What is the SI unit of momentzjkja 47t zz47 ow:7d3nv)gbbum?

  When a cannon fires a cannonball, th 9lem3ha fyuln2,6p /he cannon will recoil backward because the

  A freight car moves along a frictionless level rail4hru0u3z0mgn8ek)nofb4 3 co road track at constant speed. The car czu3n)fbuhk8 4o3 040gnr eomis 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 sledding on y4, 6r tyexeiy tr9n(-frictionless ice. What happens to the v- y rryy46te,(e xitn9elocity of the sled?

  A rubber ball and a 8u2c n71im+hf2 kkhjdlump of putty 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 putty sticks to the wall. Which objects exk 2dmf1hh+i82j un7ckperiences the greater momentum change?

  A sailboat of mass m ignoh iq 6p22 d80+uaxrs moving with a momentum p. How would you represent its kinetic energy in + pgrqxn h8i6 0uoad22terms of these two quantities?

  If you pitch a baseball with twice the kinetic energy you gave it in:qrib cu-,x+h the previous pitch, the magnitudci-+xrbhq:u, e of its momentum is

State Newton's second law in ; -vuii;7j)uodp)st k0,kd quterms of momentum.

State the law of conservation of mom+k6c1y r-/ thfy p gh5nxmw7b(entum.

  The area under the curve on a Force versmguoqh) pq0l0 :ksx6*us time (F vs. t) graph represents

  Which of the following is an accurateu3vtq1 o5.qh y statement?

  A small car meshes with a largt:8 0sn*c/-ukgcxcy *wr5 ofyz, pg*ae truck in a head-on collision. Which of the following stat-*5 cykfccp *at0*z,:g o sugxyrn/8w ements concerning the magnitude of the average collision force is correct?

  Two equal mass balls (one red and the other blue) are dropped0t(m (+qqkkmq from the same height, and rebound off the m m((+qtq kkq0floor. The red ball rebounds to a higher position. Which ball is subjected to the greater magnitude of impulse during its collision with the floor?

  A Ping-Pong ball movinv-05el5omq oy tc8,jt g east at a speed of 4 m/s, collides with a stationary bowling ball. The Ping-Pong ball bounces back to the west, and theqvl yt5 ,o 8c05omjt-e bowling ball moves very slowly to the east. Which object experiences the greater magnitude impulse during the collision?

  Two objects collide and bounce off e0t m,pig e tww/cu,r+/ach other. Linear momentum

  A 3.0-kg object moves to the rig,+/lza3lj -notzi ;lght at 4.0 m/s. It collides head-on with a 6.0-kg object; z ltjlozl/,ign+a-3 moving to the left at 2.0 m/s. Which statement is correct?

  A 100-kg football linebacker moving at 2.0 m/s tackles head-on a,tgv) *mmf.-es ouvq 2n 80-kg halfback runninqsv -o g )*.fuv2mm,teg
3.1 m/s. Neglecting the effects due to digging in of cleats,

  In an elastic collision, if the momentum is conserved, then which of the folg8t.-ur gc 4txlowing statements is true abou rt-g c8xu.t4gt kinetic energy?

  When is kinetic energy conserved?ysd1 e m*q,.he

  In a game of pool, the white cue ball hits the #5 ball and stops, while thddk6q,7tz*26remqc x/zc b 5 ge #5 ball moves away with the samexgq7rdztbczc, k e5 6d2*/q6m velocity as the cue ball had originally. The type of collision is

  When a light beach ball rolling with a speed o uvr8 )55jexqr 8:de wj*xsky*f 6.0 m/s collides with a heavy exercise ball at rest, the ej 5rqrx:v5 )sw8y*euj* kxd8 beach ball's speed after the collision will be, approximately,

  A golf ball traveling 3.0 m/s to the right pup v4k 9, lxzgl gp)5/tu 1; fi7l5e1mngkq8ucollides in a head-on collision with a stationary bowling ball in a friction-free environment. If the col85,1fg nzg7 5xk k19m)uqplpevl4 il;tug/ pulision 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 1*k ovcs) u4:xu0tkh0iz jew2 collides head-on elastically with an identical ball aw ke 2z*0cx ht0iuv)u: k41jost rest. What is the speed of the initially stopped ball after the collision?

