What is the SI unit of momentumeqq6as1(4g6 vo :wdiqx x ,k8e?

  When a cannon fires a cannonball, the cannon will recoil backward because thk 6a xzqiz,55ce

  A freight car moves along a frictionless level railroad track at cons1;a6q2:aptns8uaghz1 9mlh v tant speed. The car is open on top. A large load of coal is suddenly dum:h augvaz1h2ql;s mp8nt619aped into the car. What happens to the velocity of the car?

  A child falls sideways off a sled while sledding on frictionless icfy kin iv11+fm9bc-1je. What happe1m c +1by- iivffjk9n1ns to the velocity of the sled?

  A rubber ball and a lump of putty td8f88xy dm sdls8h5-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 stickh xd tdy888sl5m8sd -fs to the wall. Which objects experiences the greater momentum change?

  A sailboat of mass m is moving with a momentum p. How would you represent its nb7-is ps hu;b199k 4 gzk7clc7seo d,kinetic energy in ter1c7 9; p97goln-ks bhbdiu kc4zsse,7ms of these two quantities?

  If you pitch a baseball with twice the kinetic energy you gave it in the prrzib;xn(,gbw ,c9. z sevious pitch, the magnitude ofr i,9(sg.b ,zxn ;wcbz its momentum is

State Newton's second la4e 3dnu abu9uexn +.9dw in terms of momentum.

State the law of conservait*te u )1q;vnm dpyuw)/;op8tion of momentum.

  The area under the c5 d+t-n mveiyn: (wer(urve on a Force versus time (F vs. t) graph represents

  Which of the following is an accurate stategb38;gpp0)s 4n mfqs ament?

  A small car meshes with a large tra q-5en3msntv8l1w7 jb z 3:sxuck in a head-on collision. Which of the following statements concerning the magnitude of the anxsq18wv3 3z : tn -b7ae5sjmlverage collision force is correct?

  Two equal mass balls (one red and the other blue) a n)k9 c(mzd;bi(01,tb cwte0mtud nb8re dropped from the same height, and rebound off the floor. The red ball rebounds to a higher position. Which ball is subjected tontb); z t(c ,db9ck0 wb0t1m(e m8unid 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 qf-l ef+-/aw t2vid: istationary bowling ball. 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 durinl q - f:t/-ivw2+defiag the collision?

  Two objects collide and bounce -hx4* ucolui8 off each other. Linear momentum

  A 3.0-kg object moves to the right at 4.0 m/s. It collk c6 to4qi5,e e .t)soed-tn4eides head-on with a 6.0-kg object moving to the left at ti)-n4t45,ke. o coq6dse ete2.0 m/s. Which statement is correct?

  A 100-kg football linebacker moving at 2.0 m/s tackles heardha hm 8j31a8d-on an 80-kg halfback runnia ma8 hj18dh3rng
3.1 m/s. Neglecting the effects due to digging in of cleats,

  In an elastic collision, if the momentum is conserved,8lv0hevzvsl.n. n+ bx,;uub1 then which of the following statements is true about kinetic eneh+bnb8zel u vvn .,0s.v1uxl;rgy?

  When is kinetic energy conserb oib(wi hetxxj y5vtow( 6d8( 5x))g6ved?

  In a game of pool, the whitshs8 )m.gp n-2e3frn ye cue ball hits the #5 ball and stops, while the #5 ball moves away with the same8emsfpy32n hg)-n r. s 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 collides with a heav 6rbd98og9x.m ckf2c+ 2qb vqxy exercise ball at rest, the beach ball's speed after thxboc 9q.mck28 gf+rbxd2 6q9v e collision will be, approximately,

  A golf ball traveling 3.0 m/s to the right collides 6(2f;ar lzyf 3xo/(b lzpgl4cin a head-on collision with a stationary bowling ball in a friction-f23 ra/(b(l; lfy gpfz4zxc6lo ree environment. If the collision is almost perfectly elastic, the speed of the golf ball immediately after the collision is

  A rubber ball with a spelzs, -phk7gx 1ed of 5.0 m/s collides head-on elastically with an identical ball at rest. What is the speed of the initially stopped ball after thgp1 s k7zl-hx,e collision?

