What is the SI unit of momentumggb qr.hrmfzhhrm7 +);1o4x5it .1w m?

  When a cannon fires a cannonball, the cannox9 / arzw he,dz 0 ,r))/hny1jz6blmr7nsp.uen will recoil backward because the

  A freight car moves along a frictionless level raei2i:add:po o pk*rl 1(*ow.uilroad track at constant speed. The car is open on top. A large .ko *la1*:odpprw2(e:u odii 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 icc+7q t rw(jvj, 3+wt3wp9phzk e. What happez v 9tt j3cw3,rp7+( pkwhw+jqns to the velocity of the sled?

  A rubber ball and a lk l6zp2c:grd5d lt9( fump of putty have equal mass. They are thrown with equal speed against a wall. The ball bouncgplkdld:9r 2zc5ft 6(es 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 represent its k:zn * yf*xfkem0x*z7kinetic energy in terms of these xkxz*ym fz:ke*0 * 7fntwo quantities?

  If you pitch a baseball with twice the kinetic energy you gave itvhwj 41 o yrw o2aua6-cu()6jn in the previous pitch, tj2(-ac urww 14ohn) uv66jaoy he magnitude of its momentum is

State Newton's second law in terms of momez 9p 04eq3 jlqu96y5aba giw,zntum.

State the law of conservatx01q- /irlt(gyb mx;ig rg3x3ion of momentum.

  The area under the curve on a Force versus time (F qh+dq+ze/ h 5 :,bmesavs. t) graph represents

  Which of the following is an accur6g/eh y5rfu: uqq4 r,mate statement?

  A small car meshes with a large truck in a head-on collision. Whwpii97au-m1nu(,v/; 4 exs ;troziue ich of the followi4out /sx,nu7iw1;z9ee ;ip(ruav i-mng statements concerning the magnitude of the average collision force is correct?

  Two equal mass balls (one red and t84xqolo0h *tthe other 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 of impulse dltotxoh0*48 quring its collision with the floor?

  A Ping-Pong ball moving east at(5bxb4/f u;7 3sq0uq afrkone a speed 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 experiences the greater magnitude impulse during the collufbq;/ qub4n75 xr0s o3e(kfaision?

  Two objects collide and bounce off each other. rz kv 0t,do37rLinear momentum

  A 3.0-kg object moves to the2pe xb cy 7b7 zjkh*jg,uvh(,q)hna-5 right at 4.0 m/s. It collides head-on with a 6.0-kg object moving to the left at 2.0 m/s. Which statez ,b hnuk5 cepx-72 7a )h*jy,hq(bjvgment is correct?

  A 100-kg football lin8lcbwi5 l0 be.ebacker moving at 2.0 m/s tackles head-on an 80-kg halfback runni5 b8e.cilw bl0ng
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 ouc6 mqy30l8x 1i7 1 sy g3juiqza;2wethe following statements is ;sq71l3ogy 06i y1c u uiewam qjz28x3true about kinetic energy?

  When is kinetic energy cy3: cuyxlaf ipt:dx;o8 . u1.donserved?

  In a game of pool, the white cue ball hits the #5 ball and stops, wn9i):n iqodm ;u8)*wwn qpn2mhile the #5 ball moves away with the same velocity as th ))i iww* qo8nn q2m:n;mdnpu9e cue ball had originally. The type of collision is

  When a light beach bal1e2qf1 i+ toiyl rolling with a speed of 6.0 m/s collides with a heavy exercise ball at rest, the beach ball's seqfo+ i2 1y1tipeed after the collision will be, approximately,

  A golf ball traveling 3.0 m/s to the right collides in a hea+lyr7 m-p;yyw:fzca x,c:if8 d-on collision with a smf ya:iwyc ;8x,c :-+zl7pyrf tationary bowling ball in a friction-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 colliv mmj.qkmys b h3-)74dcet d62som1 j,des head-on elastically with an identical ball at rest. What is the speed of the initially stopped ball after the collvkm7ec) h21bm. s dtm,mjq43sj6o yd-ision?

