99.36: What happens to the in33 0.yydkgbgnxjeb3ub p7mb o0ei8+0ertia of an object when its velocity is doubled?

  02.14: An intrinsic property of matter is one that does not depend on the quanbip; 03-wet+h, topdx ti3ttbw,xh;+0 io pp- edty of matter present. Which of the following properties is NOT an intrinsic property?

  04.16: A 20 kg boulder rests on the surface of the qi2 ;* hdqsdc nm(akkv sj:6s/cmc;7*Earth. Assume the Earth has macqhdcq:* *n6v;7jm(s dsmks;k 2c/ iass $5.98 \times 10^{24} \; kg$ 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 thedfsb6xu9;m /h Earth. What is the magnitude of the gravitational force acting on the earth by the spherem6/fxdsh ;u9 b? The Earth mass is $5.98 \times 10^{24} \; kg$ .

  00.09: Is it possible for an object’s velocity to increase whib p:.y0nb;b8csoh/ 0:gya tscle its acceleration de:yabtbsh0 0ny;cs8 : cbgo.p /creases?

  00.11: A certain particle und0* .cyv:r; xxpy r(vzuergoes erratic motion. At every point in its motion, the direction of the particle’s momentum is ALWAYS:u y x;rxzpy*vvc0r.(

  17.14: A block is suspended in the air at the end of a string held by a pe-e91k4p; r kchj-enp p4sa5hjpoe+1 q rson. The person pulls on the string uniformly accelerating the block upward for a short time. During this tine-s+j4e opjp-9 5 ceq hp;rkk4h1a1pme, 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 foll 5tcpp2y l g.tp,c+;oc(yih f,owing situations is the net force constantly zero p c,t2(oc+;p t. ycf ghiyp5,lon the object?

  13.28: An object is in free fall close to thea h:8 d5w;g+)s7zo gwoii8 de 7n;hewt ground. A person intervenes 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 magnitude of the object’s acce;ns87):d e;we ih owd5w8aitg7zgh+oleration is a and the magnitude of the acceleration from gravity is g.

  98.03: An object in equilibrium has three forces, F1 of 30 N, F2 of 50 6fvai9j; x)cd N, and F3 of 70 N, acti9 )iad cfx6vj;ng on it. The magnitude of the resultant ofF1 and F2 is

  01.07: A force of 6 Newtons and klwgb5 ff0 /oi0 dxw7b/c rx35 -xfu;va force of 10 newtons can be combine to form a resultant with 3/l 7wdx5vfgcroib00wxf fx-;/5bk u a magnitude of which of the following

  10.06: Which of the followifeulr78 d.xg:9h; uvn1 4eonmng statements is most closely associated with Newton’s Third Law ofnur4m e .1hfdxo97v;l8 e: ung Motion?

  95.06: The reaction force does not cancel the action forc 2*:z1liqi vkse because:

  14.14: A box rests on the floor of an elevator. The elevator is acc )wj(ie9.gpcr elerating upward. Which one of the following choices best represents the Newton’s Third Law pair force cip.r9wj) e( gto the gravitational force acting on the box by the Earth?

  15.15: A skydiver falls downward through the air with constant speed95ole,ee2ai a. Which one of the fol,a9oae5 lei2elowing choices correctly describes 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 with a speed of 351 06n4jngkmay3ru 5v p pw-ax* m/s. The batterswings and hits the ball. The magnitude of the f g-ny5m16x*vwr4aju0 k3 appnorce that the ball exerts on the bat is always

  11.13: A physics book sits at rest on a table. On top of the 6gpxb 5v;opq 4kx4,gbbook 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 x bbq ,5446pv ;gpxogktable exerts on the book?

  05.06: The students in a Physics I class were in lab conducting an experiment gbu :x( sm9+;a(90nqexbs .se: ewdxbrelated to Newton's Second Law. The collected data were displayed on the graph at the right. From this graph, what conclusions can the student((qx+9eb bs :ud xe0.a9 w; nebxgssm:s make?

  99.03: If the net force on an object were doubled while at the same time theetb-oh saa8k9.x,/ atb)dg 1x mass of the object was halved,then the acceleration of the obj x- et8hgb.oak t1ada/bs9),xect is

  96.15: A car whose mass is 1500 kg is accelerated uniforg jy 6w;ke0i4zmly from rest to a speed of 20 m/s in 10s. The magnitude of theiz0gjw 6k e;4y net force accelerating the car is:

  99.05: A tractor-trailer truck ig ,+g -7vamv(u q(pcres traveling down the road. The mass of the trailer is 4 times the mass of the tractor. If the tractor accelerates forward, tq vgg(v(rc m,a-7pu +ehe force that the trailer applies on the tractor is

  99.16: Which of the following principles best explains why large tractor- iel07u92j bzco9f-(h dbvs+ dtrailer trucks genefvi o2 hzeb +(dlu 7s9b-d0jc9rally accelerate much more slowly that automobiles?

