What is the SI unit of momentum h5ymaf 3i0 w0a7brm5j?

  When a cannon fires a cannonball, the canuh81) dser c/v7kd0xbnon will recoil backward because the

  A freight car moves along a frd si,*7pxaqt6 cwslrr(k5 ),i ictionless level railroad track at constant speed. The car is open on top. A large load of coal is suddenly dumped into the car. What hadqls(irc,, r pxat7s* 6)5 ikwppens to the velocity of the car?

  A child falls sideways off a sled while sledding on frictionless ica+w3eq wxfa5g)r //rue. What happen+ewa wr/ 3f/5)rx uagqs to the velocity of the sled?

  A rubber ball and a lump of putty have equal mass. They are thrown with equal ug-( t,d, np* bof:ucvspeed agat,dp*:-cu ovnb,u (fginst a wall. The 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 you+1,sqsrnas1r o;w mh5c6o1x i represent its kinetic enerhs11 sor5w,q;cna6+msi 1 xorgy in terms of these two quantities?

  If you pitch a baseball with twice the kd r1il3kk9 cc 1s8q8(*x4g: r vcupgdcinetic energy you gave it in the previous pitch, the magnitude of its momentum i:rx ( ki41cuc8* k 8cc9 q3lgvs1pddrgs

State Newton's second law in terms of momentum /5 :cxonwj3um)7 6bbnqfay+h .

State the law of conservcvt g z1 ,bas)/g98gzyation of momentum.

  The area under the curve on a Force xhd1w;q7zhw1uqhk 7v cv6x*fjq: 4 2jversus time (F vs. t) graph represents

  Which of the following is an accur6,*dgpoa )lxjt*rce (.e,2w gymzm8 tate statement?

  A small car meshes with a large truck in a healdl/x:;g4hhgdsq8 2 jd-on collision. Which of the following statements concerning th/dsxjd2; hqhg g4l:8l e magnitude of the average collision force is correct?

  Two equal mass balls (one red and the oth3 0 yguzb /-pnj*ybo(fer 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 magnitude yp3-yuboz/g0*n f( jbof impulse during its collision with the floor?

  A Ping-Pong ball moving east at a spee)/3nktccbc v gzvvp00;n,; p5bzx (zy d of 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 object e 0xn zbppk, ; cv03ncvzygv)z /(;t5bcxperiences the greater magnitude impulse during the collision?

  Two objects collide and bounce off each other. Linear momhz0rfpt9k(j6 qwin 7 6entum

  A 3.0-kg object moves to the right at 4.0 m/s. It collides head-on withpyk /cv+(nz5 k a 6.0-kg object moving to the lezv/k(ykpc5n+ ft at 2.0 m/s. Which statement is correct?

  A 100-kg football linebacker moving at 2.fiv 1ps/w q+ 2/0ilm6r iyhvx:0 m/s tackles head-on an 80-kg halfback ryq rvw1/ii2fm/vp6+ixs h:0 l unning
3.1 m/s. Neglecting the effects due to digging in of cleats,

  In an elastic collision, if the morm)o r hmr+tdig4, 3sxwev*4-mentum is conserved, then which of the following st g- v+rm w,rhom4srxdt*4ei )3atements is true about kinetic energy?

  When is kinetic energy conserv+ztg9,me6lwl2 3st c,bnzka) ed?

  In a game of pool, the white cu;6sv7heq9 (o wjgz a:de ball hits the #5 ball and stops, while the #5 ball moves away with the same velocity as the cue ball hadzgse( j;h9 wao dvq7:6 originally. The type of collision is

  When a light beach ball rolling with a speed of 6.0 m/s 35ft*z0 waw i+ir9qpz collides with a heavy exercise ball 9iqzp0* zf r+a3w5i wtat 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 0y)8 kyten1xc+ fra y2j.y0sxk37 ypga head-on collision with a stationary bowling ball in a frictionsyfk 3e .kt y+n0y1jx7yg rcap)x2 0y8-free environment. If the collision 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 elxs xh rf6fa20otg3p 7*astically with an identical ball at rest. What is the speed of the initially stopped ball after the collisionfr632pag0x hotx 7s*f?