  A very heavy object moving with s1xgzpf5jx y3-slno2pd7k ihw-f:5 5a peed v collides head-on with a very light object at rest. The c17gzk :j5odxhxw 2-p p5fasl f5y i3-nollision 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 cozs*xt u yu8ef7tuy*(7llides head-on with a very heavy object at rest, in a frictionless environment. The collision is almost perfectly elastic. The speed oe7sutt (*f*8yz uu yx7f the heavy object after the collision is

  A red ball with a velocity of +3.0 m/s collides head-on with a yellow baf h9ykhedn::cwe. y 3)ll of equal mass moving with a velocity of -2.0 m/s. What is the: 93eh.cn hd fewyy:k) velocity of the yellow ball after the collision?

  A very heavy object moving with velocity v collides head-on with a ver2t i er,n /s6g(mri zylbs466ey light object movini rsyzbmne s6gtl2i6/e 4 (6,rg with velocity -v. 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?

  In an inelastic collision, if the momentum is conserved, thebp1 wa ai+s (q(x0,jejn which of the following statements is true abje+ s(pq1 b0(xiwa,ajout kinetic energy?

  Two objects collide and sticp*00s 1uuto dwgwe()i8 q hprqp3:8cvk together. Kinetic energy

  A 3.0-kg object moves to thexbcfu j :q 5dvniv2556 right at 4.0 m/s. It collides in a perfectly inelastin 2uv5vb5 c5ji:fdxq6c 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 collia( uc .wjnoa3-des with a large object and sticks. Which object experiences the larger magnitude of momentu- nauj3a.( ocwm change?

  In a game of pool, the white cue ball hits the #9 ball and is dexy0 m7ipp xy-)xc u.b1 *zlwlb7x 84oc)zs9y iflected 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 ma/,2f91smukdm d3/i* jbu fxdesses, M and m. Which of the following statements is falsxbmds iu* f2 edfd,k /1ju/39me?

  Which of the following is a false 9nsqenw+9-c e/gvlz- statement?

  Tightrope walkers walk with a long flexible rod in orde07uh e/r2dyfo r to

  A plane, flying horizontally, releases a bomb, which explz*(luhco 21l oodes before hitting the ground. Neglecting air resistance, the center of mass of the bomb fru1* z2c l(oohlagments, just after the explosion

  Two cars collide head-on on a level friction-free roa) evjhg.wjg byz 650fvr 9eo9cd -m(u*d. The collision was completely inelastic and boufcgz(*6bev h jjdm 0 )5 r9.-ew9gvyoth 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 jv q n1t9 /tm8+mxgiu 8p2rbga6d *t4hee;yw(system of particles.

  What is the momentum of a 2000-kg truck travpurpp /rcsvb) 6+i (.c:b8 psxeling at 35 m/s?

  A 1200-kg ferryboat is movingnq we45fp 5y;h south at 20 m/s. What is the magnitude of its momentum?;4fhy 5qe pwn5

  A ball of mass 0.10 kg is dropped from a height oft t7m+ imn1jn, 12 m. Its momentum when it strikes the grountj 7,nt+imnm 1d is

  Two identical 1500-kg cars are moving perpendicular to each other. One t w+/nqqt3 ayv:u; b5dmoves with a speed of 25 m/s due north and the other moves at 15 m/s due east. vdb;y+5t/nqa: u t3qwWhat is the total momentum of the system?

  A handball of mass 0.10 kg, traveling horiaf -bk;3roz-3rzh we7zontally at 30 m/s, strikes a wall and rebounds at 24 m/s. What is the change in the momentum ozrk3w7h-r ;eo-3a bfzf the ball?

  A 0.060-kg tennis ball, initially moving5bly woeg,fx,33trl6 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. Who ,l,b g6re35tx y3lfwat is the change in momentum of the ball?

  A 50-kg pitching machine (excluding the baseball) is placed on a frozen pond. )+1w;ap+ sy k + toe;ibhfmlj:The machine fires a 0.40-kg baseball with a speed of 35 m/s in the horizontal direction. What is the recoiapyih+k 1wsfotb;mje +)l;:+ l speed of the pitching machine? (Assume negligible friction.)

