What is the SI unit of momentu( -x awd) 3oxos3ervs9t;rl m5m?

  When a cannon fires a cannonball, the cannon will rhclgqh6rsq9l7ri+ fy958xg 5 ecoil backward because the

  A freight car moves along a frictionless level raiwuc3pwg .789cm jdt z;z c+qyr k5*ne5lroad track at constant speed. The car is open on top. A large load of coal is suddenly dumped into the car. What happensd*59jc;3we czckgwr n7tz8u.q p5 my+ to the velocity of the car?

  A child falls sideways off a sled while sledding on frictionless ice. xpd3:f:; gtm3r+t l yu What happens t;d 3 f pglur3tyxm:+:to the velocity of the sled?

  A rubber ball and a lump of putty have ve2 oe -ro 9m9xjo;ywb2+dhy7equal 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. -b+r;e2 v9yo wejox97ymh2 odWhich objects experiences the greater momentum change?

  A sailboat of mass m is moving with a momentum p. How would youlj4hvfnm2;h:p6h2icszl+ l6 represent its kinetic energy in terms of these twl+ 2l:42nh;s66phf czvjhil mo quantities?

  If you pitch a baseball with twice the xbpz3 :-mpgb*1b t 9vykinetic energy you gave it in the previous pitch xp:1by9zv 3-btm *pbg, the magnitude of its momentum is

State Newton's second law in terms of momentum.3v+fw kk c7 unazu1()m

State the law of conrzvde x xl*v5 9:zw.bk,pj 0r8servation of momentum.

  The area under the curve on uxd:m9o s*m35lql, aqa Force versus time (F vs. t) graph represents

  Which of the following is an accur3 q;: uo1ffuvlcvp3zj*:n3 ztate statement?

  A small car meshes with a large truck in a head-on collision. Which of th rw;dt5/amspdb;2j r )tbe4wy 7x (hl.e following statements concerning the magnitude r;)lrjp ta2sx.b 5b/d 4hy ;tdew w7(mof the average collision force is correct?

  Two equal mass balls (one red and the other blue) are -emhvk8z suox ;r: ;t:; qjzq9dropped from the same height, and rebound off the floor. The red ball rebounds to a higher p;vmz-q h8 :s;9qjor; euzkxt: osition. Which ball is subjected to the greater magnitude of impulse during its collision with the floor?

  A Ping-Pong ball moving east at a speedf9sc2w yx71yq 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 imq xswfy7cy192pulse during the collision?

  Two objects collide and bounce off ea;njlxnoi kitro0z(23nw-o- 0ch other. Linear momentum

  A 3.0-kg object moves to thefm*ha3azs7+h.cf g2z;. r 4oo7pym ce 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 statch2faf7.a ;m e+so.g34zop*h7 mz rycement is correct?

  A 100-kg football li aw.8ka w-r pt4m:b/m:2lo nginebacker moving at 2.0 m/s tackles head-on an 80-kg halfback rkat :lr b-imwopm8g:wn2/ a4. unning
3.1 m/s. Neglecting the effects due to digging in of cleats,

  In an elastic collision, if the rjetgsjp/v2 ruq2 64, momentum is conserved, then which of the following statements is trus2r /rg,qpj4ut6j v2e e about kinetic energy?

  When is kinetic energy conserve,9xpw jzu 9x7ehix1l- 2hw x:ed?

  In a game of pool, the wh2 b8.y1:cxjc 5p;wj ir/h pnqtite cue ball hits the #5 ball and stops, while the #5 ball moves away with the same velocity as the cue qjbnctpx5hi rwp8 y 2/c:.;j1ball had originally. The type of collision is

  When a light beach ball rolling with a speed of 6.0 m/s collides0e ) )6nvumdni with a heavy exercise ball at rest, the beach ball's sp nm6ndve))i 0ueed after the collision will be, approximately,

  A golf ball traveling 3.0 m/s to the right collides in a head-onkaod v 7hd,sixa qh*ct6* bxlb++:4 -p collision with a stationary bowling ball in a friction-free environment. If the collision is almost perfectly elastic, the speed of db ok -+b* vxts,:c+xqa i6*dhla47hpthe golf ball immediately after the collision is

  A rubber ball with a speed of 5.0 m/s collides head-on elas4 74m,tgtl x8o vumupf;5qnh (tically with an identical ball at rest. What is the speed of the initially stopped ball after t4tf48uoq lg mx,h(vmt 5;un7phe collision?