  A very heavy object moving with speed v collides he.7qbz5 2 hey6fcu xj.pad-on with a very light object at rest. The collision is elastic, and there is no fryujxbcz7 .e h q.6f52piction. 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 he:sp2hi1a.shdq 8v ,huad-on with a very heavy object at rest, in a frictionless environment. The collision is almost perfectly elastic. The speed of the heavy objvh a2s dihp h,su1q:.8ect after the collision is

  A red ball with a velocity of +3.0 m/s collides head)o 2ve1 h ub;h ) a lbuf5-(cuzcys/iw*q8o;bc-on with a yellow ball of equal mass moving with a velocity of -2.0 m/s. What is the velocity of the yellow bai 8o)uyvco/b-h;scu cw* b eh;l1q(52 )afb zull after the collision?

  A very heavy object movingdu ( o7(a8onec with 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 slows down. What is the speed of the8au(co(7d neo light object after the collision?

  In an inelastic collision, if the momentum is conserved, thenh5t05o6w v8*nlug iei which of the following g o tiev*liw 58u06hn5statements is true about kinetic energy?

  Two objects collide and stick together. Kinetic e47k/ h+ .vxb6hcum+c stw:dr znergy

  A 3.0-kg object moves to the tn8 xu5kiqd 2b3j:w iu4 zt7f3k 73rckright at 4.0 m/s. It collides in a perfectly inelastic colli uw3: ctx8rdkfi23kn74 iq tj5b 7kuz3sion 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. Whic-i2a d.br )hikh object experiences the larger magnitude of . i-bakh di2)rmomentum change?

  In a game of pool, the white cue ball hits the #9 ball abcn*pu*.7 h rxymo-u v v(4hb)nd 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 stab8r kd1qc4y-d0rly sdo1ftsz *5hc)9tements is false?zk db-1ysd o 5l90qc s)1 d4*h8rtyrcf

  Which of the following is a false statement)hf (lb6 z7rck?

  Tightrope walkers walk with a long flexible rod in order t8s/k h19x c 2rz9bycfgo

  A plane, flying horizontally, releases a bomb, which explodes before,3iv* ikd*xm+2 oobhlx e2p4k hitting the ground. Neglecting air resistance, the center of masvpi*2*i ,3m2xk b4eohkdlo x+s of the bomb fragments, just after the explosion

  Two cars collide head-on on a level friction-free cguypim)5o5tpa ,75kx,8d jb road. The collision was completely inelastic and both cars quickly came to rest during the collision. What is true about the vel a cj5b75,8kmyduigp pot)x5,ocity of this system's center of mass?

State Newton's second law for a sysr51k-rv 8 ci,xbcy 5ut6hbt :btem of particles.

  What is the momentum of a 2000-kg truck traveling at 35b g5 ope9)sj6g m/s?

  A 1200-kg ferryboat is moving south at 20 m/s. What is the mag9k un-xv-x pf+k+:mh+ 6yk idnnitude of its momenkd9u-kp:+6fkny ixm-x+ h nv+ tum?

  A ball of mass 0.10 kg icc)()nxk*0 q2qfw zm k0i:zjf s dropped from a height of 12 m. Its momentum when it strikes the ground i mc):)kjz fq0znc2xw( iqf*0ks

  Two identical 1500-kg cars are moving perpendicular to each other. One moves w 7 i0e78x/yoph4uhqwgl (8t mlith8 4w0hxt l8q7migp(u/lhyeo7 a speed 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, hw +xq+iz4q,)3wuvlp ;ffutr0 d6ga3 traveling horizontally at 30 m/s, strikes a wall and rebounds at t)pd0+6iq+ uzf ,3a g 3wlvur;4fqx wh24 m/s. What is the change in the momentum of the ball?

  A 0.060-kg tennis ball, i xi d8,m*vfv)+n1jlasnitially 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 momemv8n,ja+s lv) dx1*ifntum of the ball?

  A 50-kg pitching machine (gci q5-p1nlqh/ i)v +pw1o0um/5 ek phexcluding 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 r)cpe i/nh0-1pmog5vwk +lu qhqi15/ pecoil speed of the pitching machine? (Assume negligible friction.)

