99.36: What happens to the inertia oetjwrf3y3v)b; (r6hktv3po *f an object when its velocity is doubled?

  02.14: An intrinsic property of matter is one that dvo.v) x+k) 8jgduki m1oes not depend on the quantity of matter present. Which of the following properties is NOT an intrinv.kd)oui+k mxj1gv8)sic property?

  04.16: A 20 kg boulder rests on the surface of the Eartwlwu y1nj6dt ;r)0l ,th. Assume the Earth has ma uwtnyl0w dlt16r);j,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 Earth. Whate4;n/ y8) k0 beln+aab) chawc is the magnitude of the gravitational force acting on the earth by the spher;b8+)nh 4/e)cclw banay e0ak e? The Earth mass is $5.98 \times 10^{24} \; kg$ .

  00.09: Is it possible for an object’s velnsc c2g4,r e480nggfcd x-/ beocity to increase while its acceleration nsc2eecg4x rc b8f,g4-g0n /ddecreases?

  00.11: A certain particle undergoes erratic motion. At every po ey my2 0ce/*m7y+bgzmvr8r a-int in its motion, the direction of the particlevgb 7zr-0me/ rc e8 *+ymyyma2’s momentum is ALWAYS

  17.14: A block is suspended t(*ihg3 ho .vqthr p7dky7f-4h5* usbin the air at the end of a string held by a person. The person pulls on the string uniformly accelerating the block upward for a short time. During this time, which on-3d.hrsth t 47vfk *q(i5gy7*o pubhhe 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 situationsru u,ux;/-ots is the net force constantly zero on the u/ru,;uo-xts object?

  13.28: An object is in free fall close to the g)(r;cre8 omq0)m 1 c. i o haqsp9kbrwlv5cj81round. A person intervenes and slows the object uniformly to rest. Which one of the following statements must be true about the8m9c (oh w obejs)l.; a1c mq81rpqr)k i0vr5c 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 equixzf5.v w*ety/ x-(3t:p xceoi librium has three forces, F1 of 30 N, F2 of 50 N, and F3 of 70 N, acting on it. The magnitude of the resultant ofF1 and F2 (pfc.te3tve/w i 5 *xoxyz-:x is

  01.07: A force of 6 Newtons and a force of 10 newtons can bevl(dd, dyl.qjv)0(xab ;kr13 uhl1j z combine to form a resultant with a magnitude of which of 1 3(llvdjav0h,bkur ).xld (q y 1zjd;the following

  10.06: Which of the following statements is most cyy0z l)erx x41losely associated with Newton’s Third Law of Motion? 10xzrl4ey yx)

  95.06: The reaction force does not cancel the action force becausx19p6sgj rlbp d , :/wd,ko2ife:

  14.14: A box rests on tm-kjd :pe x5ob rw+.k-he floor of an elevator. The elevator is accelerating upward. 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 .o-b km:xdw- jpe+r5 kEarth?

  15.15: A skydiver falls downward through the air with constant speed.ym8q30skl4tz Which one of the following choices correctly describes the Newton’s Third Law pair force to the air mql8 4y0sztk 3resistance acting on the skydiver during the fall?

  06.08: A baseball is r 7o, dm3+njlczb* b0uthrown by a pitcher with a speed of 35 m/s. The batterswings7obuj* rz0nc db,3ml + and hits the ball. The magnitude of the force that the ball exerts on the bat is always

  11.13: A physics book sits at rest on a table. On bocn 3uwl+0(/m2 otbb top of the book is a calculator, also at rest. Which one of the following choices is the Newton’s Third Law pair force to the force that the table exerts on the book? 3 t /m co+u2n0w(bobbl

  05.06: The students in a Physics I class were in 3otet:bx89ssf9 b h i5+s:avllab conducting an experiment related to Newton's Secox::s5 ts9b+9 a3ei8b vs thlfond Law. The collected data were displayed on the graph at the right. From this graph, what conclusions can the students make?

  99.03: If the net force on an object wereca4e pa1j;7;i dgfz:qt ( kmz( doubled while at the same time the mass of the object was halved,then the accelerapzj(te;1kc aif 4a (g7qm:zd;tion of the object is

  96.15: A car whose mass is 15 c;b38g00kl;rdx ov(*a ejvig00 kg is accelerated uniformly from rest to a speed of 20 m/s in 10s. The magnitude of the net force accel;lc3avxrbkd0(8 oejgiv*0 ; gerating the car is:

  99.05: A tractor-trailer truck ik87*i i,n6/.xqz. hnonijlyo s traveling down the road. The mass of the trailer is 4 times the mass of the tractor. If the tractor accelerates forward, the force tnno.*hii zk6q 8n xi/ o7ylj,.hat the trailer applies on the tractor is

  99.16: Which of the following principles best explains why large tractor-trailera 1i y vmito4va7-fzua91.q2a trucks generally accelerate much more slowly that automobm42ivi -zaau ot1 7vqy9af1.ailes?

