99.36: What happens to the inertia of an object when its velocity f8p efib0eiab i5p:63i4uw;jis doubled?

  02.14: An intrinsic property of matter is one that dodb v 6e6:k)prs ):sorges not depend on the quantit6p:r 6b))seogkv: rdsy of matter present. Which of the following properties is NOT an intrinsic property?

  04.16: A 20 kg boulder rests on td6n,vpqwaecpwg6:n -p5f 6 0lhe surface of the Earth. Assume the Earth has mass 6pqap ,6fnv- 6wwecp:d5gn0l $5.98 \times 10^{24} \; kg$ 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 falg5 +h+ 6pklvpj;nbvlxyy+f:/ f-7cj ql near the surface of the Earth. What is the m5k;jvn7+l y :6y+f/qp-b gh+lxcj fvpagnitude of the gravitational force acting on the earth by the sphere? The Earth mass is $5.98 \times 10^{24} \; kg$ .

  00.09: Is it possible for ani1kehr .7j s4 l l1p)wror4h+w object’s velocity to increase while its acceleration decr .oj 7pr+4e1iw4)1rwhk hlsrleases?

  00.11: A certain particle undergj4/pn/)kfyuq6fa 2aez j6zmkbqm -d4ce w (75oes erratic motion. At every point in its motion, the direction of the particle’s momentum i5yfq 2mz 4 /jjnfcba k(uamp 4/ kw7)deez-6q6s ALWAYS

  17.14: A block is suspended in the air at the r;kmtsp m m;x(07f9 x+lbdkd 6end 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 one of the following choices correctly identifies the Newton’s Third Ls6x0mdm 7pl;(rmdbtkx9k+;faw pair force to the force of the string on the block?

  07.18: In which one of the following situations is y v)g8zdl:*ld5glfncs cs+25the net force constantly zero on the objc)sfgl5dln5 8 czgyl +2*:dsvect?

  13.28: An object is in free fall close to tha k3ypy3 su-5de 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 yka3s5 -yu 3dpperson? 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 has three forces, F1 of 30 N, F2 of 50 N, and F3h (3wije8j zccf4ie n4j-4*o m of 70 N, acting on it. The magnitude of tcc *je-4 i3hin4mzw j84 ejfo(he resultant ofF1 and F2 is

  01.07: A force of 6 Newtons and a forc qs+o,2)dq oxzss6- rie of 10 newtons can be combine to form a resdi,rx qqs)6 o+oss z-2ultant with a magnitude of which of the following

  10.06: Which of the following statements is most closely ass0 en/0vjwjx a n8ea:5k9n cdm)ociated with Newton’s Third Law of 0 a0xed98)nacj 5mn:kn /wvej Motion?

  95.06: The reaction force does not cancel the actoe vk fp10t8vsbhcxx:37 a*f,ion force because:

  14.14: A box rests on the floog plww *re (28qk )eh8mcu*0; ffk-oapr of an elevator. The elevator is accelerating upward. Which one of the following choices best represents the Newton’s Third Law pair for )pcrmuqgw*8w- o elak2h(p*kf;f0e8ce to the gravitational force acting on the box by the Earth?

  15.15: A skydiver fallsr36 hyj- .wdo, vldu(z downward through 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 skydrw(olz6u3ddhy-. v,jiver during the fall?

  06.08: A baseball is thrown by a pit ,stcp332v s0k6pawuecher with a speed of 35 m/s. The batterswings and hits the ball. The magnitude of the force that thvs32pwpat,cu3e k6 0se ball exerts on the bat is always

  11.13: A physics book sits at rest on a table. On top of the book is a mx1(+y6mx*2vne3ql o wojnd1 calculator, also at rewv1 mjx*d(meqlxyn o3 o1+ n62st. Which one of the following choices is the 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 an exqasj06xoyp..m; 0re+-jnc(e kf pnxj37( kvvperiment related to Newton's Second Law. The collected data were displayed on the graph at the right. From this graph, what conclusions can tsa.yx7j03 q-.v6 jp( 0pnenj( k +mr;evfx cokhe students make?

  99.03: If the net force on an object were doubk. swt ku3y4pjao3k)+e x7x l1led while at the same time the mass of the object was halvexok14y)ka. j x3k uw +pslte73d,then the acceleration of the object is

  96.15: A car whose mass is 1500 kg1 oe,dn6tsf t r7mw(lo0a)ta aq5za)/ is accelerated uniformly from rest to a speed of 20 m/s in 10s. The mags1t /o a)056zatl (or dafqtn mwe7a),nitude of the net force accelerating the car is:

  99.05: A tractor-trailer truck is traveling down the road. The mass of the t1p2vgqqz*ektf,+k kv mfo i 5osy;f32+8mxx3railer is 4 times the mass of the tractor. If the tractor accelerates forward, the force that the trai1xfy*2v+vf, qo+3ik xpmg;fz qt5m 2s e8ko3kler applies on the tractor is

  99.16: Which of the following principles best explains why large tractor-tras7b yui)(zdxsqj .m4nc i3 +98*h eueuiler trucks generallnyx*c+ z8h47qeiess .udi9bum (j)3 uy accelerate much more slowly that automobiles?

