99.36: What happens to tp4/sqt78tg8 - ,5n*gswd2mxaw; m qoj7 zbgtahe inertia of an object when its velocity is doubled?

  02.14: An intrinsic property of matter is one that does not dep3kftzs.j(o d:end on the quantity of matter present. Which oot ( .ksfj:zd3f the following properties is NOT an intrinsic property?

  04.16: A 20 kg boulder rests on h95tx,t fk.r3bhqked 1/ sm3i the surface of the Earth. Assume the Earth has maq/hkk,5b. 3t3 f mhextirds19 ss $5.98 \times 10^{24} \; kg$ and $g = 10\;m/s^{2}$ . What is the magnitude of the gravitational force that the boulder exerts on the Earth?

  09.12: A 5.0 kg sphere is in free fall near the surface of the 13 9p hs(ljloiEarth. What is the magnitude of the gravitational force acting on the earth by the sph pi9h ljs3ol1(ere? The Earth mass is $5.98 \times 10^{24} \; kg$ .

  00.09: Is it possible for an object’s velocity to:le*k qi/b/btxtyxtc 42 1c)y increase while its acceleration debxqy2xt)c*:1yk/btl/ c4 it ecreases?

  00.11: A certain particle undergoes erratic motion. At everi8- 6rjl)3ibged .,kekcrjq 2y point in its motion, the directiok2ql8kgj.je rb) 3-rc i id,6en of the particle’s momentum is ALWAYS

  17.14: A block is sus9b+y /gxs 3e njz/u7yzpended in the air at the end of a string held by a person. The person pulls on the string uniformly accelerating the block upwarz7/ bjyg9yznu +e x/3sd for a short time. During this time, which one of the following choices correctly identifies the Newton’s Third Law pair force to the force of the string on the block?

  07.18: In which one of the following sitqj-u+ ewih esc.gj7. 8owk2p- uations is the net force constantly zero onh. we7e8+wqsgc-ju p-oi.2k j the object?

  13.28: An object is in free fall close to the ground. A person intervenes s wg2*xkfh ;6c5k0olaand slows ts 2kx ;fwlg0hkco5a*6he object uniformly to rest. Which one of the following statements must be true about the magnitude of the acceleration of the object as it is being stopped by the person? The magnitude of the object’s acceleration is a and the magnitude of the acceleration from gravity is g.

  98.03: An object in equilibrium has three forces, F1 of /sh;emg psi*5 30 N, F2 of 50 N, and F3 o si5s h*/;pmegf 70 N, acting on it. The magnitude of the resultant ofF1 and F2 is

  01.07: A force of 6 Newtons and a c3m23v n k+jad/e 2lmbforce of 10 newtons can be combine to form a resultant with a magnitude of which ofem3+ ckmjd2 /3avbl n2 the following

  10.06: Which of the followis8kj c 9*2of*stj8yfk ng statements is most closely associated with Newton’s Thir*cj9 8sk ot*yfs8f2k jd Law of Motion?

  95.06: The reaction force does not cancel the.u ;t lz5,zzo+usc a:e action force because:

  14.14: A box rests on the floqmnh2(d5 m*bror of an elevator. The elevator is accelerating upw*rdmn(5hb 2qmard. Which one of the following choices best represents the Newton’s Third Law pair force to the gravitational force acting on the box by the Earth?

  15.15: A skydiver faltblr))as2 ncy -ha k76ls downward through the air with constant speed. Which one of the following choices correctly describes the Newton’s Third Law pair force to the air resista7krsy) 6ahlt2bcn a)-nce acting on the skydiver during the fall?

  06.08: A baseball is thrown by a pitcher with a speed of 35 m/s. fj vvqn85goxnbj2bl:,3* op / The batterswings and hits the ball. The magnitude of the gf28vj l bx*:/qbovp3 , j5onnforce that the ball exerts on the bat is always

  11.13: A physics book sits at rest on a l g2)gu mt:u jbw,ak21d5ab2ntable. On top of the book is a calculator, also at rest. Which one of the :lmtg22 wa)5agbk ndjb ,21u ufollowing choices is the Newton’s Third Law pair force to the force that the table exerts on the book?