  A 70-kg astronaut is space-walking outside the space caps6 (hwfbsj lec:: dszv)*-cre/ule and is stationary when the tether line breaks. As a means of returning to the capsule he throws his 2.0-kg space hammer )vs:dbf 6cjl-*ez c: (hrsew/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 obj 6msdexpm.)2ixkkg-2, /hji pect at rest. The small object bounces straight backx -pp2k.simmik2,h ed6 )jxg/ 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/s to gfbd/zme gr w.-62 re;creet 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 bdz;w gm2re6.f/re-cmove off together?

  A car of mass 1000 kg moves to the right along a leud -vpy1+p wa3akh+;h vel, straight road at a speed of 6.0 m/s. It collides directly with a stoppedhvy-a+a1whp 3+pku;d 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 o7uf9p9dwm/ fs f a stopped car that has a mass of 1500 kg and tf9sufp m7 w9/dhey stick together. What is the speed of the cars after the collision?

  A railroad freight c fe9o71rll0 yjar, mass 15,000 kg, 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, initialy 9 e1j7ro0fllly at rest and with brakes released. What is the speed of the two cars after coupling?

  A railroad car, of mass 200 kg, rolls v36xc*+n4nzx -jexshwith negligible friction on a horizontal track wihe -v3+xsjz4n x6nx*cth 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 thyu*eo; bqhh 94e log). With what speed does b*h4qeoy;h 9uthe log move, with respect to the shore?

  A 4.0-N force acts for 3.0 s on an object. The force suddenly 2+zhwb6fcd)r increases to 15 N and acts for one mw+cr z 2df6hb)ore 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 objez-axic734 mezrd 3dp7ct. What is the object's change of vel dpe7z7c -drxa 3z4m3iocity?

  A 2000-kg car, traveling to the right at 30 m/s, cd.h sy l1(esv8ollides with a brick wall and comes to rest in 0.20 s. What is the average force the car exerts on the wallvds1 (.h sy8el?

  A 2.0-kg softball is pitched to you at 20 m/s. You hit the ball back along2myn/m8* uhl s the same path, and at th8/lmshn* uy2me 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 of95 5bbe 0clp(t5,wgm;ivoegg the ball right before and right after hitting(5 ,bwiop5gee0cv bg95l;g tm 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 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, wi0aw xwz58k8iw bbz6k-th a muzzle velocity of 750 m/s, at the rate of 300 rounds per minute. What is the avez x8kw5wz-68 kwa0bibrage force exerted on the machine gun mount?

  A fire hose is turned on the door of a burning building in order to knock dza 6pj.s hpf1t83 nvrgo0*l8the door down. This requires a force of 1000 N. If the hose delivers 40 kg per second, what pfrjt8nhp ld8g *v6a3z 0o1.s 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 krhmri (ay7m /o/4ml7q :pn +vfg per minute. It falls 3.20 m to the ground. Assuming the water doesn't splash up, what average force does if:l/m+/h m p4ni7aqmr ( y7vort exert on the ground?

  A toy rocket, of mass 0.12 kg, achieves a veloci0.lniisg: u4 -wafqt7.t)ieq 2 aw r3mty of 40 m/s after 3.0 s, when fired straight up. What average thrust force does4f: nite.qqgla-3s072)rwit. au mwi the rocket engine exert?

  Two astronauts, of masses 60*x :yhcl8,ngt kg and 80 kg, are initially at rest in outer space. They push hyx* 8gn:t lc,each other apart. What is their separation after the lighter astronaut has moved 12 m?

  A 3.0-kg object moves to the ri-8aie vc:qua :ght with a speed 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 kinetic energy after the collis vaac8euq-::iion?

  A 0.10-kg object with a velocity of 0.20 m/s in the +x directiont24bi6;ooga lcjc m *6 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 o;boa66*l2jtcc o mg 4ibject after collision?

  A 10.0-g bullet moving at 300 m/s is fired into gc4m-9c 6hvlr dk ,m*npazo: r-c0xr-a 1.00-kg block at rest. The bullet emerges (the bullet does c dnmk *,:h- 40crg zcrr9-m 6lo-xavpnot 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 struck head-on by an alpha-partvka:6d/qug y5 h .c4tyicle (which consists of 2 protons and 2 neutrons) hky: /ad qgt4c6uv.5y 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 man:3 d/+r ztntq zrbgfz0)4z7grnf,f 5 ss 100 g. The collision is elastic. What is the speed of ea:bt fz7gzr0qn+f /5g3n4r fd zr)z,ntch ball immediately after the collision?

