyk. 7 (5r1xzrpa hfr;vs sticks to the wall. Which objects experiences the greater momentum change?

  A sailboat of mass m is moving with a momentum p. How woz6l6q2h p;joy uld you represent its kinetic energy in terms of these two jz62lo;qph y6quantities?

  If you pitch a baseball with twice the kinetic energy you oryvt 45 mp d y*d*q,3ysdnnghy/8p3- gave it in the previous pitch, the magny3dy8 nrv,dqdp/3 -o5y y4ps thm*n g*itude of its momentum is

State Newton's second law in terms of mo u bfny..l6a)6p++) ms beo)idax4hkh mentum.

State the law of conservation ofww4:uq m6(ni a momentum.

  The area under the cdj**/yyd s+,tp xq( ukga(/ f)ioth;zurve on a Force versus time (F vs. t) graph represents

  Which of the following is an accurate statemens9 fgn01b- kr bv),i-ltz5 rxat?

  A small car meshes with a large truck in a head- oj(34da pg)wton collision. Which of the following statements concerning the magnitude of the average collision forcao)(w43gpjd te is correct?

  Two equal mass balls (oa0v)x( pl8 lu 7oo3dgrne red and the other blue) are dropped from the same height, and rebound off the floor. The red ball rebounds to a higad xg7(3)p8l or oulv0her position. Which ball is subjected to the greater magnitude of impulse during its collision with the floor?

  A Ping-Pong ball moving east at a speed of 4 m/s, collides with a stationarw ul pp;4y5qf(y bowling ball. The Ping-Pong ball bounces back45y lfpw u(;pq 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 off each other. r:k3ahq)0lal.0gg2ig zte 1 oLinear momentum

  A 3.0-kg object moves to the right at 4.0 m/s. It collid buqaa8 h z+6jhw7*bk:es head-on with a 6.0-kg object moving to the left at 2.0 m/s. Which st7bqab h:jzwah k+86 *uatement is correct?

  A 100-kg football linebacker moving at 2.0 m/s tj9 l z3/ jptq7ji9hn6oackles head-on an 80-kg halfback runz3t7qj/j9h j9ip on6lning
3.1 m/s. Neglecting the effects due to digging in of cleats,

  In an elastic collision, if the momentcu9 l s s /;lc4+q*uyb5dr;gtkum is conserved, then which of the following statements is true about kinetic enec5;g ;+q4u9r/sl*l ktsbyu dcrgy?

  When is kinetic energy conserve:/((fzg rjjaf d?

  In a game of pool, the white cue ball hits the #5 ball and sto / 0:yv5roiykgps, while the #5 ball moogyrkvi y5: /0ves away with the same velocity as the cue ball had originally. The type of collision is

  When a light beach ball rolling with a ip-q/h2 y8b7st 0mxvuspeed of 6.0 m/s collides with a heavy exercise bqit- bv2 y 7sm08u/pxhall at rest, the beach ball's speed after the collision will be, approximately,

  A golf ball traveling 3.0 m/s to the right collides ihpw+nr)8 7enrn a head-on collision with a stationary bowling ball in a friction-free environment. If the cnnr)w 7rp+h8 eollision 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 elastically with y;2u h( .qv+gcr,e lqa6b ri1tan identical ball at rest. What is the speed of the initially stopped ball a2v,(ry u t6qqgcla1;.bi+h e rfter the collision?

  A very heavy object moving with speed v collides head-on with j k jc.l1ppf/9a very light object at rest. The collision is elastic, and there is no friction. The heavy object barely slows down. What 1 .l/cjjppkf 9is the speed of the light object after the collision?

  A very light object moving with speed v collides heafbf1t3dcz2 k*7a+v wl9:iw az7f6bf ed-on with a very heavy object at rest, if *7b+k1 zw3fv:iza9e tf f c6al7w2dbn 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 mb2,6 zqxhprcx/ vw24m/s collides head-on with a yellow ball of equal mass moving with a velocity of -2.0 m/s. Whatpx,hv6w4 q xczb/rm22 is the velocity of the yellow ball after the collision?

