99.36: What happens to the inertia of an object when wj;4n 8f, msbtwf- xbm(;2msqits velocity is doubled?

  02.14: An intrinsic property of mattezyp+xb1.v v d+m-jr)c r is one that does not depend on the quantity of matter)j1.x+cm rdy b-z+v vp present. Which of the following properties is NOT an intrinsic property?

  04.16: A 20 kg boulder ri wro0iv.b3 j8ests on the surface of the Earth. Assume the Earth has mass .8w 3bvjii0ro $5.98 \times 10^{24} \; kg$ 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 g-,zv+ ke utt(the surface of the Earth. What is the magnitude of the gravitational force acting on the earth by the sphere? T kgv-(ztu+e,t he Earth mass is $5.98 \times 10^{24} \; kg$ .

  00.09: Is it possible for an object’s velocity ts musn6k7 h0 5fnn7g3(tij1th o increase while its acceleration deg5js37f tn t071h kn6ihu(nmscreases?

  00.11: A certain particle undergoes erratic motion. At every poiqihu6+o gt m/ n-n4sa;nt in its motion, the direction of the particlntmo;+-/n6g4u ai hq se’s momentum is ALWAYS

  17.14: A block is suspended in the air at the end of a string held by abk jqk4 103hodenuc 74 person. The person pulls on the st4bne0k k d1ocu7 q4hj3ring uniformly accelerating 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 situations is the net forly st( 1yvtf;,2u8o,1d wjgduce constantly zero on the objec1tu2d8sylo(yf,jvw u1,d;gtt?

  13.28: An object is in free fall close to the ground. A person interve+cls r-vm29;uoit e k3rbu 27qnes and slows the 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 magnim tuskbr-7 i2o9qvl+ur 2e3c;tude 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 3kmwgo py 4n57+xkze()0 N, F2 of 50 N, and F3 of 70 N, acting on itpk5+(m)g7k w xenozy 4. The magnitude of the resultant ofF1 and F2 is

  01.07: A force of 6 Newtons 8 19b d4lelvgz / d4sa)nitdv+and a force of 10 newtons can be combine to form a resultant with a magnitude of which of the followi4 lgadse/i)1dlz49db + tnv8vng

  10.06: Which of the following state cx9r5 v6qv5ygw+xuu39a u-k hments is most closely associated with Newton’s Third Law of Motionvw3a5- qkhuucvg+y9 5uxr9 6x ?

  95.06: The reaction force does not cancel the action for4ko6 2z2irx fo5v-b+gbl53a +lc qa njce because:

  14.14: A box rests on the floor of an elevator. The elevatmct:ez qlma 3vb/3 s*+or is accelerating upward. Whi /:bve *aqlms+c 3zm3tch 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 falp/s l.utc3 mnu-5t 6f;zu6ewi0 lau3vls downward through the air with constant speed. Which one of the following choices correctly describf06 u cu6iuall s;mz3-nu53.e/wtp v tes the Newton’s Third Law pair force to the air resistance acting on the skydiver during the fall?

  06.08: A baseball is thrown by a pitcher w(h2f:+qh;th es6h v :itlx(kiith a speed of 35 m/s. The batterswings and hits the ball. The magnitude of the force thhe;+ tf 2khh t:v(ql:(hixsi6at the ball exerts on the bat is always

  11.13: A physics book sbgmva/ h5kf(n0+ ia2tea-g 1sits at rest on a table. On top of the book is a calculator, also at rest. Which one of the following choices is tia1h/ 0ba+ftg2ges-(5 vkmn ahe 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 in lab conducting a t pt4i b(j+gzptt* 1u0q97hwk;r fmv*n 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+7vztw*k *b;q1tgit r(mh pt4p0 9jfu students make?

  99.03: If the net for x/,sexjrw3k;tc*( y m5xde)je .jl r/ce on an object were doubled while at the same time the mass of the object was halved,then the.)5w(yde;/,jxstjl *cxk j 3re/x mre acceleration of the object is

  96.15: A car whose mass is 1500 kg is acc r5w-: xh.pu.iks0h krelerated uniformly from rest to a speed of 20 m/s in 10s. The magnitude of the net force accelerating the ca w 5xsi.:kr0-hk.hpurr is:

  99.05: A tractor-trailer trucgs18n07uc ;.f taw o bpdc89fcpt7 8lsk is traveling down the road. The mass of the trailer is 4 times the mass of the tractor. If the tractor accelerates forward, the forac.ff8bst89gpo7c 0t71 p;cl 8wudn sce that the trailer applies on the tractor is

  99.16: Which of the following principles best exsk ip-t,/tg/t)u )e ouq-fq1mplains why large tractor-trailer trucks generallyk/up/g)ti,tm1o tf--se) uq q accelerate much more slowly that automobiles?