  05.06: The students in a Physics I class were aa,hjzp4c )1t in lab conducting an experiment related to Newton's Second Law. The collected data were displayed on the graph at the right. From this graph, what conclusions can the studen1cza)at 4,h pjts make?

  99.03: If the net force on an object were doubled while at the same timei5s fw2p( k7wa the mass of the object w w75akfpis 2(was halved,then the acceleration of the object is

  96.15: A car whose mass is 1500 kg is accelerated uniformly f,s8.xi:on4ai bjo u j8rom rest to a speed of 20 m/s in 10s. The magnitujo.4: iujna,x ibo88sde of the net force accelerating the car is:

  99.05: A tractor-trailer truck is travelg j,;v3z1. )fsgk)pb xe) gppjing down the road. The mass of the trailer is 4 times the mass of the tractor. If the tractor accelerates forward, the forgjbsxjz).v1g p)g );3fppe k,ce that the trailer applies on the tractor is

  99.16: Which of the following principles best explainsypn6/ *ff-o*er+mbc m why large tractor-trailer trucks generally accelerate much more slowly that autom*rpcm/ e-f ofn*+ m6ybobiles?

  99.19: A 50 kilogram skater at rest on a frictionless rink throws a 2 kilogrp3xi:oe9 hn f.kt:e.sam ball, giving the bapet::hs3x n.k.i9 foell a velocity of 10.0 m/s. Which statement describes the subsequent motion?

  00.13: An object near the surface of the earth with a weizn;fd+3c) efss0rr g :ght of 100 newtons is accelerated 03+ gf;n)erf:zsc dr sat $4\;m/s^{2}$ . What is the net force on the object?

  98.25: A car whose mass is 1200 kg is accelerated u ayk ntvc /0al53k57wfrom rest by a constant force of 2400 N. What is the speed of the car 8.0 la0ukawk / vt37y55cns after beginning?

  98.32: A 3.0-kg block with initial speed 4.0 m/s slides across a rough horizs;k6 2jt+;uac azuz: q n0pop;ontal floor before coming to rest. The frictional force acting on the block is 3.0 N. How far does the block slide jku 6 z;aqsot;pap2z nc0+u:;before coming to rest?

  95.38: A block with initial velocity 4.0 m/s slides 8.0 m acrosl1/f: (g r/n xewa;gsycz oo1a(2.yfss a rough horizontal floor before coming to rest. The coefr 1s:n/a;2 ca/fzoygox f(e.(wylgs1ficient of friction is:

  09.21: A 20.0 kg box remains at rest on a horizontal surface while a person p/is2 nt 5ddl75lef+wsm 6(weix tyes2u;.v 3mushes directly to the right on the box with a force of 60N. The coefficient of2+syd x5ds fu5me /eei 3tnmw7 ; llwt.6v2(si kinetic friction between the box and the surface is $\mu_k$ = 0.20. The coefficient of static friction between the box and the surface is $\mu_s$ = 0.60. What is the magnitude of the force of friction acting on the box during the push?

  13.16: A block initially movi;zh0qv 1:q20l ihhyayng at 8 m/s accelerates uniformly to rest on a horizontal surface. The block travels a distance of 12.0 m during the slidh;iy a0 yqhzhl0v1:2 qe. Which one of the following choices best represents the coefficient of kinetic friction between the surface and the block?

  00.21: A car of mass m bj ;:ae k4m/l,wmt6)2 q zggqislides across a patch of ice at a speed v with its brakes locked. It then hits dry pavement and skids to a stop in a distanced. The coefficient of kinetic frict ;:ig/tamk6wqmg4 ,2 bq)ljzeion between the tires and the dry road is μ .
If the car had a mass of 2m, it would have skidded a distance of

  00.22: A car of mass m slides across a patch of ice at a speed v with its brake* o1ck mfwo*0ko0:zu;m ffmo00f zk g-s locked. It then hits dry pavement and skids to a stop in a distanced. The coefficient of kinetic friction between the tires ;0okuzfmfomw0k01k*f: zf -cmg *oo 0and the dry road is μ .