  A very heavy object moving with speed v c0/fje z1)6zla yow8bix i f57jollides head-on with a very light object at rest. y jf /b)67l w8izij5ezxafo10 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 collf.8: e9rxfk*1cvwsn hides head-on with a very heavy object at rest, in a frictionless environment. The collision is almhr.f kne9:1f*8 wcxsv ost perfectly elastic. 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 ball o .)o ho5dk+mek6yf0kzf equal mass moving with a velocity of -2.0 m/s. What is the velocity of the yellow ball after the collk 0dzkf56moy h.ko)e +ision?

  A very heavy object moving with velocity v collides head-on wic;*dgu8x r3y6dobp) j th a very light object moving wi 8ux36jrdd)o*p;cb gyth 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, then which of mvca dfv7,je./wdqe * u/h(,xthe following x,/hq7ej udmfw(/vd. *,e vc astatements is true about kinetic energy?

  Two objects collide and stick toget5vo*savn m0e/ her. Kinetic energy

  A 3.0-kg object moves to the right a;, 20 ndzxdldft 4.0 m/s. It collides in a perfectly inelastz0l fdd,x;n2d ic 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 large object and sticks. Which o6bw(z,b 2n prubject experiences the larger magnitude of momentum ch,zwu bb(pnr62ange?

  In a game of pool, the w:w7hn-3t . x*yufocn9oac t4nhite 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 statjc7 :sh16,ejif (k ejqements is false(e,ch7sq kf1jj6i j:e?

  Which of the following is a falsea wzjd4n:w.. t tdla;* statement?

  Tightrope walkers walk with a long)gyxr/ye *g0n )b: d6p::zn sx u-fzeo flexible rod in order to

  A plane, flying horizontally, releases a bomb, which explodes c2 d-r 2a-zhr5 ),kvnitve.m sbefore hitting the ground. Neglecting air resistance, the centee m2csir--vztd5kv )r2., n ahr of mass of the bomb fragments, just after the explosion

  Two cars collide head-on on a level friction-xg8h ehxg7-*17(qbagt x d c/yfree road. The collision was completely inelastic and both cars quickly came to rest during the collision. What is true about the velocity of this system's /(dytg8g7 xg*7xec1hx bh- a qcenter of mass?

State Newton's second law for a system ofevt oq(vnsd rt,1k*ob3o4* 0.rm4rvr particles.

  What is the momentum of a n .lcx,u3r m0csy1u8wq c8g. t2000-kg truck traveling at 35 m/s?

  A 1200-kg ferryboat is moving south at 20 m/s. What is thf8opvye,pyoc1hp-q3 0; 65 )hdk,ci( yvcy lve magnitude of its momentuh c;(, vvfci lhqk6doy),-ypovyc31 8p50e pym?

  A ball of mass 0.10 wpq hh)ps0wz. h 92 bx 5s939cgtquxy/kg is dropped from a height of 12 m. Its momentum when it strikes the grounh .9 ygp/53twc99xbq qxzup0)wh s2shd is

  Two identical 1500-kg cars are moving perpendicular to each other. One moyb(:v1 x uzm0m eqj5,cves with a speed of 25 m/s due north and the other moves at 15 m/s due east. Wh1 yj xm0(,zumebq5 :vcat is the total momentum of the system?

  A handball of mass 0.10 kg, traveling horizontally at 30 m/s, strikes a .; h6zymq(qkrwall and rebounds at 24 m/s. Wr(qm 6k.zqyh;hat is the change in the momentum of the ball?

  A 0.060-kg tennis ball, initially moving at a speed of 12 m/s, is u6)x3r(qck / ff-perfstruck by a racket causing it to rebound in the opposi-qpfr6 3cekr f) /fux(te 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 pbg 9k514s qaxk z g(kt(;p8lqkond. 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 thesk5qba 9kg xq1lp(zk ;tk4 8g( pitching machine? (Assume negligible friction.)

  A 70-kg astronaut is space-walking outside the space capsule and is stationary yp9- ,3ke; ; cv a+gv,creqt45ayxbacwhen 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 away from the capsule. At what speed does the astronaut move towaryxc3, e c eb a;avr-;+k5 pvq9a4tyc,gd the capsule?

