99.36: What happens to the idzyjd1 oc 5./zan9a e+nertia of an object when its velocity is doubled?

  02.14: An intrinsic property of matter isaxj) 8e,i0+ndha kdtgyje8 2g1 4bsj. one that does not depend on the quantity of m a ,. 4egj+bhgxiajt0e 8dnd)j2k8y1satter present. Which of the following properties is NOT an intrinsic property?

  04.16: A 20 kg boulder rests on the surface of the Earth. t-wub99txk b2 /zqxdge xqds7eb/be u25r6* 6Assume the Earth has ma dqb*xu7bbseu66qez/kgd - ew 52t9btr/x9x2ss $5.98 \times 10^{24} \; kg$ 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 thv9l :x)hjeu td(sr4(we Earth. What is the magnitude of the gravitational force acting on the earth by the sphere(:lhrwesd (uvjt4x)9 ? The Earth mass is $5.98 \times 10^{24} \; kg$ .

  00.09: Is it possible for an object’s iz /jzh u47yu6t 0/ 9lzbd*iurvelocity to increase while its acceleration decreas/ 9izl6*0/bzhyuu i z7tjdur4es?

  00.11: A certain particle undergoes erratic motion. At every point in its m(7)tgb v t t1zy0:p0oi.;gr8 ws:fwq e ze8ntjotion, the direction of the p po8e 0q :(t8bv.jwin sr7tw1ttgy;g 0:ezz)farticle’s momentum is ALWAYS

  17.14: A block is suspended in the air at the end of a str sj/6o21gyb kding held by a person. The person pulls on the string uniformly acceler/d b jso2kyg16ating the block upward 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 p3 (unu5jglj4 situations is the net force constantly zero on the ojlu3j5 pu4ng(bject?

  13.28: An object is in free fall close to the ground. A person inter bbm(d d,pxci 9fa95p)d3-ncz venes and slows the object uniformly to rest. zfc ,x dmcddnp ab39b-9p)(5iWhich 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.u0doxu0wvi1w 1a9ir has three forces, F1 of 30 N, F2 of 50 N, and F3u 01dw9o1.uwvi raix0 of 70 N, acting on it. The magnitude of the resultant ofF1 and F2 is

  01.07: A force of 6 Newtons and a force of 10 newtons can be combink 52: xur6)yyug0elaqe to form a resultantl0kqy6ga 5xe: yr2u) u with a magnitude of which of the following

  10.06: Which of the following y 9r1, 1ah;rty xenr3fstatements is most closely associated with Newton’s Third Law 9f ahy1r3x;et,1yrn rof Motion?

  95.06: The reaction force d*zfmm s6eo;r 8oes not cancel the action force because:

  14.14: A box rests on the floor of an elevator. The elevator is accele*e,a5*p 4svdq2b wr israting upward. Which one of the following choices best represents the Newton’s Third Law pair force to the gravitationa,42wasbv qpi res*d*5l force acting on the box by the Earth?

  15.15: A skydiver falls downward thrxr*)kq6ao 5 440nidjje0rr owough the air with constant speed. Which one of the following choices correctly describes the Newton’s Third Law pair force to the air resistance acting on the skydiver during the falld0exjj 06*5raqor4 o n)w i4kr?

  06.08: A baseball is thrown by a pitj-fl:mcq7 , wz;g se)ycher with a speed of 35 m/s. The batterswings and hitmc-l gwz7 q:;j )s,fyes the ball. The magnitude of the force that the ball exerts on the bat is always

  11.13: A physics book r;fbj7sciexq 01 3b)i*3f vmw sits at rest on a table. On top of the book is a calculator, also at rest. Which one of the following choices is the Newton’s Thqse7 ibiw 1xcf0f)vb* ;rj33mird Law pair force to the force that the table exerts on the book?

  05.06: The students in a Physic:kjuu2 snz i-lnh+x96 /nic3 qs I class were in lab conducting an experiment related to Newton's Second:i +uisnkql-9u2 6/x n3njzch 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 were doubled while at.il: 9)amegk o the same time the mass of the object was hal 9aogk:.e i)mlved,then the acceleration of the object is

  96.15: A car whose mass tm;rac6 1x/ 0ajpji3l is 1500 kg is accelerated uniformly from rest to a speed of 20 m/s in 10s. Thep l1c0;tj3rx6i aa /jm magnitude of the net force accelerating the car is:

  99.05: A tractor-trailer truck is tralddk6n+u-og9 ftg4h:k : kw.cveling down the road. The mass of the trailer is 4 times the mass of the tractor. If the tractor accelerates forward, the force that the trailer applies owctuhg +9kfd.4lk: og- nk:d6 n the tractor is

  99.16: Which of the fo5dw t0g3h dmfn4- 4g.mn) r 8o.lxtzrlllowing principles best explains why large tractor-trailer trucks generally accelerate much mow.3 z40n4rxtrf)hol gt-dd .nmm58g l re slowly that automobiles?