  A very heavy object moving with velocity v collides head-on with a ver7vn +idr5 0auih;b1ii y light object moving with velocity -v. The collision is elasthiudv b ;ir05 inai+71ic, 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 conservedq4j+cpzy 8 pp2, then which of the following statements is true about kiqc +yjp8pp2 z4netic energy?

  Two objects collide and sticu.bx fat)ht5t zun54-zs qj 6/k together. Kinetic energy

  A 3.0-kg object moves to the right at 4.0 m/s. It collides in a perfec5 d + zgwn-:0ed/p* nnxthry5rtly inelastic collisw/dr05 :npyng-5 nte+ h zx*rdion 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 lav 683wo :psw4pmt bjf( kz+ny3rge object and sticks. Which object experiences the ozys nw36: (wt4bv3p8jfpm +klarger magnitude of momentum change?

  In a game of pool, the white ctxworr)fhhsm;+7 *w +ln) yzye 7)u7yue ball hits the #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 followikpo-kvcb:k 8f0/*8n ctbae)e8pesx 1;b n) jtng statements is falskn;p) 8fcjbb keonst v)- p:*8 c8ex0 /take1be?

  Which of the following is a false ksqrz4 1ho+gci x93c,statement?

  Tightrope walkers walk with a long flexible rod in order t.4rq6 4sk; 0lvzdubn2dfo xw/o

  A plane, flying horizonte (6/hxucj8kp ally, releases a bomb, which explodes before hitting the ground. Neglecting air resistance, the cenc8j uh6k (xpe/ter of mass of the bomb fragments, just after the explosion

  Two cars collide head-on on a level friction-free road. The collision was compmb;n0ttl-s3pfsb7o8q,v qf (letely inelastic anqs,pqtt0bl mn8f ;b( s7vo f3-d both cars quickly came to rest during the collision. What is true about the velocity of this system's center of mass?

State Newton's second law for a systemwq a9nz)l0 w*b of particles.

  What is the momentum of awxhyj1rxgdgzu) /-k7/o ji248 s5ik r 2000-kg truck traveling at 35 m/s?

  A 1200-kg ferryboat is moving south at 20 m/s. What is the magnitudfpr 3edq2uecyn(5 ,xs98uq; ne of its momenu e3d ,u5s8(y2 n9;c pnqerqxftum?

  A ball of mass 0.10 kg is dropped from a height of 12 9 tikfy6sdz0 esij;u6o/kg/9w d9v;lm. Its momentum when it sttig 06fduol9z/9ik k;y ;/s d6 9ejsvwrikes the ground is

  Two identical 1500-kg cars are movi( gxxa*h4u.ma ng 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 is the total momentum of *ah.u x4 x(mgathe system?

  A handball of mass 0.10 kg, traveling hori;l vfb*t2 xjx mp.903de ehk6qzontally at 30 m/s, strikes a wall and rebounds at 24lh9b v*qxjdf;pmte 3.2kx e 06 m/s. What is the change in the momentum of the ball?

  A 0.060-kg tennis ball, initially moving at a speev zno6m,et 85xd of 12 m/s, is struck by a racket causing it to rebound in the opposm v6nztox, 58eite direction at a speed of 18 m/s. What is the change in momentum of the ball?

  A 50-kg pitching machine (excluding the basebai-c *zt 9z*4in:cpl zdll) is placed on a frozen pond. The machine z:*i-zctilp* n4d zc9fires a 0.40-kg baseball with a speed of 35 m/s in the horizontal direction. What is the recoil speed of the pitching machine? (Assume negligible friction.)

  A 70-kg astronaut is space-walkin72(clm do h2c/2n nklag 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 nhd27c2an/lkol2( cmof 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 at mwd cce ;,*-riakwqfg(z-639mnfg9c rest. The small object bounces straight back with a momentum of magnitude 4.0 kgm/s. What is the magnitudef6ka,g( cdzm;qc*wcr gf 3 e- wnmi99- of the large object's momentum change?

  You (50-kg mass) skate on ice at 4.0 m/s to greet your f( m n9ojl-ld2d1x gw 48yan/mqriend (40-kg mass), who is standing still, with open arms. As you collide, while holding each other, with what speed do you both move off nj q-oydd nw9/a1l8 2m (4lgmxtogether?