  99.19: A 50 kilogram skater at r(vednog/1ubc4fjej-0 f cn)1 est on a frictionless rink throws a 2 kilogram ball, giving the ball a velocity of 10.0 m/s. Which statement describes the subsev n) 01deufnf gcb4-e1(jcoj /quent motion?

  00.13: An object near the surface of the earxrdcsc/99n g*oimk5b e 3 o0k+th with a weight of 100 newtons is accele o3icnkmsx 0 9*/kder5o9+cbgrated at $4\;m/s^{2}$ . What is the net force on the object?

  98.25: A car whose mass is 1200 kg is accelerated from res ttxnb apq18(+t by a constant force of 2400 t8bnqp+ ta1 x(N. What is the speed of the car 8.0 s after beginning?

  98.32: A 3.0-kg block with initial speed 4.0 m/s slides across a ro;0xfk+ltx o 7sugh horizontal floor before coming to rest. The frictional force acting on the block is 3.0 N. How far does the block slilxxk7st; f0+ ode before coming to rest?

  95.38: A block with init 8;g7ibxpn *ikial velocity 4.0 m/s slides 8.0 m across a rough horizontal flngi; kib *7x8poor before coming to rest. The coefficient of friction is:

  09.21: A 20.0 kg box remains at rest on a horizontal surpg8 3:vw h)lme;ah(0eh:m uwtface while a person pushes directly to the right on the box with a force of 60N. T)(hh g0m ;he::twv awmeul38 phe coefficient of 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 moving at 86o2xym/ *d25ab;+ vs(vu vc aq0ei itv m/s accelerates uniformly to rest on a horizontal surface. The block travels a distance of 12.0 m durino/saqdcb 2a5vv 0 (+*iu2iemt xv6 ;yvg the slide. 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 sli)e2wv m7 ncwgf.s h4d8des 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.snmf .2 he 784gcw)dwv The coefficient of kinetic friction 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 acewr2bogi( )m*gx v54v ross a patch of ice at a speed v with its brakes locked. It then hits dry pavement and skids x5go )b(ei4v2vwr g*mto a stop in a distanced. The coefficient of kinetic friction between the tires and 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 by slamming on the car's )j 9b8oag vz7k:nfv9 v0u qq(pd6q,rnbrakes an a(ur6fq79nbqv v89 n pz)gqv0:o dk,jd skidding to a stop. How far would the car have skidded if it had been traveling twice as fast?

  99.39: The driver of an automobile must carefully control each of the h:x );s iueql+following devices. W:sl ex+i uh)q;hich of these devices can cause an acceleration in a moving car?
(1) the break pedal ( 2) the gas pedal ( 3) the steering wheel

  00.25: The net force r2ljb-ve -p;ron a rocket with a weight of 15000 newtons is 24000 newtons. About how much time is needed to increase the rocket ’ speed from 12 m/s to 36 m/s near the surface of the Er;b 2-jvepr -larth at takeoff?

  07.21: A box slides to the right across a horizontal floor. A person 6)aw39zgwbf/ vf7e6(kmhpzr 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 accelmh p/f6 ( 76kb awzwerf9)3gzverates to the right, rank the sizes of these three forces exerted on the box.

  02.27: The diagram below shows three roller coaster tracks of equu :k3.,mxp.o0 z-z:u h3c /dplrrjqfyal length. Assume that on all tracks the roller coaster carts start from rest at the same elevation and moves frictionlessly over the tracks t -huqj oy:.l fprk3d /zzmc:xpru,.03o 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 three roller coaster tracks of + adb -50jfs:7+e)fovbxy fnrequal length. Assume thafjfrdayb 0s):+ b+5v7ef oxn- t on all tracks the 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 reach the finish first?

  02.29: Assume the rollercoaster cartrolls frictiodl4gk)2ciclg9 f k7jo;0ot +gnlessly along the curved track from point A to point C under the influence ogf0kg l+7 igk)oj9l2;d4cc otf gravity. What would be the direction of the cart's acceleration at point

  02.40: A box with a mass of 50 kg is dragged across the19;((bngl3g-9outm 5gymqz 7o f msns floor by a rope which makes an angle of 300 with the horizontal. Which of the following would be closest to the coefficient of kinetic friction between the box and the flogf-35 (nm9zs bny1(q7o u9g sm;m gtloor 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 rest is pushed against a wall by a 100 N lryl3 s6. nqf)force as shown. Thecoefficient of kinetic friction l6 .yrnqfls)3is 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 lawngcj zgs gmd3yyl: o2j4+d6v88 mower across a horizontal patch of grass with a constant speed by applying a force P. The arrows in the diagram correct:sd3vjjzg g8g4l 8 2ydc+ymo6ly 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. Neither is moving. Whichk+ 8 m5pswj*x, ab7pgj of the foll g,p aj+8wxs5mkbp*7 jowing statements concerning this situation is CORRECT?

  06.15: A crate of toys remains at rest on a sleigh as kj0nc1usb 3m4the sleigh is pulled up a hill with an increasing speed. The crate is not fastened down to the sleigh. What force is responsible foc0j 34bnu 1ksmr the crate’s increase in speedup the hill?