  99.19: A 50 kilogram skater at rest on a frictionless rink throws a 2 kilog8hqupv1kq 9*zo7w*o(oej iz 1 ram ball, giving the*zz qowepo1(uohkvq9 1i7 *8j ball a velocity of 10.0 m/s. Which statement describes the subsequent motion?

  00.13: An object near 5yb3orr ctu+5t)t ce 5j( ge7gthe surface of the earth with a weight of 100 newtons is a5 o5uteegb7y( + jc gr5r)3ttcccelerated at $4\;m/s^{2}$ . What is the net force on the object?

  98.25: A car whose mass is 1200 kg(sqg2 ;eyv5x+ guj,he)mi(ll8s p)oh is accelerated from rest by a constant force of 2400 N. What is the speed of the car (5hmil evq,2s+8 e sj(ggh;o)lp)y ux8.0 s after beginning?

  98.32: A 3.0-kg block with hj4g. rix7 z,ik uum76initial speed 4.0 m/s slides across a rough horizontal floor before coming to rest. The fru .6uxgj k7hr 4z7im,iictional force acting on the block is 3.0 N. How far does the block slide before coming to rest?

  95.38: A block with initial velocity pp-xf2mb y s8qc j,)l/4.0 m/s slides 8.0 m across a rough horizontal floor before mpcjfp q8) ys-,xb2/lcoming to rest. The coefficient of friction is:

  09.21: A 20.0 kg box remains at rest on a horizontal surfacel;ph4 l;iot5 7qxqyt3 while a person pushes directly to the right on the box with a force of 60N. The coefficient of kineticqx7q3 yt;lop il5;h4t 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 8 m/s accelerates uniformly to 53nkxygsr :h2 rest on a horizontal surface. The block travels a distance ofy:5r32 k xhgsn 12.0 m during 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 slides acros b7fv3esd(je9 s a patch of ice at a speed v with its brakes locked. It then hbsej(793fvd e its dry pavement and skids to a stop in a distanced. 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 across a patch)d9j6) kcphvqo 7ysrhl;a.7 3s :nk izmlrp0. of ice at a speed v with its brakes locked. It k .pm0hp7q s9z6 hlk)3y. vdlsa; jrnoir)7:cthen hits dry pavement and skids to 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 emeanb94kym vfyz 6kiko(g-y,;.os zs 59rgency stop by slamming on the car's brakes and skidding to a stop. How far would the car have skidded if it had n9zb(gsk;z9f. iys mo,6-vk5k ay4 yo been traveling twice as fast?

  99.39: The driver of an automobile must c9dv w hvz : f8zn,o(yh+m:ukv(arefully control each of the following de9: dv,+o vwynu :kz(hhm(8f zvvices. Which 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 cq zq5j5 12aaoon a rocket with a weight of 15000 newtons is 24000 newtons. About how much time is needed to i a1cz52qaoj q5ncrease the rocket ’ speed 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 floor. A person called 7/ ci4 xefacp-z55j;d mudkx*Ted exerts a force T to the righ4 /xd*juk7ce-ia;c d5xpmfz5 t 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, rank the sizes of these three forces exerted on the box.

  02.27: The diagram below shows three roller nfuv a5ycjvg*oi3 -)mj41 e ,yrbq7g4coaster tracks of equal length. Assume that on all tracks the roller coaster carts start from rest at the same elevation and moves frictionlessly over the trac5ue41n3bgj* -fvyo7y4qjm ,var)cg i ks 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 beloja7w 2zl oc m5puu7s 19fap;.dw shows three roller coaster tracks of equal length. Assume that on all tracks the roller coaster carts start from rest at the same elevation and m75 opaa71.lwf9u uj ; pc2dszmoves 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 frictionlei q ( invg+jat/p)q(+zssly along the curved track from point A to point C under thai (qin z+g/+jtq)p v(e influence of 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 the floor by a ropei6s5k sqsz 9uecfe6n()bc04w 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 floor if a 250 newton force on the rope is reqc4 s0e) qze(n 5s6s69kf cuwbiuired 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 agalmk ;xz s38 xwayw5.g5inst a wall by a 100 N force as shown. Thecoefficient of kinetic 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 wxw;l 5s kz8 ag.xym53second?

  05.10: A homeowner pushes a lawn mower across 3-8p )m2z fxjhaim ejjk.x(0y a horizontal patch of grass with a constant speed by applying 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 relatio a)mxmx-0j j3f8j2k.hp(ez yins among the various force magnitudes, W, f, N, P is CORRECT?

  06.14: A book leans against a6f-a6zdgawy.y8gv+)wp 3 non- ve q ,l crate on a table. Neither is moving. Which of the following styzqfgly-v. 3 68pweng-,wd )+oav na6 atements concerning this situation is CORRECT?

  06.15: A crate of toys remains at restbxnhy .u9.ie) on a sleigh as the sleigh is pulled up a hill with an i9i)nu. beyx.hncreasing speed. The crate is not fastened down to the sleigh. What force is responsible for the crate’s increase in speedup the hill?