  A very heavy object moving with speed v collides head-on with a vb. qa3kp0. pmlery light object at rest. k.lpq pa3m0b. 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 collides head-ono9yq 4q19qwko4zu;ditw3 nf7 with a very heavy object at rest, in a fricti ;o9t1uzq4 ikqnfw 39q7w dyo4onless environment. The collision is almost perfectly elastic. The speed of the heavy object after the collision is

  A red ball with a velocity of 21zur 8fpeluv. w4.aq)vzl( f +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 the2fu p.ql 1 e)4al (v8uwzzvrf. velocity of the yellow ball after the collision?

  A very heavy object moving with velocity v collides hem*; wgl5g aclwk5y5l9 ad-on with a very light object moving wgwyac *59 llm5g5lw;k ith 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 .fi n ru1lf*g 4j++nzcq;n+hg the following statements is true about kinetic + n;h*c+f1i4 jlunf+ n g.rgzqenergy?

  Two objects collide and stick+(gt 5p*p u,ha.lxtkn together. Kinetic energy

  A 3.0-kg object moves to the right at 4.0 m/s. It collid n9qrr(t)h +nres in a perfectly inelastic r (rh)+9 tqrnncollision 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+ler-tugmy1 .(c urm,0if jb 8 and sticks. Which object experiences the larger magnituujbmy-, r0m c 1(g8tul+.efirde of momentum change?

  In a game of pool, the white cue ball hits the #9 ball and is deflected ab-mkd/dbis 86 -9 nzkmqk(yk4t 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. 5hikl ,oj*feny,0q p4 Which of the following statements is falsly0f pko 54ij ,h,qen*e?

  Which of the following is a1j:z xzy4dbyqsn i reh8.,p66 false statement?

  Tightrope walkers walk with a lj6db19 zwrwrzxo by; f)ls :/.ong flexible rod in order to

  A plane, flying horizontally, releases a bomb, which explodes before hittingj )f jm:7ekazwtq .-zhez(6c,ph +:mn the ground. Neglecting air resime6pqw +c zn) , k::zh.h-tzjfej(7mastance, the center of mass of the bomb fragments, just after the explosion

  Two cars collide head-on on a level friction-free road.9 ir5et3.mx dlw*i5d numo6n3 The collision was completely inelastic and both cars quxtm o*dniwdu93 3 5.r5im6lneickly 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 h8va)satsw .. of particles.

  What is the momentum of a 2000-kg truck traveling at 3o0n0 vs r5k l1(wwrek+5 m/s?

  A 1200-kg ferryboat is mov yka kb0m)f*4a.q y.going south at 20 m/s. What is the magnitude of its moment.q0kybyo a *fa)g4m.k um?

  A ball of mass 0.10 kg is dropped from a height of 12 m. Its momentum when it ) hazp4s pkw5:vki2 fr6l x1i7s6rxa:l )sf7v15p khpz i4wi k2trikes the ground is

  Two identical 1500-kg cars are moving perpendicular to each otherb1smag4t1g 8 z. One moves with a speed of 25 m/s due north and the other moves 4zb18a sg1mt gat 15 m/s due east. What is the total momentum of the system?

  A handball of mass 0.10 fjp( f8w j*eq.3a fxv-kg, traveling horizontally at 30 m/s, strikes a wall and reboundsjwq 3.j xp*a(-ffve8 f at 24 m/s. What 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 struck byow8b)prc 8+3;o*v pcvng;yq6 7 l hkcj a racket causing it k*vgcnh)6yoppw+q jb83or; 78 v c; clto 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 th hg eyh :gt2:1p990slty. lgtve 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 recoil speed of the pitching machine? (Assume negll .1ev tth9sytg90pg 2:h:gyligible friction.)

  A 70-kg astronaut is space-walking outside the space c7thg-ve9 f(n v.kvtd5apsule 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 capsule. At what speed does the astronaut move toward thh7v5n gk (etv -9fdv.te capsule?