  99.19: A 50 kilogram skater at rest on a frictionless rink throw,j c;;lawpz n,2;k bsqs a 2 kilogram ball, giving the ball a velocity of 10.0 m/s. Which pzb a; sc2w;;,,kqnlj statement describes the subsequent motion?

  00.13: An object nea-v0 lqsjb gt.(r the surface of the earth with a weight of 100 newtons is accelera0.sltqv- ( gbjted 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 constant forcee q1c0u rs /fv6mvtt(pr9fzb. z-c)6g of 2400 Nf9mr0g6tb1evs v.z ( rcq6puzft c /-). What is the speed of the car 8.0 s after beginning?

  98.32: A 3.0-kg block 6;ta d8 if.h-bv/fsj).stn(e4m whuswith initial speed 4.0 m/s slides across a rough horizontal floor before coming to rest. The frictional force acting on the block is 3.0 N. How far does the block slide before com s mtas.- vt)suj4;nffb.dh(i /w8he6ing to rest?

  95.38: A block with initial velocity 4.0 m/s slides 8.0 m across a roun v6l;e kmg jtr3+/ev:gh horizontalt6g v ;m:re+ 3vknlje/ floor before coming to rest. The coefficient of friction is:

  09.21: A 20.0 kg box remains at rest on a horizontal surf 9o.kzierhd/hpf/y x 5,:u bxzj5:k* face while a person pushes directly to the r .hxj, bp: ir/yz5hk/z*u:kxfo d95feight on the 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/s acce8lmljvrx- gvio ;(9 *blerates uniformly to rest on a horizontal surface. The block travels a dim 9vx-v8rijol* ;glb (stance 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 patch of ice at a speed v8rrbl 5sggts0v c5a; a.w 0pv2 ld8f5w with its brakes locked. It the l2vbsc50spfr vag0l d5ga;w.85t8rwn 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 mass of 2m, it would have skidded a distance of

  00.22: A car of mass m slides across a patch of ice at alih; 04:,mmf zwjog3z speed v with its brakes locked. It t: i4jo 0 gz,zm;lmw3hfhen 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 slamming on the v9-q;:mdn9v uthr:nqwn*l4fn 0. bh6vc:lj pcar's brakes and h*bvt;:n- j rlcwvv: qqh .m0d4u96nn:pfl9nskidding to a stop. How far would the car have skidded if it had been traveling twice as fast?

  99.39: The driver of an automobilxpu kr93 ct; 2 ,05xx6,o8ckbzd nkvnle must carefully control each of the following devices. Which of these devices can cause an acceleratiour k x3c90v;,58zxncpokn tb6,2xkdl n in a moving car?
(1) the break pedal ( 2) the gas pedal ( 3) the steering wheel

  00.25: The net force on a rocket with a weight of ej s57j*;.kf zv7snjwm7s4h b15000 newtons is 24000 newtons. Ab47ssnjszev k ;7bj.j 7w5hf*mout 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 person ca; q( igq21k;4*ka x-fqk)cftuvh *s- qzmsh;r lled 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 lart f4rsfhvi-g1a;-qs*( qq ;k;*)kkmhz u xcq2 ge 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 belowt x5(mc7,,+z d fyxsba shows three roller coaster tracks of equal length. Assuy,z7 dx b(f tac,mx+s5me that 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 be traveling the fastest at the finish?

  02.28: The diagram below sh(wvy4la d95 sw:vn my(ows three roller coaster tracks of equal length. Assume that on all tracks the ro mv9w(dsny al:5w v(y4ller 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 frictionlessp6hsu ( q7 gt8vf0sc:sly along the curved track from point 6gqu08 tf:v7 ssscp (hA to point C under the 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 y+hp0 4 npj:g+ash)sw the floor by a rope which makes an angle of 300 h pn sgws+0p:y)+a4hj 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 shown in the diagram?

  04.40: A 6.0 kg block initi*78hfoy o;4g39go2yr oexi u pally at 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 frioyyoex2h4og9f3p*7go ui8 r ; ction 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 mowerx32nje+xz*phuao.els cq/ .rj 0 :5 nt across a horizontal patch of grass with a constanjoxce325:te/xzau p + rnq0h s .l*j.nt 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 CORRECT?

  06.14: A book leans against a t2)gnn 5zzdb)crate on a table. Neither is moving. Which of the following statements concerning this situation )n2nz)5 zdg btis CORRECT?

  06.15: A crate of toys rjzp ;1.+ 95 iftjwnmnmemains at rest on a sleigh as the sleigh is pulled up a hill with an increasing speed. The crate is not fastened down to t9mjwzn+ jn tfi 5p.m;1he sleigh. What force is responsible for the crate’s increase in speedup the hill?