99.36: What happens to the inertia of an objecwt s8gy)jv o11t when its velocity is doubled?

  02.14: An intrinsic prog.);hrd7ok hqdipaydq7/9 q; perty of matter is one that does not depend on the quantity of matter present. Which of the following properties is NOT7kdi)rd 9gpq7oy q. /qhdh ;;a an intrinsic property?

  04.16: A 20 kg boulder rests on the suz dj2e9)wtwb2 rface of the Earth. Assume the Earth has mass 2twe2)9bd zwj$5.98 \times 10^{24} \; kg$ 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. What is kgygxsn13qc */ nv6k6)bv+ rq the magnitude of the gravitatiov * vqck+616q)ry/gg3nsknbx nal force acting on the earth by the sphere? The Earth mass is $5.98 \times 10^{24} \; kg$ .

  00.09: Is it possible for an object’s velocity to j il3njna md)x- .,77k) hh fuk(:apfgincrease while its acceleration decrea3)u,.p)nmkn:ahk7hadf- gxf7i l j j (ses?

  00.11: A certain particle undergoes erratic motion. At every point in --80 p2ahtk.(s onljyjsjk /i its motion, the.0j28a-pkj noy( l/-ihtjks s direction of the particle’s momentum is ALWAYS

  17.14: A block is suspended in the air a:, a xf-ajxfunqd0a8eb5-(aw vw- ;bnt the end of a string held by a person. The person pulls on ta0e-x -j n;d:awn-5, axwfu(av8qb bfhe string 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 fq1/vp ty-jhc4uc-c8vorce constantly zero on the oc/8jvu q4v tc1c-y- hpbject?

  13.28: An object is in free fall close to the ground. A person intervenes and s 956gg p ap3(dv+sfbsi8axp51peq g+ilows 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 magnitude of the object’s acceleration is a and the magnitude of t spbg9ie5 p( pisvda g3x6a 1+85fp+gqhe acceleration from gravity is g.

  98.03: An object in equilibrium has three forces, F1 of 30 N, F2 6g.h h,ihxs cpod/g 9c3/4vttl0g3qzof 50 N, and F3 o6q43h / .g3p s,vgtgtdolhh9xcc/0i zf 70 N, acting on it. The magnitude of the resultant ofF1 and F2 is

  01.07: A force of 6 Newt74-nicl cxk/tons and a force of 10 newtons can be combine to form a rc- cknit4l /x7esultant with a magnitude of which of the following

  10.06: Which of the following statements is most closely associated with Newtofb 4(woo+b n4an’s Third Law of Motion?f 4oo+wnb4 (ba

  95.06: The reaction force does not cancew 7j jbci hod17x(a-pb1*cf(ql the action force because:

  14.14: A box rests on the floor of avgb02/.e;0yltg2k ki o uj.a en elevator. The elevator is accelerating upward. 0/lgtka.e jvyke2 og2bi;u0.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 falls downward through the airt:wkzi 6q.7agjj9a1x with constant speed. Which one of the following choices correctly describes the Newton’s Third Law pair force to tx jka.:qt79 1zwgija 6he air resistance acting on the skydiver during the fall?

  06.08: A baseball is thrown by a pitcher with a speed of 35 m/s. i9 7mo6bk r8pv The batterswings and hits the ball. The magnitude of the force that the ball exerts on the batkrpo 769vimb8 is always

  11.13: A physics book sits at2n0s0+ yohhzaekt2d 6k(yz nen ,d5m 8 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 Thzymnen(k eo s06 hd 0td25a +ky,n8h2zird Law pair force to the force that the table exerts on the book?

  05.06: The students i7kv4qndalw,c+cyq,pj :d7pe,c * o2p n a Physics I class were in lab conducting an experiment related to Newton's Second Law. The collected data were display ca,p4dylpqnodkv, ej+w:,277 ccpq *ed 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 the same time the+csl7dcpo pj,6q3os)kpvo z+ +qu 5x8 mass of the object wu z++5v8qsoo) ,pj6 cxqodcp3l7p ks+ as halved,then the acceleration of the object is

  96.15: A car whose mass is 1500 kg is accelerated uniformly from rest to am,0odu u/ qs wh-0): y5oihyzz speed of 20 m/s in 10s. The magnitude of the nz ud),msy-ooz5:hq iyw0hu0 / et force accelerating the car is:

  99.05: A tractor-trailer truck is traveling down the road. The mass of 0a(r.kk( b-j,kuage ethe trailer is 4 times the mass of the tractor. If the tracae- rj,kk(k 0gub(ae .tor accelerates forward, the force that the trailer applies on the tractor is

  99.16: Which of the following principles best explains wh61 3rzx/dxel8vx :pez y large tractor-trailer trucks zxder :/ x86p3zxle1 vgenerally accelerate much more slowly that automobiles?