  99.19: A 50 kilogram skater at rest on a frictionlesshopr.:z;h*d s rink throws a 2 kilogram ball, giving the ball a velocity of 10.0 m/s. Which stator: hs .hpzd*;ement describes the subsequent motion?

  00.13: An object near the surface of the earth with a weight of 100 newtons do/5wu,-if - pphm; qqis accelerated5 pw/ ;qf-oi,mdquhp- 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 rest by ko8bk 5h*7mv pa constant force of78bkpomkvh5 * 2400 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/ubq,dkr3. zhlt pe(hy 1 ,*j.us slides across a rough horizontal floor before coming to rest. The d ut1l3 y( zh.,hr, bpquje.k*frictional 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 96n1psedxdki(p 2(xi 6c 8l xq4.0 m/s slides 8.0 m across a rough horizontal floor bei 6di98sknq2(6x cxle(ppx d1fore coming to rest. The coefficient of friction is:

  09.21: A 20.0 kg box remains at rest on a horizontal surface while a person rm:v,-vkttk.4p8:tfu po07s x6xhm ua5sf)ppushes directly to the right on the box with a force of 60N. The coefficient of kink:frsvhtx)tk .pfau ts6 08mo7vx 4,:pu 5-m petic 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 rest on a h .th3ew hkvg:q+ l47c3;mjg8tiuqpd/orizontal surface. The block travels a distagh ;4 mj/uk7 8gi3t qvcwd.3:htelqp+nce of 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 across a pv; +.cb2x etgyai:oq:atch of ice at a speed v with its brakes locked. It then hits q:2i.a;b:ev yxc g to+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 of ice at a spe;5fkev;4j w jhg h9)u4dkg( bxed v with its brakes locked. It then hits dry pavement and skids to a stop in a distanced. The coefficient of kinetic friction betweekj k b5v9;4g )4ewux;(hjdfg hn 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 stoadegeeq)9.ok)wl0n 1(*b4 sitim2 ezp by slamming on the car's brakes and skidding to a stop. How far woulz qbtde4g )0ame2 l19isew).o* iken( d 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 followingu ye)n mh /af5p,fj4nm ks-x*) devices. Which of these dehyn5s fju 4, xnm k)-/fpm)*aevices 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 on a r q:wj0o4 nj-tnocket with a weight of 15000 newtons is 24000 newtons. Abo40:j qwn- ontjut how much time is needed to increase 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 per2zi -3 yoyue0yson called Ted exerts a force T to the right on the box. A person 0-ei u3z2 yyyocalled 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 coaster tra:30xketk p d3rcks of equal length. Assume that on all tracks the roller coaster carts start fr t3d0pk3 xk:reom 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 three roller coaster 4vgf( tvipn)ux,2+ e ctracks of equal length. Assume that on all tracks the roller coaster carts start from rest at the same elevation and moves ( gv tc+n,pv)ie24ufxfrictionlessly 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 frictionlessly zqs8 t)r5i ot9 r0r;dbalong the curved track from point A to point C under the influence of gravity. What 09t; tqrdrsio8zb) r5 would be the direction of the cart's acceleration at point

  02.40: A box with a mas 1jaz;+orq jwigr51; qs of 50 kg is dragged 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 of 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 show j1r;qiqjw5 +zorag;1n in the diagram?

  04.40: A 6.0 kg block initially fjtt0 2y:w27*xh8s k- ivmddtat rest is pushed against 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 f v-t02j md dwty8*2sht7x: kion the block after a time of 1 second?

  05.10: A homeowner pushes a lawn my x6;hcf123;ucoylvfa o o27lm2 bew1 ower across 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 relations among the various force magnitudes, W, f, N, P is C6 u cfb3;;xw 2c2ovyoe1yll72moh fa 1ORRECT?

  06.14: A book leans against a crate on ab+lzi1+whx*c/r gu p2 table. Neither is moving. Which of the following statements conceb 12hlp +g ui+/wx*zrcrning this situation is CORRECT?

  06.15: A crate of toys remains at rest on a sleigh as the sleighm7o4 :vgs+ 5lufpey d7 is pulled up a hill with an increasing speed. The crate is not fastened down to the sleigh. What force is responsible for the crate’s increase in speedup thyg 5dop+me7vf7 l4:sue hill?