  A 70-kg astronaut is space-walking outside the space capsule and i +op 6tinzzh*szc19g.s stationary when the tether line breaks. As a means of returning to the capsule pz16i9toz.hg *ncsz+ 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.(z+cma eq9kd 14(nynrc f7ef* 0 kgm/s approaches head-on a large object at rest. The small object bounces straight back with a momentum of c(fe*c+q anm4 dnk1yze 7(9frmagnitude 4.0 kgm/s. What is the magnitude of the large object's momentum change?

  You (50-kg mass) skate ow2zer uo/e:0l n ice at 4.0 m/s to greet your friend (40-kg mass), who is standing still, with open arms. As you collieuer2w:l0o/z de, while holding each other, with what speed do you both move off together?

  A car of mass 1000 kg moves to the right along a level, straight road ve 1t2up6+ywz6gzx*pat a speed of 6.0 m/s. It collides directly with a stopped motorcyc*62zw t pp6g1zxyv+ue le of mass 200 kg. What is the total momentum after the collision?

  A 1000-kg car traveling at 25 m/s runs into 88jv 2z 2ebp njkcaq+x1ah o.4the rear of a stopped car that has a mass of 1500 kg and they stick together. What iqx2 zvap kboa j.e4+821hncj 8s the speed of the cars after the collision?

  A railroad freight car, mass 15,000 kg, is allowed to coast along a level track rm f.wc :z)ft96 u fzwm2v;:3snnpbe5at 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 couplr.3fv:52 e fn pfn)szt69mmbuw wc;:zing?

  A railroad car, of mass 200 kg, rolls with negligible friction on a hor6j:da3 ..,w.yepghmagfly8u zm 0yyqe )d(t7izontal 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 will the car be moving u(t z7g 0fy6dy.a8:a.pyjhyd el,w e3q .gmm)after this happens?

  A 60-kg person walks on a 10018+kuq 8a +dffzz bwj.-kg log at the rate of 0.80 m/s (with respect to the log). With what speed does the log move, with+ wb8adz8+kfq1.fzuj respect to the shore?

  A 4.0-N force acts for 3.0 s on an object.k foxa4 kd.i2v+9fvm+ The force suddenly increases to 15 N and acts for one more second. What impulsefv+9 mx+f.vao24ikdk 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. fc8s tt;3ct/a What is the object's change of veloa ttfscc /8;3tcity?

  A 2000-kg car, traveling to the right at 30 m/s, collides with a brick w8*b;h dn /lrllall and comes to rest in 0.20 s. What is the average force the car exerts on nl8r*h l;dlb/ the wall?

  A 2.0-kg softball is pitched to you at 20 m/s. You hit the ball back alf:u vmktw*;esv0p/, bong the same path, and at the same speed. If the bat was in contact with0vk,*w;pu smfe/v tb : 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 sp+pw0eit h /hu02lncdz1xpl*nae o(th-j +1 v4eeds of the ball right before and right after(hzetu1op2 iwdha/- +t +nce lv0 j4hnl0x*p 1 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 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 4 :ns2md5w:gn ri*uu rmuzzle velocity od rnmusw2r*:: n4g u5if 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 or 66ml:gvzcsz i0:z:*rwv3a af a burning building in order to knock the door down. This requires a3i crzagmw:z *vl6av: zs 0r:6 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-aopnw/ ;gh+ svychk ucz8 ;51g1 a,eh the rate of 120 kg per minute. It falls 3.20 m to the ground. Assuming the water doesn't splash up, what average force does it ec a1hez8gyw v5 hk;/ao-c s;g+uph,1nxert on the ground?

  A toy rocket, of mass 0.12 kg, achieves a velocity of 40 m/v 2z(g(oq/q y,sx7fa ns after 3.0 s, when fired straight up. What average thrust forcayv2ng ,7z(fxsq / (qoe does the rocket engine exert?

  Two astronauts, of masses 60 kg and 80 kg, are initially at 4okn 1wn:ep 7grest in outer space. They push each other apart. What is their separation after the lighter astronaut has mok 1p7o4en wn:gved 12 m?

  A 3.0-kg object moves to the right with a speed of 2e+bk+u ol; iibopz-c 5j-o3t8 .0 m/s. It collides in a perfectly elastic collision with a 6.0-kg object moving to the le 53ooz-icu+;ep boibkt +lj8- ft at 1.0 m/s. What is the total kinetic energy after the collision?