If the car had a speed of 2v, it would have skidded a distance of

  04.32: he driver of a car makes an emergency stop t2au +zu -weokp. (w2sby slamming on the car's brakes and skidding to a stop. How far would the car have skidded if it hado+wutk2(pe uwzs2.a - been traveling twice as fast?

  99.39: The driver of an automobile must carefully control eag qu+i0x pi5:ech of the following devices. Which of these devices can cause an ac :0u5qpg+iix eceleration in a moving car?
(1) the break pedal ( 2) the gas pedal ( 3) the steering wheel

  00.25: The net force ondbj 9nx(u9wmpe6f s- ; a rocket with a weight of 15000 newtons is 24000 newtons. About how much time is needed to increase the rocket ’ speeds -mufxe9 ;dn9b6(wpj from 12 m/s to 36 m/s near the surface of the Earth at takeoff?

  07.21: A box slides to the right across a horizontal f clzmg8(bnvt6v7 9k0 hdyjo7u+*un9 g 7j,fvoloor. A person called Ted exerts a force T to the right on the box. A person called Mario exerts a force M to the left, which is half as large as the force T. Given that there is friction f and the box accelerates to the right, ranzh98cokjv +9,lvbfgo(y7 7v*dunnjm 6t 0 u g7k the sizes of these three forces exerted on the box.

  02.27: The diagram below shows three roller coaster tracks of equal lebztzbr 54;o 4a- ydi/lngth. Assume that on all tracks thet 4azrb/ 4b-iz5y ;lod roller coaster carts start from rest at the same elevation and moves frictionlessly over the tracks to the finish.
If all roller coaster carts start at the positions shown, on which track would the roller coaster cart be traveling the fastest at the finish?

  02.28: The diagram below shows -38htgy6bu we three roller coaster tracks of equal length. Assume that on all tracks the roller coaster carts start from reth6 b g38euw-yst at the same elevation and moves frictionlessly over the tracks to the finish.
If all roller coaster carts start at the positions shown, on which track would the roller coaster cart reach the finish first?

  02.29: Assume the rollerco n/g5hy/g7u/ /k2pryw/ 6enpl3tv wufaster cartrolls frictionlessly along the curved track from point A to point C under the influence of gravity. Whatfv/tgugh uk 3 en y/r2/65pwpw/lny /7 would be the direction of the cart's acceleration at point

  02.40: A box with a mass of 50 kg is drf /;(gd ycl/rragged across the floor by a rope which makes an angle of 300 with the horizontal. Which of the following would be closest to the coefficient /rc g yr(;/lfdof kinetic friction between the box and the floor if a 250 newton force on the rope is required to move the crate at a constant speed of 20 m/s as shown in the diagram?

  04.40: A 6.0 kg block initially at;eeskofk;y 8*7 y3xmc0v /mkz rest is pushed against a wall by a 100 N force as shown. Thecoefficient of kinetic x0ym7mv;k* oe3czk/ s kf8ye;friction is 0.30 while the coefficient of static friction is 0.50. What is true of the friction acting on the block after a time of 1 second?

  05.10: A homeowner pushes a lawn mower across a horizontal patch of grassi+ 6fl2 i3saw 5kuy3wc with a constant speed by applylca3i 53fu6w kyisw2+ing a force P. The arrows in the diagram correctly indicate the directions but not necessarily the magnitudes of the various forces on the lawn mower. Which of the following relations among the various force magnitudes, W, f, N, P is CORRECT?

  06.14: A book leans against a crate on a table. Neit l)bkhm/i f4n/her is moving. Which of the following statements concerningh lbin/4/m) kf this situation is CORRECT?

  06.15: A crate of toys remains at 8p5eh:,q;t*bq avq*agtj wfko+-hh. rest on a sleigh as the sleigh is pulled up a hill with an increasing speed. The crate is not fastened down to the8 q*,v.g *fqkqatph ajhh + :;ot5bwe- sleigh. What force is responsible for the crate’s increase in speedup the hill?