  A car of mass 1000 kg moves to the right along a level, straight road at a slf6 lrw (mbr7i os;i*,peed of 6.0 m/s. It collides directly with a stopped motorcycle of mass 200 kg. Whw m*os;rilif 7lbr6,( at is the total momentum after the collision?

  A 1000-kg car traveling at 25 m/s runs into the 5nkpv;)adnc ,6it)zj sf- gy8rear of a stopped car that has a mass of 1500 kg and they stick together. What is tpz aj, s; 6ng -yntv8fd)ck)5ihe speed of the cars after the collision?

  A railroad freight car, mass 15,000 kg 8c( xl.z icutc5m3f,n, is allowed to coast along a level track at a speed of 2.0 m/s. It collides and couples with a 50,000-kg second car,ncu8l3fi ,zcm( 5 x.tc 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 with negligiblexjbcy5u;j0zeja0 *zxx:uhjw;9oke5 l x:8 f3 friction on a horizontal track with a speed of 10 m/s.j:;k0ezc5xu0f3 w9 exajly xu xb;*5hozj8:j 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 moving after this happens?

  A 60-kg person walks on a 100-kg log at the rate of 0.80 m/s (with re/dpx gu*1boe,x h3,wnmau6nw ,qyy 9ka8dv -.spect to the log). With what speed does the log move, with respect to bvueyaog6n,xd9ka,u -.y*31q ,/wp8wd hxn mthe shore?

  A 4.0-N force acts for 3.0 s on anzq7/d teqk ,h. f8*wkf object. The force suddenly increases to 15 N and acts for one more second. What impult hd8wkqe/qff.,z7 *k se 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 2/x:25(q6qssq*idb vmb ijotuqa3 y/ -yg;rdthe object's change of*2qib3ss5ut -a6v o m/r ;qd(q: dyqjb2gyx/i velocity?

  A 2000-kg car, traveling to the right at pbb86mftiv: tl 0 fg;f+4k1bc 30 m/s, collides with a brick wall and comes to rest in 0.20 s. What is t;t81mit b pl bgf+cv 0ffk:b64he average force the car exerts on the wall?

  A 2.0-kg softball is pitched to you at 20 m/s. You hit the ball back alon*ih8pg/ :tw7qy4u ohd )flf 3ng the same path, and at the same speed. If the bat was in contact with th8fqh)4 py:w7fl/3gnio th*ud e 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 ball rightt4x1c 6ezo0fj 6ra ji0q0cr 6v before and right after hitting the table 6qoj r0vxcr j 1ft6z06ai04cetop 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 bullets, with a muzzl 6p4fm6f/1xvz8 yn7rj )mtk:0 ciduyie velocity of 750 m/s, at the rate of 300 rounds per minute. Wn67)tfi: d /4fvy0pj8kc y1xzur 6immhat is the average force exerted on the machine gun mount?

  A fire hose is turned on the door of a burngtnc3 ) 8sr6s xox2k/king building in order to knock the doo xko 26scsr8/tkg)3xn r 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 back?

  Water runs out of a horizontal drainpipe at 5go9un1ght v)l/ z/m4sho9okthe rate of 120 kg per minute. It falls 3.20 m to the ground. Assuming the water doesn't splash up,sg91/km5hgolouz h)9v/ton 4 what average force does it exert on the ground?

  A toy rocket, of mass 0.12 kg, achieves a velocity of 40 m/s after 3.0 s, oc f9/ iz4/gew7 1cndj++segbwhen fired straight up. What average thrust force does th z+1ce4og+gi fb/ edc7nw 9/jse rocket engine exert?

  Two astronauts, of masses 60 kg and 80 kg, are initially at rest in outer space amj +q.gd)g5arxna 6lih//n 3. They push each other apart. aq/g5and. nig3x a/l h)6 rm+j What is their 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 collides ivdrkrg/n0-sdq9fz a c n 5-*m6n a perfectlym5 rd n/vd06sz-9-k*r f ngqac elastic 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 velocity of 0eh 8a o.0d508l+zufgwo zsl9t.20 m/s in the +x direction makes a head-on elastic collision with a 0.1l sdwfl.89+oez0t0h z 5oug8a 5 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 blozbckb, ujh. z:3p -ju er4ans 4g82,yack at rest. The bullet emergeb.ahj 4ya3 zub8j zpuser:4 -,ngkc2,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,pbi,b ,h1+blw yw3mx struck head-on by an alpha-particle (which consists of 2 protons 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 e,w+i,h 3bbm1,xb wl ypquals the proton's mass.)

