What is the SI unit o l7nfx/ugd08 af momentum?

  When a cannon fires a cannonball, the cannon will recoie iqlqx85c m74l backward because the

  A freight car moves along a frictionless level s8ztf8z +c,fd railroad track at constant speed. The carcsz ,t 8ff+8dz 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 sledding on frictionless ice. What haphnq;2-zkwi;3owpo2fb3a )nx / ln6a dpens to zna6wx h bfp ;3qo/do3al;ni22)wn -kthe velocity of the sled?

  A rubber ball and a lump of putty havk,u8*e*,p-xx4q ew hb *puajpe 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 expu*4*p8- jephpae*,b q,wuxkxeriences the greater momentum change?

  A sailboat of mass m is moving wit4pi+ 9ve:ds+ ktid.y uh a momentum p. How would you represent its kinetic energy in tesd9t .+kyivud:+p ei4 rms of these two quantities?

  If you pitch a baseball with twice the kinetic energy you gave it in the prev9,kb5srq p34ews , lz 8b-s,nzdb 3fvzious pitch, the magnitude of its momrs-,v s,zzpbdbs,n4ekq w335 z lb89fentum is

State Newton's secondwby s)w;d 8o,q a(fg3gp4 ;aja law in terms of momentum.

State the law of conservation of momen0qp kh4 qv4x7ytum.

  The area under the curve on a Force versus time (Ftu7-xkcxv2 fxbus2 x*l4 (hfdvcbnu;d., w+; vs. t) graph represents

  Which of the following is an a(ngpy *ou1b .z*b n;o+sik gy-ccurate statement?

  A small car meshes with a large truck in a head-on collision. Which ph,:, *cqickxof the following statemeni k*,c xc,q:hpts concerning the magnitude of the average collision force is correct?

  Two equal mass balls (one red and the other blue) are dropped frqp-x*tp q:ay0 om the same height, and rebound off the floor. The red ball rebounds to a higher position. Which ball is subjected to the greater magnitude of impulse during its collision with the yt:xq0qp*a p-floor?

  A Ping-Pong ball moving east at a speed of 4 m/s, colliderc5x) vd6la*zo3f *m rs 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 experiences the greater magnitude impulse during the collis zmr xda6*5fvc)r*lo3 ion?

  Two objects collide and 799fa6pi* vfu. fzt yfbounce off each other. Linear momentum

  A 3.0-kg object moves to exw7-ja ax6njo7v9k e2lk+,,uc h.yc the right at 4.0 m/s. It collides head-on with a 6.0-kg object moving to the left at 2.0acwehx7x,ucvl9-je oy6 + 2ka7,jn. k m/s. Which statement is correct?

  A 100-kg football linebacker moving at 2.0 m/s tackles head-on an 80-kg halfbacaf4 xb,d i*mk+uhr hyr5k+( 9ok rkab(4xr,fmd+h5 u hk9ro *i+yunning
3.1 m/s. Neglecting the effects due to digging in of cleats,

  In an elastic collisio3h;(otie ue81pjenby/uyv,7 : zwuwxw2o y68n, if the momentum is conserved, then which of the following statements is true about kinetic en 721he;6oeuti( b8xpu:y v8wwzej ,owy/u y3nergy?

  When is kinetic energy conser+,8ip+p2*ugqhereo5ht7 x w kved?

  In a game of pool, the white cue 5mv*y*sjps3,d ) agg98ec mn ukr3uj8ball hits the #5 ball and stops, while the #5 ball moves away with the same velocity as the cue ball ha)y8pns 3s*5 vm8, cgdkeu j3amgr u*9jd originally. The type of collision is

  When a light beach ball rolling with a speed of 6.0 m/s cq2fffkhsu (skpsc*n 9092 g/collides with a heavy exercise ball at rest, the beach ball's 2ssc u29hk(*n 0 qcg sfk/ffp9speed after the collision will be, approximately,

  A golf ball traveling 3.0 m/s to the right collides in a head-on colq2okj 9ag+5ygsbo d 1: sv.4uflision with a stationary bowling ball in a friction-free environment. Ifu4ao5ydgjq+k o1g 9:bvs2s .f 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 hev-l+b genp 3v+oa:n,f ad-on elastically with an identical ball at rest. What is the speed of the initially stopped ball after the collisi+ ,alo vpvf:-3 e+nngbon?