  A very heavy object moviqv1v s 2o;ft0usp1ld4ng with speed v collides head-on with a very light object atv021uq4 tf psod1lsv; rest. 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 collision?

  A very light object moving with speed v collides head-on with a very heavy oq-pd/xpeus6 3 bject at rest, in a frictionless environment. The collision is almost perfectly elastic.p 6sepu/ 3qd-x 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 b i,gpes90yh (gall of equal mass moving with a velocity of -2.0 m/s. What is the velocity ofesgh0 p (gi9,y the yellow ball after the collision?

  A very heavy object moving with8wamtc* ) wawqe3g 9-d velocity v 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 slowsw g*qw8aw3mct -ad)e9 down. What is the speed of the light object after the collision?

  In an inelastic collision, ifi by3;yaq w,.k the momentum is conserved, then which of the following statements is true about ,by3w;. qkyai kinetic energy?

  Two objects collide and uyxw 6gdk061eo 52li47uztgwstick together. Kinetic energy

  A 3.0-kg object moves to the right at 4.0 m/s. It collides in a perfectpvtqphbs02w:3(f3d 8 /ernmjly inelasticw(pp2m:rq0/ensb3f 8 d3jh t v collision 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 larit7u pdfzck8 3:*z tl5x9yi8age object and sticks. Which object experiences thea8*iutcyl73k8p d :it f5zxz 9 larger magnitude of momentum change?

  In a game of pool, the white cue ball hits the #9 ball and is deflected at uvyb.ul aggx *)b0im+ y;n*g4 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 unequalm(pbo/+(2 bf od,svtc masses, M and m. Which of the following statements is fals,/cm op(v+2bf (b sdote?

  Which of the following is a false statement?b 1:obrg6n-+(gp qi ajy*gi7k

  Tightrope walkers walk with a long flee l17 m,gm:7 lzboyjd*xible rod in order to

  A plane, flying horizonta wwzam 29hc5;ally, releases a bomb, which explodes before hitting the ground. Neglecting air resistance, the center of mass of the;zc2m9w h5aaw bomb fragments, just after the explosion

  Two cars collide head-on on a level friction-f1jqg20ay blokkf ,b.; ree road. The collision was completely inelastic and both cars quickly came to rb;. kgq0f,1kj 2 yabloest during the collision. What is true about the velocity of this system's center of mass?

State Newton's second law for a system of particl 2ckch/xvrr1/es.

  What is the momentum of a 2000-kg truck traveling at 35 m/s?esg o( g qpi8xcr )/)u,p9e0mz

  A 1200-kg ferryboat is moving south at 20 m/s. What is the magnitude of ogxrjp4d+ ;6eits momexr;j godp4e6 +ntum?

  A ball of mass 0.10 kg is dropped from a heighvs3lvseee. )jrl 6x.i 26gae+ i7zc0ht of 12 m. Its momentum when it strikes the grouv.+lesi cg)3e6 .jx7r6 ehleiza vs2 0nd is

  Two identical 1500-kg cars are moving perpendicular to each other2h ki7ce:0u.xt5w5kk(kd: ll pcr1ws . One moves with a s xpkd5tlwcl.:r:10(ce uik skk w7h25peed of 25 m/s 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 horizontally at 30 m/s, strike2s/gpzbqqm+8 zqd i:6bdl-y )s a wall and rebounds at 24 m/s. What is the change in the moment /qqzsb+z:g8ybdp)l i- mdq26um of the ball?

  A 0.060-kg tennis ball, initially moving at a speed of 12 m/s pz nrkw/wx.n i*/rv +3l5lc9z, is struck by a racket causing it to rebound in 9*l+w zv3. /pnw/zk il 5cnxrrthe opposite direction at a speed of 18 m/s. What is the change in momentum of the ball?

  A 50-kg pitching machine (exclurnkm) d)vxtp + a,px+3ding the baseball) is placed on a frozen pond. The machine fires a 0.40 )dvxxa,)k++ntm3rp p-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-walkiny+ h;s7+w6c9mg vqha dg outside the space capsule and is stationary when the tether lhgh;6ym9 s +wdc+q va7ine 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 toward the capsule?