  A 50-gram ball moving +10 m/s collides head-on wircqmby h bgfuv-q49p* :st q;9pa8;x;6wiq/ith a stationary ball of mass 100 g. The collision is elastic. What is the speed of each ball immediately after the collision?;qfi6vh/ q; rmucgpa w-9bt* p49yq:; qb8xs i

A ball of mass 400 g stq*-ee*7u8m,pyli emoving toward the east with a speed of 3.70 m/s collides head- yl,pq*s-m7u8ie*t e eon 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 collides head-oaom /ue2y tj77k, sz7on with a 3.0 kg mass at rest. If the collision is perfectly inelastic, what is the speed of the masses aft7 2uztyak/7 j,m7es ooer the collision?

  A 2.0-kg mass moving to the east at a speed of 4.0 m/s collides head-on in/p 9 l)ffyafwxa,djm5ocd6)5uv 5*cp a perfectly inelastic collision with a stationary 2.0-kg mass. How maw y 5dc)mfj95v*fo)dfc pla/p 5x6 ,uuch kinetic energy is lost during this collision?

  A car of mass m, traveling with a vxwk9l4()x fg 2efzyq1elocity v, strikes a parked station wagon, who's mass is 2m. The bumpers lock together in this head-on inelastic collision. What fraction of14 (lz wg9fk)2 xqxfye the initial kinetic energy is lost in this collision?

A 15-g bullet traveling 213 m/s in a vertical direction buries itself in a4mmr4pf0z*7ulzc ji2/fq5 s i 2.4-kg block of wood a rest directly above it. As a result, the bullet/blo*u7cm fzj0/2msr fz45i qilp4ck 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 traveling e:,vop1drr5sa c5)jb/ ckh+d at 60.0 km/h south. The two cars stick togeth:dc 5)cdh 5oevk+ pb1 ,jras/rer after the collision. (See Fig. 7-1.) What is the speed of the cars after collision?

  A 1500-kg car traveling at 9u yl-neaz-x-wf r l0 w**.qfw10.0 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 of1-w zwf x0a .f-rw*n* -leqluy the cars after collision?

  Two objects move on a level frictionless surface. ujx6 0uf(8dc. s;jjxrObject A moves east with a momentum of 24 kgm/s. Object B moves nort(;6uj u0 8jxxfrjs.dch 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 toward the North with a velocity )waj 6rfu hpb76xou7:r-k*ybp s dp 95of 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 e6 -kbwyxspoj ua5 rd 7f*)h7pubr :p96ast 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 sits9-i7xa5 2qv rrhqu 4zx at x = + 21.0 m. Where is t9 57qi-r xa2uvrxzq4hhe center of mass on the x-axis?

  The center of mass of a h 39euj-)phrv two-particle 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 of the second mass of 3.heh3jpu v9 r-)0 kg?

  Three masses are positioned as follows: oca(up 9fqqi,p99 1qi 2.0 kg at (0, 0), 2.0 kg at (2.0, 0), and 4.0 kg at (2.0, 1.0). Determine the coordinateio 9a(f9 1 ,qpcqp9qius of the center of mass.

  Three masses, 1.0 kg, 2.0 kg, and 3.0 kg, k h j7(5a+d7z snjb(isare located at (0, 0), (1.0 m, 1.0 m), and (2.0 m, -2.0 m), respectivelsh5 i(7s+n d(jazk 7jby. What is the location of the center of mass of the system?

  A 3.0-kg mass is positioned at (0, 8q-cchl) /ty k5)r,gw:qoqa 6v.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 masses being located at the yclh-6 qrvq)cq5,agt: k/w o)origin, (0, 0)?

  Use Table 7-1 to calculate the position of t;7wra(r r 9iskhe CM of a whole leg including the foot when the leg is stretched straight out. Assume the person (;wa9k7r irsris 1.60 m tall.