  A very heavy object moving with speed v collides head-on ca0i2r/:dl7yb3 nvghwith a very light object at rest. The collision is elastic, and there is no friction. The heavy object ba370ib/nghyvrd cl2: arely 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 aevu66/fo ppe. very heavy object at rest, in a frictionless environment. The collision is almost perfectly elasep po6. v6feu/tic. The speed of the heavy object after the collision is

  A red ball with a velocity of +3.0 m/s c,ev. h)5t1v *nzbknpr ollides head-on with a yellow ball of equal mass moving with a velocity of )k,zn5n.prvh *ev1bt -2.0 m/s. What is the velocity of the yellow ball after the collision?

  A very heavy object moving with velocity v collides head-on with a very l9:vi nhxe/7/6r a zhjpight object moving with velocity -v. The collision is elastic, and there is no friction. The heavy obj/h hjn rz/i axv67:9epect barely slows down. What is the speed of the light object after the collision?

  In an inelastic collision, if the momentu p),p5lfa 92x8opugvem is conserved, then which of the following statements is true a5 vu9lo8g2p xe af)pp,bout kinetic energy?

  Two objects collide and stickk.nf6yrc4l 6y together. Kinetic energy

  A 3.0-kg object moves to the righe vy f4n1m83 8mklmw:mt at 4.0 m/s. It collides in a perfectly inelastic collision wim4mf n e3wlvm1 8k:8myth 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 (h dfjet6 gbz 1wp/)t(object experiences tp(twb)1d/ gfzh6( ejthe larger magnitude of momentum change?

  In a game of pool, the wiwrc/+sd5 t4a hite cue 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 following statements isav9 3x*z1 4r3 pvcl+dlt-h cai false?i rcxh41 3 9vvaal3p*dczt-+l

  Which of the following ( ckjw p3zi2ji(*qry 0mgybv..r9nv 9dvvd(7is a false statement?

  Tightrope walkers walk with a long fl9 bw4pkl ;3xk*gmu)tdexible rod in order to

  A plane, flying horizontally, releases a *b r drpq;n)j6whh k64bomb, which explodes before hitting the ground. Neglecting air resistance, the cehr46p)h* wr6qdjb nk; nter of mass of the bomb fragments, just after the explosion

  Two cars collide head-on on a level friction-free road. The collision was complexn. jpafpet/zer(7 9uea+;v 7 tely inelastic and both cars quickly came tetzrfv/p9 na;7.pa ue7ej(+xo rest during the collision. What is true about the velocity of this system's center of mass?

State Newton's second laihq ae0oenxldajt)0 1n;0gcqp(ff* ub5 7- 7aw for a system of particles.

  What is the momentum of a 2000-kg truck travel c **xk,/akf xnw-qra-ing at 35 m/s?

  A 1200-kg ferryboat is moving south at 20 m/zgtqb)n s+)(e f7zre9zx(f;ds. What is the magnitude of its momentum?nf z bsx7)geq+z)t 9 d(;re(fz

  A ball of mass 0.10 kg is dropped froc)lf c eppx -.+oi79bxm a height of 12 m. Its momentum when it strikes the epxc9io 7b px.+c-)l fground is

  Two identical 1500-kg cars are mo yu 9(gqwnhed71g*+x pving perpendicular to each other. One moves with a sp+9xdu1wyq( *7n p ggheeed 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 w*j90xos0 r /luk,h/ -hp ht*1lpakmm 30 m/s, strikes a wall and rebounds at 24 m/s. What is the change in the momentum ofthw1 ra/mo 0j*up shmlh0*kk, p-/x 9l the ball?

  A 0.060-kg tennis ball,xr /+e- bek*kh initially moving at a speed of 12 m/s, is struck by a racket causin e-r*/xbek k+hg it to rebound 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 baseball) is placed on a frozen pondoo7t3i7zr5bed 2 i7fq. The machine fires a 0.40-kg baseball with a speed of 35 m/s in the horizontal direction. What is the recoil speed of the po2 7eob57ziq f37 tdriitching machine? (Assume negligible friction.)

  A 70-kg astronaut is space-walking outside the space capsule and is statior+g t7 v,oqoni ftuy70rw x-+/nary when the tether line breaks. As a means of returning to the capsule he throws his 2.0-kg space hammer at a speed of 14 m/s rn+oit7t r/ uv-qo0w,+g fxy 7away from the capsule. At what speed does the astronaut move toward the capsule?