  A small object with momentum 5.0 kgm/s approaches head-on a la+ce:vkk1 r 3zs kfhvv79gtok/-mce(6rge object at rest. The small object bounces straight back with a momentum of magnitude 4.0 kgm/s. What is th6tz+ 9sg:chkvv-cvokkm( k7 ere/ f13e magnitude of the large object's momentum change?

  You (50-kg mass) skate on ice at 4.0 mpa6awpsp rdon3s /gllo0 9 043/s to greet your friend (40-kg mass), who is standing still, with open arms. As you collide, while holding each other, with what speed doa3lw0n/ado 9ps4l3pg 6so 0p r you both move off together?

  A car of mass 1000 kg mov,rc56 mf .fbu(a(x 0 wan:akpues to the right along a level, straight road at a speed of 6.0 m/s. It collides directly with a stopped motorcycle of mass 200 kg. What is the totalapkw b ,( anfu0.(mrfa:5xu6c momentum after the collision?

  A 1000-kg car traveling at 25 m/s runs into thujdch *6ub4d-o9d, p 3hhydi/e rear of a stopped car that has a mass 49u upo dh3j*/6hcihby d dd,-of 1500 kg and they stick together. What is the speed of the cars after the collision?

  A railroad freight car, mass 15,000 kg, is allowed to coast along a 6xbn 6egnv,s -level track at 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 t 6en-xgsv, n6bwo cars after coupling?

  A railroad car, of mass 200 kg, rolls with negligible friction on a horiz g ,;oqcwnwy3/1(zm9wzkm, ue ontal track with a speed of 10 m/s. A 70-kg stunt man drops straight o,qezmm ucwy/n9w ,( 13g kwz;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/;x6y8i6n p grbs (with respect to the log). With what speed does thi6xnbrpg6 8; ye log move, with respect to the shore?

  A 4.0-N force acts for 3.0 s on an object. The force suddenzxcr qmo7r6pi,+e f+(5z( vnjly increases to 15 N and acts for one moo qc+m(7xjr,f5i6( ne vz+zpr re 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 iszop: e t. :ppaef59if) the object's chaf.e9 5fo:p)ep :apitznge of velocity?

  A 2000-kg car, traveling to the right at 30 m td5d(los +isbd/7p7mafs9 r a 2jsc/2/s, collides with a brick wall and comes to rest in 0.20 s. What is the average force the car exerts on the wall?l7o cs s/ as7i52/jrsd(tad2dm+f9bp

  A 2.0-kg softball is pitched to you at 20 m/s. You hit the ball back along thle)ffx o8g ;j8:u)bt(qu zl r4e same path, and at the same speed. If the bat was in contact with the ball fu8q8j flx);b)urog( 4:lfe zt or 0.10 s, what is the magnitude of the average force the bat exerted?

  A 0.10-kg ball is dropped onto a tak7e 7s adkapp 8oic /l13o7pu)ble 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 magnitude of the av/p7po7dlicuk )p87 e3 a1sako erage force exerted on the ball by the table top?

  A machine gun, of mass 35.0 kg, fires 50.0-gram bullets, with a j +/dfk8py:u q-jrsx1 muzzle velocity of 750 m/s, at the rate of 300 rounds per minute. What is the average force exerted of x8/d1 -ryj:us+p kjqn the machine gun mount?

  A fire hose is turned on the door of a burnihl 6.v1a mtvf0h8yd +vng building in order to knock the door down. This r0fdt1+68 . hyvlvv amhequires 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 horizonka+qe;4.nu-rthif.a d (z a/ msit-x/ tal drainpipe at 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 exert on dteam/- i. (qn/ tafr.-kuih +z4xs;athe ground?

  A toy rocket, of mass fe, /zrntmiko+ 2 0m xxt)r.j70.12 kg, achieves a velocity of 40 m/s after 3.0 s, when fired straight /ri7 tjmf+0x2t) zek. nmrox,up. What average thrust force does the rocket engine exert?

  Two astronauts, of masses 60 kg and 80 kg, are initially at rest in odb4 k k 1,i ztbntcv:*2xw4co2uter space. They push each otctb n,*42wzbk4d2 vo:tkcxi 1her apart. What is their separation after the lighter astronaut has moved 12 m?

