What is the SI unit of fmi0a oiw,) 6ht0s9slmomentum?

  When a cannon fires a cannonball, the cannon willydy;izl2c5: rgot+e sta86k: recoil backward because the

  A freight car moves along a frictionless level railroad track at9ot 6 tn3ap*0wnft ev9 constant speed. The car is open on top. A large load of coal is suddenly dumped int0v nefowpat t 3t996*no the car. What happens to the velocity of the car?

  A child falls sideways off a sled while sledding on frictionless ice. What h22fp sc2cc th,aj2w ;:nh6n drg;n0r happens t2 gpnjn fc2 r, t2 h6;:ar2hc;sc0hnwdo the velocity of the sled?

  A rubber ball and a lump of putty have equal mas 53r.mncx9nok s. 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 experiences the greater momentuo.r 3 mnxk9nc5m change?

  A sailboat of mass m is moving with a momentum p. How would you s w/x7m)dsijn 8me.,qrepresent its kinetic energy in terms oeswdm q8)7 xmj,i. n/sf these two quantities?

  If you pitch a baseball with twice the kinetic m5 ;tqk9h; cidenergy you gave it in the previous pitch, the magnitude of i;; tdqmkch95its momentum is

State Newton's second law in terms of momentqeh( u*vjy(nmx/)sg oa;5vs 7um.

State the law of conser4sr4v tl 2jmj7vation of momentum.

  The area under the curve on a Forceoc kj;p515gi udovif90 kd:q50ucm0w versus time (F vs. t) graph represents

  Which of the following *q,s1lk hcfu)-hse1 uis an accurate statement?

  A small car meshes with a large truck in a head-on collision. Whi2t rk48jp95vna6jlfh ch of the following statements concerning the magnitude of the average collision289jvp6 hr5kfnaj tl 4 force is correct?

  Two equal mass balls (one red a03t1np1 uj)xbe)wa k0aw ge/ snd the other blue) are dropped from the same heighpsgb0aetk w/1)nwx1jau0 e3 )t, 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 floor?

  A Ping-Pong ball moving east at a speed of 4 d6*ga 2ay*jomh 1n7kom/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 greath61j2 *madogyk*na7oer magnitude impulse during the collision?

  Two objects collide and bounce off each otheh 2d. m)qmx8wmr. Linear momentum

  A 3.0-kg object moves vme g ijxpici63.6d )dg78jm6auna42 to the right at 4.0 m/s. It collides head-on with a 6.0-kg obma.62ged 7j njm givi6uci3p6d a)x 84ject 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 an 80-kg hal+zydty7f3t-(fc/p v afback r3fa d(-ftpv 7+ y/tczyunning
3.1 m/s. Neglecting the effects due to digging in of cleats,

  In an elastic collision, if the momentum is conser,z9sp d pw,i9ived, then which of the following statementpzspi, ,wdi9 9s is true about kinetic energy?

  When is kinetic enerl;65du6,adc f12 yq-lrse ha qgy conserved?

  In a game of pool, the white ze2p3.jl t l br2lw/6dcue ball hits the #5 ball and stops, while the #5 ball moves away wit z 2l6dbw3/l.et2r pjlh the same 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 6r*aa1boxl / zwith a heavy exercise ball at rest, the beach ball's speed after the collision will be, app6lax/1br *oazroximately,

  A golf ball traveling 3.0 m/s to the right collides in a head-on collision w 7tek14jf(qhyith a stationary bowling ball in7 (1hf ek4jqyt 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 collides head-on elasticagj/ h x:8lgk2re7 tqa4lly with an identical ball at rest. What is the speed of the initially stopped bak ja:q7gheglr/t28x4 ll after the collision?

  A very heavy object moving with speed v collides head-on with a very li z )4;euo9lbgqght object at rest. The collision is elastic, and there is no friction. T; qle9zo 4g)ubhe 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-oueee c2w x:t0(n with a very heavy object at rest, in a frictionless environment. The collision is almost perfectly elastic. The speed of:tcewee 2u(x 0 the heavy object after the collision is

  A red ball with a velu3//lhw5llm nw ;uj;yocity of +3.0 m/s collides head-on with a yellow ball of equal mass moving with a velocity of -2.0 m/s. What is the velocity of the yellow ball afte3l/;w/llu jyhm5;wn ur the collision?