  A small object with mqmnb94g04i j27xxpl comentum 5.0 kgm/s approaches head-on a large object at rest. The small object bounces straight back with a momemjbl 74x9ni c0g2pqx4 ntum 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 greet your friend (40-r78 ik2 *pxnywubw5;mkg mass), who is standing still, with open arms. As you collide, while holding each other, with what speed do you both move of iy8k 5b;2m u*n7pxrwwf together?

  A car of mass 1000 kg moves to the right alon65, o gm1icl motv(5aqg a level, straight road at a speed of 6.0 m/s. It collides directly with a stopped motorcycl15mo at(5c,6ivog ql me of mass 200 kg. What is the total momentum after the collision?

  A 1000-kg car traveling at 25 m/s runs into the reaa-beyt*,*ahai4 n 8cokosc8 1d v(-uhr of a stopped car that has a mass of 1500 kg and they stick together.oiu(vyc h-d1hte 4 n*,-*baao8a8sk c What is the speed of the cars after the collision?

  A railroad freight car, mass 15,000 kg, is allowed to coast wffy:,fvd v43along a level track at a speed:fv fy3w4v, fd 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 coupling?

  A railroad car, of mass 200 kg, rolls with negligible friction on a horiz s0.gutl-j9 ugwq0 bi-ontal track with a stuqlg 9w0i.u g-s 0b-jpeed 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 gq6t5 ,da4j8 wrr*xz79lzzxx -kg log at the rate of 0.80 m/s (with respect to the log). With what speed does the log move, with respect t8zlxg65 d9x47j a zxzrr,*qwto the shore?

  A 4.0-N force acts for 3.0 s on an object. The force sudden8*qo,pvf1v oz-an6n: vzf*wuly increases to 15 N and acts for one more second. What impulse was imparted by* fv 81n-*wvpnf,: vzzuqooa 6 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) lu6 0wo:+e:st2nts+bl vvjx object'oj +us:)s0bt6lve w2vx:t+ l ns change of velocity?

  A 2000-kg car, traveling to the right at nn*r 6a.fz+h g30 m/s, collides with a brick wall and comes to rest in 0.20 s. What is the average force the cah*agn.rzfn+6 r exerts on the wall?

  A 2.0-kg softball is pitched to you at 20 m/s. You hit the ball back along the (ft3u5w3pln*. kkm8skhv-d rf, e *bosame path, and at the same speed. If the kh,ml.u b t 33*nf*vsw8-d(5o rekfkp 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 bam)q p9 :iut5obll 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 and the table top lasts 0.15 s, what is the magnitude of the aveopbmt: 9)qi u5rage force exerted on the ball by the table top?

  A machine gun, of mass 35.0 kg, fires 50.0-gram bullets, wiefv2c3zj1et ;7e3b ik2 :otd nth a muzzle velocity of 750 m/s, at the rate of 300 roundsi;fb23ne ko: t 1cte2e7djvz3 per minute. What is the average force exerted on the machine gun mount?

  A fire hose is turned on the door ofqza8q g8ky *dzzl+c )xv(33 v4ndx.yb a burning building in order to knock the door down. This rzvc*)b. x(+da x3dnz3 lq4yq88vgkzy equires 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 the rate ;a2 lzut us,5iof 120 kg per minute. It falls 3.20 m to the ground. Assuming the water doesn't splash5sa,i z2 ltu;u up, what average force does it exert on the ground?

  A toy rocket, of mass 0.12 qftohh)p00 eprd /;2ekg, achieves a velocity of 40 m/s after 3.0 s, when fired straight up. What average thrust force0p2r)q0th/e p ;ehf od does the rocket engine exert?

  Two astronauts, of masses o 2z 5tnc1 g.hhu;r* )qec pe wul2o9zd2h,9qn60 kg and 80 kg, are initially at rest in outer space. They push each other apart. What wn.1euh 2l uzdphe,c 2h;gno59tzq*2c)q 9oris their separation after the lighter astronaut has moved 12 m?

  A 3.0-kg object moves to the right with a speeducnl; nys +h13ssk,5i 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 collisik,il13n 5+h s suy;ncson?

  A 0.10-kg object with a velocity of 0.20 m/s in the +x direction makes a head4 y+42 h. cv x/kpvsmkvqud8(d-on elastic collision with a 0.15 kg object initially at rest. What is the final velocitkudv y s.h(mv4d c42xq/8k+vpy of the 0.10-kg object after collision?