  A small object with m bj ,o ikag4;la,y:1djomentum 5.0 kgm/s approaches head-on a large object at rest. The small object bounces straight back with a momentum of magnitude 4.0 kgm/s. What is the magnitude of the large object's mol,;ajd:obg4ai jk 1y, mentum change?

  You (50-kg mass) skate on ice at 4.0 m/s to greet your friend (40-kg mass), whrech xb54r9 +mhphispiq3.t67n7 /yx o is standing still, wip rhr bqxx94in.7s 6 5+m7hp/ye3tichth open arms. As you collide, 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, straig uz9wz6pv6( xght road at a speed of 6.0 m/z6gu x w6(9zvps. It collides directly with a stopped motorcycle of mass 200 kg. What is the total momentum after the collision?

  A 1000-kg car traveling at 25 m/s runs into th/ttait/ xl+nw0.cv ozyu4,s * e rear of a stopped car that has a mass of 1500 kg and they stick together. What is the speed of the carsn/t,40osyw alzuit cx.v+t/ * after the collision?

  A railroad freight car, mass 15,000 kg, is allowed to coast along a levuc-a qp:( igz*el track at a speed of 2.0 m/s. It collides and couples with a 50,000-kg second cia(:*p -zcuqg ar, 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 horizontal td,tu7l5i;lfn zh c+(urack 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 md7+icl( luh;ftu n,5 zoving after this happens?

  A 60-kg person walks on a 100-kg log at the rate of 0.8s4c r)hm e5xi p ;o4nngu+;r+l0 m/s (with respect to the log). With what speecnn ++;orielm5 urp g ;4x)hs4d does the log move, with respect to the shore?

  A 4.0-N force acts for 3.0 s on an ob.tll co o:;xx4ject. The force suddenly increases to 15 N and actsoxl:o cx.4;tl for one more 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 object. What is the obkixsp-jyfs j3 ))6v 5yt+ i*vzject's cha)jv5x)6+sif k y*3j-tvyzi spnge of velocity?

  A 2000-kg car, traveling to the right at 30 mngyk1 8po.le7quji4hx8 i1gq ; d n9o9/s, collides with a brick wall and comes to rest in 0.20 s. What is the average force the car exerts on th l4hn1.o99e g1ogkqnx;q8ji u8di7p ye wall?

  A 2.0-kg softball is pitched to you at 20 m/s. You hitiigh+9d,lby):.q jgxx 80e mm the ball back along the same path, and at the same speed. If the bat was in contact with the bhx mi+xb lmy) 9i 0.,gq:e8gdjall 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 riwp0nw5d2m ; j*cxg-j* muh)2r r (ngumght before and right after hitting the table top are rhxcwn) 2umm wj*(p d2gugjmr*-;0 n 55.0 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 506n f5s* ;uyyyj.0-gram bullets, with a muzzle velocity of 750 m/s, at the ratey6 ny;f*jy5 us of 300 rounds per minute. What is the average force exerted on the machine gun mount?

  A fire hose is turned on the door of a burning -j5f pwr1l5 k9 wp0e+v)us gnubuilding in order 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 the wa5 u rje51+ l) kpfpvnw9s-g0uwter doesn't bounce back?

  Water runs out of a horizontal drainpipe at the rate t8m8t 71vtql gof 120 kg per minute. It falls 3.20 m to the ground. Assuming the water doesn't splash up, what average force does it exert on m q1gtvt tl878the ground?

  A toy rocket, of mas6bf4tj7 *:l -vx f *c7bwqcgnrs 0.12 kg, achieves a velocity of 40 m/s after 3.0 s, when fired straight up. What average thrust force d **xcbc-:t wgnflfbv6 qr74j7oes the rocket engine exert?

  Two astronauts, of masses 60 kg and 80 kg, ar, cnde+ g-yv1fi9lby 7e initially at rest in outer space. They push each other apart. W,f7g1 +9de yynliv-cbhat 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/sjp)p g*v9(6s 6jgepw v. 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 collj *ge )pvj9spw(6p6vgision?