  A very heavy object moving with velocity v collides head-on with a v 4uce 5,u2owrqs14m xh4r9uz bery light object moving with velocity -v. The collision is elastic, and there is no friction. The heavy r1w9, 4hzq 52s4cx4rmouu eb uobject barely slows down. What is the speed of the light object after the collision?

  In an inelastic collision, if thj5-w gygp k.n2e momentum is conserved, then which of the following statements is true about kinetic enyg2 -kjnpg5 .wergy?

  Two objects collide and stick toge6-c*yedkb zg6 ther. Kinetic energy

  A 3.0-kg object moves to the right at 4.0 m/s. It collides in a perfectly inj)vt7 oel34mv* a 5szkelastic cv )t s354j7mlv ezoa*kollision 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.spgv ;gw* gmiyx5 u-4j *a.x 4frw)z5d Which object experiences *g5d) j5gwsw4xfm.xg z-rv;ua*4py ithe larger magnitude of momentum change?

  In a game of pool, the white cue ball hits theb h.9xez8fb mnvc .-n4 #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 a uz:cey;chgi6x/.3 yx nd m. Which of the following statements is false?yi3e gx:uzh.c/ cx6;y

  Which of the following is a false statem 9*elrgdmnpg *r4*w )xent?

  Tightrope walkers walk with a long flexible rod : jadcg*qdo+hlw r82. in order to

  A plane, flying horizontally, releases a bomb, whik/ :a;iiy*nzvi0b9 gif2ep:w ch explodes before hitting theb: i/ nvki 0e9*;i gyizpfa2w: ground. Neglecting air resistance, the center of mass of the bomb fragments, just after the explosion

  Two cars collide head-on on a level friction-free road. The collision w;1r 4,cunj5j cviifl3 as completely in;ic4 3,njv15fru i jlcelastic and both 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 system of pn-8 d4powc4 rcarticles.

  What is the momentum of a 2000-kg truck traveling at 3igt s6jch:nb5k-v*:m1 xeye 35 m/s?

  A 1200-kg ferryboat is moving south at 20 m/s.cgd,q ,ne)qm+0)rcv :gqz+gbd6u4og What is the magnitude of its momentum,:qngq q0+rz )cvgg,dge 4om +u)bd6c?

  A ball of mass 0.10 kg is dropped from a height of 12 m. Ith wu9+6vow7l9r0e+k 5 s sxhqks momentum when it strikes t9vrkx w+e 7w 6h0h9sk osl+q5uhe ground is

  Two identical 1500-kg cars are moving perpendicular toax-t,lba5:9u/k h mif each other. One moves with a speed of 25 m/s due north and the other moves at 15 m/s due east. What is thm/a:utfa- il5b, xhk9e total momentum of the system?

  A handball of mass 0.10 kg, trav84 yxs3b rbw.qz7 k(/vwwo5wb eling horizontally at 30 m/s, strikes a wall and rebounds at 24 m/s. What is the change in the momentum of tb/rbw.y7oxv 34wwz(qs 85k wbhe ball?

  A 0.060-kg tennis ball, initially moving at a speed of 12 :/uum7 .go oobhc n:5u2 wh.glm/s, is struck by a racket causing wu.o o:27ouh.lb:ng c 5gm u/hit 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 (exc1a6-gt uoem1 oluding 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 t16g -1mtaeo ouhe recoil speed of the pitching machine? (Assume negligible friction.)

  A 70-kg astronaut is space-walking outsid v)4d3d+fqd*1 abpmta, qe ex7e the space capsule and is stationary 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 away from the c+pf *7,b1maeetq)d vd43a xdqapsule. At what speed does the astronaut move toward the capsule?

  A small object with momentum 5.0 kgm/s approaches head-oqx fvawk59qft44o u7zn4xbr6(nx*3 h n 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 7xr( a 4o6wxf4 nn3quzhktbv9x5*f q4 momentum change?