  A small object with mo6 yz8oyecykjbe ti5)8s 00zt*mentum 5.0 kgm/s approaches head-on a large object at rest. The small objecstzzy*ey8 5ek)cto0 0i8ybj6t 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 s,j cc p6yu,tfwg; 0o)on ice 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, with what speed do you both move off tftgo w0 y6cus p,);,cjogether?

  A car of mass 1000 kg moves to the right along a34t fdl-/iu vo 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 after the collision?/lftd -4uvio3

  A 1000-kg car traveling at 25 m/s runs into the rear of a stopped car ny+ -7h,cpob zthat has a mass of 1500 kg and they stick together. What is the speed of th-+ ncop,hbz7 ye cars after the collision?

  A railroad freight car, mass 0lq6g3s pdgm115,000 kg, is allowed to coast along a level track at a speed of 2.0 m/s. It collides angs 106lgmdq p3d 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 mf*.q b*s :ccji5*i*gm xhex *qass 200 kg, rolls with negligible friction on a horizontal track *sq:fgex.ci*j*ic5m* *q x bhwith 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 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 to m8ob b,*l todj,.-cjsthe log). With what speed doe-*m, ob coljbj,8dst.s the log move, with respect to the shore?

  A 4.0-N force acts for 3.0 s olz2fxig5 w(*on an object. The force suddenly increases to 15 N and acts for one more second. What impulse was imparted by these forces to the oblx 5*izo( gwf2ject?

  A constant 9.0-N net force acts for 2.0 s on x:hx+amkie4y3) je/ sux9on m5z r-i6a 6.0-kg object. What is the object's chang9n)xj4x: sxmz-hoae m 53u i6ir+ke/ ye of velocity?

  A 2000-kg car, traveling to the right at 30 m/s, collides with a *5i4rz, ygkas brick wall and comes to rest in 0.20 s. What is the a5*, rz yik4sagverage force the car exerts on the wall?

  A 2.0-kg softball is pitched to you *dn28zdewr6 iat 20 m/s. You hit the ball back along the same path, and at the same speed. If the bat w *ez28ddw6i rnas 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 ball right beforeiuej-oo5 z c :h )8 2opn;jccaxh27(ps and right after hitting the table top 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 theo c2sou -jazxi7(c; 8n:o)e5h c2hjpp magnitude of the average force exerted on the ball by the table top?

  A machine gun, of mass 35.0 kg, f-/dbqy31cyd lires 50.0-gram bullets, with a muzzle velocity of 750 m/s, at the rate of 300 rounds per minu 3dqcy/-byd1lte. 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 8px lvo,o tx y- k-ak3c4ia*u.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 t4,ct k*ioa -xpky uv8.3 ax-olhe water doesn't bounce back?

  Water runs out of a horizontal drainp,y:e yyhg n22y:af5hz ipe at the rate of 120 kg per minute. It falls 3.20 m to the ground. Assuming the :2:ey h f2h,yn5zayy gwater doesn't splash up, what average force does it exert on the ground?

  A toy rocket, of mass 0.12 kg, achieves a velocity wz 9jdrgo+x.k57zj.jk l / -ysof 40 m/s after 3.0 s, when fired straight up. What average thrust force does the ros+ jk5yjgdw7. /z-ozk lj.9xr cket engine exert?

  Two astronauts, of masses 60 kg and 80 kg, are initially at rest in outer spu6q2ux8kx oap+ u2pj3 ace. They push each other apart. What is their separationpkuu2+x 2jqu 6a8op 3x 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 in a t2d3o8s3wbr qo k7vp6perfectly elastic collision with a 6.0-kg object moving to the left at 1.0 m/s. What is the total kinetic enerwstobko6 p3rq2783 dvgy after the collision?

  A 0.10-kg object with a velocity of 0.20 m/s in the +x direction m7 cwwew v4y(pti9buie,tui;): /pm6 makes a head-on elastic collision with a 0.15 kg object initially at rest. What is the final velocity of the 0.10-kg object after collisionw7 ,;)w 6y imcemwu/teiv p9(:tb4ipu?