  A 0.10-kg object with a velocirayp,o58d2 u hty of 0.20 m/s in the +x direction makes a head-on elastic collision with a 0.15 kg objecoraud 8p 25h,yt 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 int 9a*jk j02ndwvz w:v:jo a 1.00-kg block at rest. The bullet emerges (the bullet :av2v wjn0j9d:kjz* wdoes 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,* zy/i2)ycfuy/ pl7crh9i s +d at rest, is struck head-on by an alpha-particle (which consists of 2 protons and 2 neutrons) moving at speed v. If the collision i9flp/u/ dy2 y7izchr yis*)+ cs 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 alu /4,;bbix mgw;rlx2gsr5 +in f3n( head-on with a stationary ball of mass 100 g. The collision is elastic. What is the speed of each ball immediately after the colli;( u i rslbmx5g 2x,lrnn+a4bwf/3gi;sion?

A ball of mass 400 g moving toward the east with a speed of 3.70 m/s cozc3;m zw+xv(7by7g 3esog6 qwetq; 1gllides he6c3g;g t y3gm sz(z; 717qvowqbxe+we ad-on 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-on wiz n g(cfn(h5wa2r )qo*0,gvnlth a 3.0 kg mass at rest. If the collision is perfectly inelastic, what is the speed of the masses aftl20n*(hc no 5,r nw(ggq azf)ver the collision?

  A 2.0-kg mass moving to the easmkpw1om ;9xi xep)r78; 1r r0ldp3 zdet at a speed of 4.0 m/s collides head-on in a perfectly inelastic collision with a 7l8e3 9ippr1odw pr e1;r0dmk);xxmzstationary 2.0-kg mass. How much kinetic energy is lost during this collision?

  A car of mass m, traveling with a velocity v, strikes a parked station wagon, wh+ 1shsymwx9a0o's mass is 2m. The bumpers lock t1swshay+ x0m9ogether in this head-on inelastic collision. What fraction of the initial kinetic energy is lost in this collision?

A 15-g bullet traveling 213 m/s in a vertical m pq6a,.j5o 1clak2c edirection buries itself in a 2.4-kg block of1lq5c jcpa,2.mk6 oea wood a rest directly above it. As a result, the bullet/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 at 90.0 km/h east collides with a 3000-kg car trn8m l d/;y gz( wwz joeq 3o3omrq)lv)4*/jp6vaveling 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 aft n;o eyw(zog)m*36 /v /3j)zmv8lqj4do wrplqer collision?

  A 1500-kg car traveling at 90.0 km/h east colq8gcq30it* rp lides 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 itpirqc3 g 0*q8s the direction of motion of the cars after collision?

  Two objects move on a level frictionless surface. Object A moves east zh: rgt043dppwith a momentum of 24 kgm/s.r0zpp3t4g :d h 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 mpb4p acjvgj ,nd+0ah (q17x3North with a velocity of 4.0 m/s. It explodes into three fragments: a 5.0-kg fragment moving west with a speed of 8axhj vj c 74n1(a+0mbg3,pq dp.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. 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 fdz2dpjuvscw qo*p6zd mm)44, 3n ;p*x = + 21.0 m. Where is the center of masd w )p *m , pmdcs42ju64o*pnzzq3dfv;s on the x-axis?

  The center of mass of a two-particle system is at the origingcu ,mb/o3oe: xjp44 o. One particle is located at (3.0 m, 0) and has a mass of 2.0 kg:p,xc/o b3ju 4ogm4o e. What is the location of the second mass of 3.0 kg?

  Three masses are positioned as follows: 2.0 kg at (0, 0), 2.0 kmocj4 /ged+ )qg at (2.0, 0), and 4.0 kg at (2.0, 1.0). Determine the coordinate+/ejgd oc4mq)s of the center of mass.

  Three masses, 1.0 kg, 2.0 kg, and 3.0 kg, are located at (0tw9,/w lrm+9 +fhys3cffxqw+ , 0), (1.0 m, 1.0 m), and (2h/ mt+ wr x9,fw+ff+clw3sy9q.0 m, -2.0 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 mass is positioned at (12ke*ban k4) bn6, 0). What are the coordinates of a 4.0-kg mass which will rnkba nk*e4b6)esult 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 poswj8azpg)vvy vmpt u02 l60;g0ition of the CM of a whole leg including the foot when the leg is stretched stray g;jg8ap)2lu6vv 0pz0w0tm vight out. Assume the person is 1.60 m tall.