  You (50-kg mass) skate on ice at 4.0 m/s to greet your friend (40-kgny(h vv c5f5+p mass), who is standing still, with open arms. As you collide, while holding 5cnvvh(+yf p5 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:xsyv( j)- mtd road at a speed of 6.0 m/s. It collides directly with a stopped motorcycle of mass 200 kg. What is the ( xjm:vyt s)d-total momentum after the collision?

  A 1000-kg car traveling dq/sccmac:0 i)86 uok8x b)omat 25 m/s runs into the rear of a stopped car that has a mass of 1500 kg and they stick together. What is the speedk)q/mx b80o8)u:ic sdaom 6c c of the cars after the collision?

  A railroad freight car, mass 15,000 kg, is allowed te f 90vcd0,zymo coast along a level track at a speed of 2.0 m/s. It collides and couples with a 50,000-kg ,0yv0defz 9 cmsecond 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 negligibvwt(.)* zdjdpw 9oi+0lh/yaole friction on a horizontal 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 wiljtypoa9i( * ohzv+ )dlw./ wd0l the car be moving after this happens?

  A 60-kg person walks on a 100-kg log at the t:v cv pu0b;r6rate of 0.80 m/s (with respect to the log). Wu6vp 0b r;c:tvith what speed does the log move, with respect to the shore?

  A 4.0-N force acts for 3.0 s on an object,v ktf2 u3vhh;e25glmw +dy;p. The force suddenly increases to 15 N and acts for one more second. What impulse was imparted by these forces to the w2vfutkyevg h25m;,p hd3+;l object?

  A constant 9.0-N net force acts for 2.0 s on a 6.0-kg object. What is the objeng4tj,ds0 7z0 -sex7uff8 pzact's change of -e zx4d8ja0stf 70 pfzsnu 7g,velocity?

  A 2000-kg car, travelinknh3 o64,tcv gi/re l)g to the right at 30 m/s, collides with a brick wall and comes to resthvi4 k/e)3,rng6o lt c in 0.20 s. What is the average force the car exerts on the wall?

  A 2.0-kg softball is pitched to you at 20 m/s.s + e/zy0emkz1zki;lke 544ap You hit the ball back along the same path, and at the same speed. If the bat was in contact with the ball f0mpe 4l1+iaz/ ky;e kk4e szz5or 0.10 s, what is the magnitude of the average force the bat exerted?

  A 0.10-kg ball is dropped onto a tu /qjbc.owf+n, gap6*xl i* 9i4slp)i able top. The speeds of the ball 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 magjpisi4upqfb.a w *l9)i lx6 c /g+,on*nitude 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 muz/4rfff v b* kn21j( fg1tos7(a- xmrvszle velocity of 750 m/s, at the rate of 300 rounds per minute. What ivn/j ta2rf f mgfxo(1s4k*r(f vs7b1-s the average force exerted on the machine gun mount?

  A fire hose is turned on the door of a but6whhgv6*96zyumr 2 x rning building 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 velvgth 66*u6w myhx29 zrocity of the stream needed, assuming the water doesn't bounce back?

  Water runs out of a horizontal drainpipe at jjkw; okpvno )0ih/,-cf hewf9g):/tthe rate of 120 kg per minute. It falls 3.20 m to the ground. Assuming the water doesn't splash upt o,v)n h)foiwhpk9gw:c0 j /-;/fjke, what average force does it exert on the ground?

  A toy rocket, of mass 0.12 kg, 7myz6y 6q8r4goc(ihcachieves a velocity of 40 m/s after 3.0 s, when fired straight g7 8hc6(q iymo czyr46up. What average thrust force does the rocket engine exert?

  Two astronauts, of masses 60 kg and 80 kg, are initially at ryxps15b3* ; m -cjmdf h nn1;my1jwij3est in outer space. They push each other aparthjip1x b; *cjs1y-133f n5m;mmnwy jd. What 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/s. It cs.1/, cc9, xzyv4c e f)brqzxeollides in a perfectly elastic collision with a sfzc e ,b/q.,4 vcz )y1erx9cx6.0-kg object moving to the left at 1.0 m/s. What is the total kinetic energy after the collision?

  A 0.10-kg object with a velocity of 0.20 m)gt+ koqgv-d7dw .k( r( oqd/v/s in the +x direction makes a head-on elastic collision with a 0.15 kg object initially at rest. What is thk ogd 7t.(vd-rqvo) kd w+gq/(e final velocity of the 0.10-kg object after collision?