  A 3.0-kg object moves to the qb :dxoylv+ di 7b63q*.pj0ak right with a speed of 2.0 m/s. It collides in a perfectly elastic coll36ydv:pkd0 xibaj* .7q ol+bq ision with a 6.0-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 ad8n6 c:sii-phxg; wo 9/n 0brx velocity of 0.20 m/s in the +x direction makes a head-on elastic collision with a 0.15 kg object initially at rest. What is the final velocity of the 0.10 npgdh 8cni i0/s-;:x6 9xrwbo-kg object after collision?

  A 10.0-g bullet moving at 30m4g0oq:f5hx az )ew -i0 m/s is fired into a 1.00-kg block at rest. The bullet emerges (the bullet does nefg4ihz0a): mx woq- 5ot 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, ii+5qs.+ ghopks struck head-on by an alpha-particle (which consists of 2 protons and 2 neutrons) moving at speed v. If the collision is completely elastic, whahgq+.i k+5ospt 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 sta+vtcq wk9:+ p 4zoq3tmtionary ball of mass 10qtmzp4+9o3 c :w+qkvt 0 g. The collision is elastic. What is the speed of each ball immediately after the collision?

A ball of mass 400 g moving toward the east with a speed 7ikxyf14 of:xpko*m 0i8hcx 6of 3.70 m/s collides head-on with a 200 g ball sitting at rest. The collision is perfectly elastic. mokcfi1 :xpfkx67 x8yo *i0h4
(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 wi 5 aeq:n+ap6c97dtgmu6ehb,ath a 3.0 kg mass at rest. If the collision is perfectl ue ap6 a7,6 daegc5+:mbq9htny inelastic, what is the speed of the masses after the collision?

  A 2.0-kg mass moving to the east at ae1z:k 2iy ph3b speed of 4.0 m/s collides head-on in a perfectly inelastic k 3y12ebh:pz icollision 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, strikes a parked station wag-eqd im5dfa)4-ay w7g on, who's mass is 2m. The bumpers lock together in this head-on inelastic collision. What fraction of the inia5ddq 4y-mf we-)gi7atial kinetic energy is lost in this collision?

A 15-g bullet traveling 213 m/s in a vertical direction buries itself in a 2dg)s53bwg;v h ;e5g wp.4-kg block of wood a rest directly above it. As a r5 vdpgh5 g)wb3;ge ;swesult, 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 wemm -4da, 18 qqyvq*krith a 3000-kg car traveling at 60.0 km/h south. The two cars stick together after the collision. (See Fig. 7-1.) Wh1mqa-48qd re*mq,y kv at is the speed of the cars after collision?

  A 1500-kg car traveling at 90.0 km/h east collidesg o 6ygu,siw pf1-/u*t 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 go1upw*gst, /6yi - ufdirection of motion of the cars after collision?

  Two objects move on a level frictionless surface. Object A moves east with:dt3b*z;:f sx rgrk /g a momentum of 24 kgm/s. Object B moves north with momentum 10 kgm/s. They make a perfectly inelastic co3kd f:stgzxb*; r:gr /llision. What is the magnitude of their combined momentum after the collision?

  A small bomb, of mass (bm k2)ohyk4mk2j.e s 10 kg, is 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 ek22ms ye(jhm .k )kob4ast 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 masan)c/c ow:pa9; 6k recs sits at x = + 21.0 m. Where is the center of ma crwkccn:;e9/6p a oa)ss on the x-axis?

  The center of mass of a two-particle system is at the o7zvezh h kh:3d9nt*ute7 9jgsd.z7k- rigin. One particle is located at (3.0 m, 0d e -9hgdv*ezz7:9hkt.j7nt us 3kh7z) and 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 atd d *nfmz::r+c (0, 0), 2.0 kg at (2.0, 0), and 4.0 kg at (2.0, 1.0). Determine the coordinates of thddn f*:zmrc: +e center of mass.

  Three masses, 1.0 kg, qwf( 8-wju6ng2.0 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 system?u f6-q gwnjw8(

  A 3.0-kg mass is positioned at (0, 8.0), and a 1.0-kg mas4swuvg )0y tz2s 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 being located at the o wtsu4)zv yg20rigin, (0, 0)?

  Use Table 7-1 to calculate ex4o:8da t,fjv w* i ux5;zk:pthe position of the CM of a whole leg including the foot when the leg is stretched straight out. Assume the person is 1.60 m taltx*8kvpe df5 a :u4;,oz:iwjxl.