  A 0.10-kg object with8)c 3xmh-3y w fb-b( v*zkkdi fm2l+zb a velocity of 0.20 m/s in the +x direction makes a head-on elastic collision with a 0.15 kg object initially at re8 2i )hf( +-bzb-xbcfzl3 *yvdkwmmk 3st. 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 block at rest. The hu.nr jq66s +h2euu( obullet emerges (the bullet does not get embedded in the block) with half of its original speed. What+hjqern (s6.ouuu h2 6 is the velocity of the block right after the collision?

  A proton, of mass m, at rest, is struck head-on by an alpha-particle (w p/7v7x0it* qmciq3+pen e08i nb;d cahich 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 equali + xcdcq7np 03ev8 ;0np7*ate miq/bis the proton's mass.)

  A 50-gram ball moving +10 m/s collides he(nzfxq ( exkir 16.)bpd 8:w:ze(icrwad-on with a stationary ball of mass 100 g. The collision is elastic. What is the speed of each ball )ipr:( (i zcwerw xb(dxe :.6z 1qkf8nimmediately after the collision?

A ball of mass 400 g moving toward the east with a speed of 3)tsd;i7lj 9 x zcek sy.ww-0t9.70 m/s collides head-on with a 200 g ball sitting azt-t)7d;wlkji e.s9 9 xcsw y0t 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 a2gxbr .gj pcbejqck 3 30,(ny:g:tup 7 speed of 5.0 m/s. It collides head-on with a 3.0 kg mass at rest. If the collision is perfectly inelastic, wh(xep q n 0gc3g2,b .bu 3yk:ctgjr7jp:at is the speed of the masses after the collision?

  A 2.0-kg mass moving to the east at a speed of 4.ildg; rx59rk2 ag fq160 m/s collides head-on in a perfectly inx6alr;dr 2 1 iqgk9g5felastic collision with a stationary 2.0-kg mass. How much kinetic energy is lost during this collision?

  A car of mass m, traveling with a velocity v, strikeslr8p9o5 *mymw uxv b*5 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 ey** xbp 5uo8w lvm9rm5nergy is lost in this collision?

A 15-g bullet traveling 213 m/s in a ver /7d9wpun-ycw tical direction buries itself in a 2.4-kg block of wood a rest directly above it. As a result, the bullet/block combination moves verticallp wcwnu9-/d7y y 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 travelin x7dnt6 mpa4q8 l31arvg 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 speed of the cars after cox a7 m64ap8dvlnt3rq 1llision?

  A 1500-kg car traveling at 90.0 km/h east collides wir m o6f.8plxt4grle 8sx2 *iy)th 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 g*x s8i)rpy6r 4lt2xmle.8o f motion of the cars after collision?

  Two objects move on a level frictionless surface. n pn qo8/axnw8url(; 2 ;h/pvw Object A moves east with a momentum of 24 kgm/s. Object B moves north with momentum 10 kgm/s. Tlaqw(nnv /8pw8h op xu2;n/r ;hey 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 ofvh ft+ .fg 3ctj8w6et wwa:sjx +8 ;d)fn0rn.l 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 d8cn nx l6 wv r+ f.wwgs:) a.e3ft8ft0j+tj;hm/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 am 6bxo6+ hhrm5t the origin, and a 10.0-kg mass sits at x = + 21.0 m. Where is the cem+rhmx66 ohb 5nter of mass on the x-axis?

  The center of mass onuk+.uy86gcrn) t5y uf a 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 locangn 6 y8u5yc tku)ru+.tion 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), axi5ksr u i.,ap ;sms53nd 4.0 ks;35m ,x.siausip5k rg at (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)lspv gc+yp c t54v1zm0x .d71j, (1.0 m, 1.0 m), and (2.0 m, -2.0 m), respectively. What is the location of the cms.z1j7 vy1vd t5 0c pl4cxp+genter of mass of the system?

  A 3.0-kg mass is position7b36syi (w 2ajk u *x1nuqrrw:ed at (0, 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 the system of three masses bein wwrky7 (6r12x*ajsu3in q:ubg located at the origin, (0, 0)?

  Use Table 7-1 to calculate the r9uss+ ihw*) r6o rx*p/ fu+zeposition of the CM of a whole leg including the foot when thzrw *srfrh9/s ui+*xuep)6o+e leg is stretched straight out. Assume the person is 1.60 m tall.