  99.19: A 50 kilogram skater at rest on a frictionless rink throdu77y(ljyz*yu:: xanws a 2 kilogram ball, giving the ball a velocity of 10.0 m/s. Which statement describes the subsequen:*u z ya(x7ny:j7du lyt motion?

  00.13: An object near the surface of the earth with aneij3ob)r/p5vi 9 * rs weight of 100 newtons is acceleratenej9iv5io sr) b*3/rpd 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 a cw3k4 p 4s);s jtbym(vh8( qxtyx,qp ,bonstant force of 2400 N. What is the speed of the car 8.0 s after beginnin 4sw8tyxq v jt,s,(3kqm(byb4;pxh)pg?

  98.32: A 3.0-kg block with initial speed 4.0 m/s slides across -gll6xw: :u2no q1 gvna rough horizontal floor before coming to rest. The frictional force acting on the block is 3.0 N. :ovn1lx unlgw2 6-g:qHow far does the block slide before coming to rest?

  95.38: A block with initial velocity 4.0 m/s slides 8r m:(zy hn789/ip g p*zfoabj7.0 m across a rough horizonta*:h77(m/iy jrbfng 9 o 8zppazl floor before coming to rest. The coefficient of friction is:

  09.21: A 20.0 kg box remains at rest on a hori f/ab- b*1v g(-/)b o ,q(gyj8yrczfbw,uzleozontal surface while a person pushes directly to the right on / ,eg(y-g/,q l(1*zafbvuf c bwz) ojoy-b8brthe box with a force of 60N. The 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 8 m 4v 8v4uqkm 55o+cl2kn epj0lx/s accelerates uniformly to rest on a horizontal surface. The block travels a distance of4 m4uqlxeo5k2 klc8v5p0v + jn 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 acroqx-,uo t;w 2if;q/fddss 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 friction between the tires and the d/u t;qf dwf i;2xdo-,qry 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 bc9)wuw r )t )f(p4hphcrakes locked. It the)wrpp hw(c)4utc)9fh n 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 emergency stop by slamm h1wd 6c.cgm3wing on the car's brakes and skidding to a stop. How far would the car have skidded if it had been travdc6cmgwh w.13 eling twice as fast?

  99.39: The driver of an automobile must carefully control eac0kn/kad)k: st5 + i,4 iqgc4-dxotlgph of the following devices. Which of these devices can cause an acceleration in a moving ck), 5onxg:k ad/4pcg4isl dq -tt+k0iar?
(1) the break pedal ( 2) the gas pedal ( 3) the steering wheel

  00.25: The net force on a rocket with a weight of 15000 newtons isf f d,.s:bkzh gi7.p7v 24000 newtons. About how much time is needed to increa7hz :i.bk. fp, 7vfgdsse 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 Tedo 2 ka+u/fymlb3t(cpf6)le d6 exerts a force T to the right on the box. A person cal/c+ m uy bk)lof(dl et2p366faled 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 show/0r7p mtkfr/ iv :iv 2fvyp:9xs three roller coaster tracks of equal length. Assume that on all tracks the roller coaster carts start from rest at the same elevatv:irv mv7 i9t2r0f fy/xp/: kpion 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 roller9 x3.ypyw2 idx coaster tracks of equal length. Assume that on all tracks the roller coaster carts start from rest at the same e 2xxydy9.3wpilevation 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 jfbcw5*1 dwe6cartrolls frictionlessly along the curved track from point A to point C under the influence of gravity. What wobf cd15w6*ejwuld be the direction of the cart's acceleration at point

  02.40: A box with a mass of 50 kg is dragged ac0 .9czabmebj n 5a:o,bross 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 conc :o9amznea b.,j5bb0 stant 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 byynel .u xdxcca .;.re8b fb992 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 friceb.u9c9 dcelb8 fxry.. a2x n;tion acting on the block after a time of 1 second?

  05.10: A homeowner pushes a lawn mower across a hor;3j whcmq31ysa: k+jc -aae8 vizontal 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 followhs;cv+m qjw -1aykj:c3 a8e 3aing 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. Which of the e,/b sd4ymw 60gen;fm following statements concerning this sit4/bg,s6 wmedne0f ym; uation is CORRECT?

  06.15: A crate of toys remar w7lss-r6; kn-hp*+9i ss dpuins at rest on a sleigh as the sleigh is pulled up a hill with an increasing speed. The crate is not fastened down to the sleigh. What force is responsidslr6r; -us- wp*ss7p ni+ hk9ble for the crate’s increase in speedup the hill?