  A 10.0-g bullet moving at 300 m/s is fired into a q9(/umh 7zrf oiu x;.i1.00-kg block at rest. The bullet emergi r/.f(uomux;hq9 iz 7es (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 collision?

  A proton, of mass m, at rest, is struck heay8 ,3-vbhe2kk volab0t 1h+twd-on by an alpha-particle (which 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 equals the proton's mass.k+83h,o lve1 kh2-b0tya vbtw)

  A 50-gram ball moving +10 m/s collides head-on witj,sq:9 mzu*7t , djxhth a stationary ball of mass 100 g. The collision is,, q tz7*dtjxsuh9:mj elastic. What is the speed of each ball immediately after the collision?

A ball of mass 400 g moving toward thc/,a/oga,ee /jpk*bj e east with a speed of 3.70 m/s collides head-on with a 200 g ball sitting at rk/o/ge /j*,ebcpa,j aest. 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 collidec2vp/ otypev7 7/un3 q1il3u fs head-on with a 3.0 kg mass at rest. If the collision is perfectly inelastic, what is the speed of the masses afterf oq/pl3unp23ie cy7vt1uv7 / the collision?

  A 2.0-kg mass moving to the east at a speed of 4.0 m/s collides head-on z6/m+e +wsxdm in a perfectly inelastic collision with a stationary 2.0-kg mass. How much kinetic energy is lost during this ++w6m /zmsdxecollision?

  A car of mass m, traveling with a velocity v, strikes a parked station 2res rrkw:p,8wagon, who's mass is 2m. The bumpers lock together in this head-on inelastic collision. What fraction of the initial kinetic energy r:kr8sr ,e2wpis lost in this collision?

A 15-g bullet traveling 218 da0t-r7+nsct b zyk93 m/s in a vertical direction buries itself in a 2.4-kg block of wood a rest directly above iband r8tt+9 7kcs -zy0t. 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.;t0zb9lge/ eb 0 km/h east collides with a 3000-kg car traveling at 60.0 km/h south. The two ;tebl gb/ze90cars 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 km/gg4n ss3 1/uc .dlc0cgh east collides with a 3000-kg car traveling at 60.0 km/h south. The two cars stick together after the collision. (See Fig. 7-1dug1l. gn 40ss/3cgcc.) What is the direction of motion of the cars after collision?

  Two objects move on a level frictionless surface. Object A moves eastpv j72fvcs0 5n(k1 nryho hh:* with a momentum of 24 kgm/s. Object B moves north with momentum 10 kgm/s. They make a perfectly inelastic collisio 7 5nhv0hj s*rp2vcf:k1h(nyon. 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 of ;4 /pxh/b qeau4.0 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 kg4;uxbe/ pa qh/. 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 sitsw/.x: w:8p ngph.mf od.sn5i:wddnm2 at x = + 21.0 m. Where is the cen2d o8:dmp wdmg.s/wx.5f:i.w nnn:phter of mass on the x-axis?

  The center of mass of a two-partit-iyy8svrgvf/ h g27* cle 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 location of the second mass of 3.rf8 vsh7t- igyv2 g/y*0 kg?

  Three masses are positione ksxw7.byfxv:, gu(p8d as follows: 2.0 kg at (0, 0), 2.0 kg at (2.0, 0), and 4.0 sg( xx,yuw87vfbp:.k kg 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,j9ah 6 lehpabd/v n+:4 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 vhl4+h6n ajda :be9/pof mass of the system?

  A 3.0-kg mass is positioned at (0, 8.0), and a 1.0-kg mass is positiong o i;rjzso5+lv:(g(p9z5fqz b ;pkq ,ed at (12, 0). What are the coordinateb o:qsi(p gk5zv +;p5fq; 9jz(,gr lozs of a 4.0-kg mass which will result in the center of mass of the system of three masses being located at the origin, (0, 0)?

  Use Table 7-1 to calcula-/j hb:6t(3j h7 n6uveuvvpg tte the position of the CM of a whole leg including the foot when the leg is stretched straight out. n/uh76gvut 6h-tbv 3vpjje(:Assume the person is 1.60 m tall.