  A 10.0-g bullet moving at 300 m/s is fired into a 1.00-kg blockp( td*9gnmcwc3 id l0; 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 right after the collisio(p;cln 0d itd3 g*w9mcn?

  A proton, of mass m, at res ;dp9sgyzbxh*5ftz6; t, is struck head-on by an alpha-particle (which consists of 2 protons and 2 neutrons) moving at speed v. Ifzhyzgsf9tx b ;5*dp;6 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 collidesiowu/ )t4a: 6t fq3c7y uiu+go2 e2eit head-on with a stationary ball of mass 100 g. The collision is elastic. What is the speed of each ball immediately after the collisi3i2ueftg 6 ci2 uayeqo/+4ui tw:to )7on?

A ball of mass 400 g moving toward the east with a speed of 3.70 m/s coll dc0 nmlyzprs 14c136cides head-on with a 200 g ball sitting at rest. The collision is perfectlyzl3ny06c1c1r4 c dpsm 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 ofje8:ucovu (roq.g ) h( 5.0 m/s. It collides head-on with a 3.0 kg mass at rest. If the collision is perfectly ineu(v qehco8 uj r:o.(g)lastic, 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/+hos/cwcd1h fxhk x7b*n . 4v. .5njins collides head-on in a perfectly inelastic collision with a stationary 2.0-kg h4 kn+. 7c .v5wnxhfnc1.sjdbh o* /ximass. How much kinetic energy is lost during this collision?

  A car of mass m, traveling with a velocity v, strikes a parked station wagon,id: cg1sss)2 wi av-vh3moh;+ who's mass is 2m. The bumpers lock together in this head-on inelastic collision. What fraction of the initial kinetic energy 3g2 si) hvvo+; s hcsd1-:waimis lost in this collision?

A 15-g bullet traveling 21hsl6.veh1 k k;laoyzj,87j6f 3 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/block combination moves vertically upward,fsk7; zoyh6 jlj16.ak 8lvhe .
(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 cxvt;5.eq++uosjjzq (ollides with a 3000-kg car traveling at 60.0 km/h souqju+exj;vs 5zt.( o+qth. 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 uls7164 ) z9 ha;0xebvhfxhwf0 +uxsekm/h east collides with a 3000-kg car traveling at 60.0 fz7 u+elsxw0 hsuxh01xh)6;a eb49 v fkm/h south. 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. Objp,g)ie: .0g1zmzodm we*( ynl- nt ll4ect A moves east with a momentum of 24 kgm/s. Object B moves north with momentum 10 kgmg(pml-g y1*l 4).e:iwz,nnteo z0 dlm/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 towar q m1r;0n8adqfqq:d7 jd 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 third fragment with an:q0rqdma ;q8j d 71fq 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 w k:e efr.(rc;xus, jcy+kty6)tt z./nvz2- l = + 21.0 m. Where rs x./ ctfte2yet,z v )ryu.;6kz+lkc-wnj(: is the center of mass on the x-axis?

  The center of mass of a two-particle system is at the origin. One partiqv4jdrlhf 88 :cle is located at (3.0 m, 0) and has a mass of 2.0 kg. What is the location of the second mass oq l84:v dfhj8rf 3.0 kg?

  Three masses are positioned as follows: 2.0 kg at (0, 0), 2sjg- by cl3x/* z00mbm.0 kg at (2.0, 0), and 4.0 kg at (2.0, 1.*m0gzc30jslbybm- x/ 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.d ql5;qt(g dzd 35t-dn0 m), and (2.0 m, -2. dn5-5zd qdttl; 3d(gq0 m), respectively. 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 + gro+ me0;hih3wj*seke46p nmass is positioned at (12, 0). What are the coordinates of a 4.0-kg mass which wjri+g +6;eehe*o 3n whs40 mkpill 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 the CM j08uma.w dk vm)3f / +u+kiazy*zu)soof a whole leg including the foot when the leg is stretched straight out. Assume the person is 1.60 m tall/ jw+dm8u3) ) 0+zskuv.z*ka iomyuaf .