  A 10.0-g bullet moving );(kryfg z wvb1r752wmybv1gat 300 m/s is 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 s(k; )byg vrzy 7wv5r 1gwf2mb1peed. 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-zkfca::4t 7gk+ ea 8nkparticle (which consists of 2 protons and 2 neutrons) moving at speed v. If the collision is com:t:zn4 c7aa 8efk+kgk pletely 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 hm zz*24y 1ysigxyq i.+ ,9y6tbld elb(ead-on with a stationary ball of mass 100 g. The collision is elastic. What ,ge2qy. l9l i641biyxsz+zyyt md b(*is the speed of each ball immediately after the collision?

A ball of mass 400 g moving toward the east with a speed of 3.70 m/s c5o fv 43k2 ovm+z;pr(e.dveds ollides head-on with a 200 g ball sitting at rest. The collisiopmevvo; oszdr.v53+ k4f( 2e dn 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 wi keyz u.(ev26c .,ddkn*ldfo:th a speed of 5.0 m/s. It collides head-on with a 3.0 kg mass atf.(d keu dy.neock2 l: *dz,v6 rest. If the collision is perfectly inelastic, 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/s collides hi;ogb2;q w6 xgead-on in a perfectly inelastic collision with a stationary 2.0-kg mass. How w6 ;2gqb;xio gmuch kinetic energy is lost during this collision?

  A car of mass m, traveling )yob365cx+r lxg: aaj with 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 lost in this collision yaljc:ob6 r)+g5xx3 a?

A 15-g bullet traveling 213 m/s in a vertical d 2xrfh6vd(e +80kdnub irection buries itself in a 2.4-kg block of wood a rest directly above it. As a result, the bulleundb8vk 602 xf+(h dret/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 ata 7 v*sw.igm,tpd7( xy 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 collisioxdaw,7 isyg7(.pvm*t n. (See Fig. 7-1.) What is the speed of the cars after collision?

  A 1500-kg car traveling at 90.0 km/h east collides with a 3000-kg car tra1- +da1knfr) x w*6oeohry; ksveling at 60.0 km/h south. The two cars s yw6xef+ra1krk; sn )ooh1*d -tick 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. Objyzh m jot1i 8+psh)l/)ect A moves east with a momentu+8))p1 ohyhslzjtmi /m 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 after the collision?

  A small bomb, of mass 10 kg, is moving toward the North wk80x e8 yser1t7s0vu2itp p( bith 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 a mass of 1.0 kg. Whatx0t8upsyt2ep 7e0si1v r b( k8 is the velocity of the third fragment? (Neglect air friction.)

  A 4.00-kg mass sits at the vuwiao 2:ea;0origin, and a 10.0-kg mass sits at x = + 21.0 m. Where i e2;iw0ovua :as the center of mass on the x-axis?

  The center of mass of a two-particle system zvk,87l2dn v 4+f vgryjs e(-tis at the origin. One particle is located at (3.0 m, 0) (vks tvz+, d47erv f2-l 8ygnjand has a mass of 2.0 kg. What is the location of the second mass of 3.0 kg?

  Three masses are positioned as follows: 2.0 kg at (a1/rt,;y y5 oh96ianqw+bxlm0, 0), 2.0 kg at (2.0, 0), and 4.0 kg at (2.0, 1.0). Determine the coordinates of the cen,;y 9aw6lxi51ay no/tqrm +hb ter of mass.

  Three masses, 1.0 kg, 2.0 kg, and 3.0 kg, are located atk osw40y xqwemtx1l3 x/nz ,5;r0r8rl (0, 0), (1.0 m, 1.0 m), and (2.0 m, -2.0 m), res5 ,x8rkx 1no0 rtm0ws 43ely zr;wl/qxpectively. 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 mass is positioned at (1leir6,:wurjia l, 5:5lk g5ux2, 0). What are the coordinates of a 4.0-kg mass which will result in the center of mass 5w g5ji5 u,ir rlkl6e,xula::of the system of three masses being located at the origin, (0, 0)?

  Use Table 7-1 to calculate the pos xwe ed,u7g)u)jp *lj,ition of the CM of a whole leg including the foot when the leg is stretched straight out. Assume the person is 1.60 m tallujee,)jwdu)*p g7 lx, .