A ball of mass 400 g moving t65+ uz58v p hviin3c hxq3sks(oward the east with a speed of 3.70 m/s collides head-on with a 200 g ball sitting at rest. The collision is perfectly elastichnu5 +zvi6c8hk3q(v3i 5xsp s .
(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/s0 buf; x9:kz2ur u*unq. It collides head-on with a 3.0 kg mass at rest. If the collision*u; 2 qb9zf:r0 xunkuu is perfectly inelastic, what is the speed of the masses after the collision?

  A 2.0-kg mass moving to the east at a9kdeh af35ob7 speed of 4.0 m/s collides head-on in a perfectly inelastic collision with a statiok 9e3hb7a5odf nary 2.0-kg mass. How much kinetic energy is lost during this collision?

  A car of mass m, traveling winpfl kb, :p bgb-(c5nhe1ub8 ,th a velocity v, strikes a parked station wagon, who's mass is 2m. The bumpers lock together in this head-on inelastic collision. What fraction of the initial kinetic energy is lo, nkb p( 1n:b-,8ebbpg ulchf5st in this collision?

A 15-g bullet traveling 213 m/s in a vertical direction buries itself in a 28ul0s5v+kg,hnk(g dd bx9zx, .4-kg block of wood a rest directly above it. As a result, the bulletx8xuhnb+59gksd zd0 (vk, , lg/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 atas9ikc b8.n2vkia* -noe3ak8o ;p6jh 90.0 km/h east collides with a 3000-kg car traveling at 60.0 km/h south. The two cars stick together aftc v k 9hk*kan.s-oboa ip2 e38ia8n;j6er the collision. (See Fig. 7-1.) What is the speed of the cars after collision?

  A 1500-kg car traveling at 90.0 km/h east collideki2l4m2 pqi j97c n+zxs with a 3000-kg car traveling at 60.0 km/h south. The two cars stick toget knm2z7cx pj +94liiq2her after the collision. (See Fig. 7-1.) What is the direction of motion of the cars after collision?

  Two objects move on a l)em i ;p1 x0j*tj9xarmevel frictionless 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 injxx01j;mmr* ) pa 9tieelastic collision. What is the magnitude of their combined momentum after the collision?

  A small bomb, of mass 10 kg, v4)q-s99z p5 ah;ops eia3grxis 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 thirdirso pxs ; )ha9 -v5ze49qgap3 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 sits at x = + 21.0 m. Whersd,ca9ydf8 d d6(dq7de is the center of ma d(9dfs67 q,cyadddd8 ss on the x-axis?

  The center of mass of a twj 0relnh.a5: y6htje0o-particle system is at the origin. One particle is located at (3.0 m, 0) and has a mass of 2.0 kg. Wha6r jlenh5yt:j0. eah0 t is the location of the second mass of 3.0 kg?

  Three masses are positio 3drhrush bx+ md59/3aned as follows: 2.0 kg at (0, 0), 2.0 kg at (2.0, 0), and 4.0 k had+3d9 5urb /r3shmxg at (2.0, 1.0). Determine the coordinates of the center of mass.

  Three masses, 1.0 kg, 2.3ps fq)53))kqzh j nga4vhjv/0 kg, and 3.0 kg, are located at (0, 0), (1.0 m, 1.0 m), and (2.0 m, -2.0 m), respectively. What is the location of the center of mass of the systema)h zvj3hqs3fq)kv54)j/g pn?

  A 3.0-kg mass is positioned at (0, 8.0), and a 1.0-kg mass is po ow5fvm9m(oa5n o;2vositioned at (12, 0). What are the coordinates of a 4.0-kg mass which will result in the center of mass of the system (a ono55mmo fo;v2wv9 of three masses being located at the origin, (0, 0)?

  Use Table 7-1 to calculate the position of the CM of a whole zja/kbo;+wj n qop*6-u/d y p)leg including the foot when the w nk+pu* /6 -a/dpjzobyo )q;jleg is stretched straight out. Assume the person is 1.60 m tall.