  99.19: A 50 kilogram skater at rest oo(qkbn. as7rc*c 8zal :x*x7hn a frictionless rink throws a 2 kilogram ball, givka*bx8z hlq(sr*.7 :ocna c7xing the ball a velocity of 10.0 m/s. Which statement describes the subsequent motion?

  00.13: An object neaj4z-( 1vl eefvr the surface of the earth with a weight of 100 newtons is accelervvfz4l1- eej( ated at $4\;m/s^{2}$ . What is the net force on the object?

  98.25: A car whose mjq9k1.h1y9lli84ex2b uvp s b ass is 1200 kg is accelerated from rest by a constant force of 2400 N. What is the speed oe24llxuyb.i1 hb 9v8s9 pj1 kqf the car 8.0 s after beginning?

  98.32: A 3.0-kg block with initial speed 4.0 m/2ur yl;n z6nhzh ,x3 fzc002oes slides across a rough horizontal floorhe noz 22yfzru lxhnc060; ,3z before coming to rest. The 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 4.0 m/s slim fgf::k*wvf c5mdo0,des 8.0 m across a rough horizontal floor before coming to mof cgm , 5vwf:*:dkf0rest. The coefficient of friction is:

  09.21: A 20.0 kg box remains at rest on a horizontal s ui.;1nu*fwf7opaa;v urface while a person pushes directly to the r;* fo .iu va;n7auwf1pight 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 accelerats-zsh.y-gm 1 nu8pn ca3xp 1a7es uniformly to rest on a horizontal surface. The block travels a distance of 12.0 m d- c-sua1np8x .s3ymgh 7npza1uring 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 v wjf ;c4c(1nlp,s v 7xcwy9k wr*ith its brakes locked. It r7y,; 9vc p*f nwjk lx14c(cswthen 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 a speed v wv 1s0 4)ybxn2cim (iykith its brakes locked. It then hits dry pavement and skids to a stop in a distanced. The coefficientiy2k1is( )yxvnc4b m0 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* ,r5gen( ico+g)car-3w uvdx wf7f4ctb4- ux an emergency stop by slamming on the car's brakes and skidding to a stop. Hf c( ggafe3wnc-t5u 7 o)bv,+d*4xx-wrrui4cow 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 followin j zn kgp+-yv2s ggm:0lee,zf2s3a)r(g devices. Which of theseve3fryg 0g se )mks na,zplg2+- (jz:2 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 on a rocket with a tif,w1t5 8gon i/d .+(o5k;niqwvh ew weight of 15000 newtons is 24000 newtons. About how much time is k t/ 8,t;1+w5onnoi( ihifge.5wv wqdneeded 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 toiym)4h2hgy x gp dmt/ra 1w ;+z58jp;b the right across a horizontal floor. A person called Ted exerts a force T to the right on the box. A person called Mario exerts a force M to thr/hy+;m18 pd; h a gj)tx5gbiwyz4p2me 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 co7amcs b8r 7p;qem.ovwp 7p9e0a wh1b5aster 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 tracks to t;e 7ca 5amh7v9rmw7w b0sbop qep.8p 1he 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 eq e3oqw a4 hb6/tb( dqhjt32;noual length. Assume /jo 2 tqotbh(h6ew3n;43qd bathat 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 fric.lz:5g.s;b watr-z erebv*d7tionlessly along the curved track from point A to point C under the inflrl:g5zrvb*t ;eb-we a. 7.d szuence of gravity. What would be the direction of the cart's acceleration at point

  02.40: A box with a mas 0ij4kr(b )sass of 50 kg is dragged across the floor by a rope which makes an angle of 300 with the horizontal. Which of thijrskb)sa(0 4e 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 initially at re0a nr l7qj9(list is pushed against a wall by a 100 N force as shown. Thecoefficient of kinetic friction il9q ( lj0ar7nis 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 lawn mower across a hori)km(db/ tf .0dzmczz9 zontal patch of grass with a constant speed by applying a forcem fztcdd )bz9/.mkz( 0 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 againsa8f6jgeto*g-q ;h d1 ht a crate on a table. Neither is moving. Which of the following stateoe *g86q g;j hd1a-fhtments concerning this situation is CORRECT?

  06.15: A crate of toys remains v.hio9ovc:,yjst w 6+ at rest on a sleigh as the sleigh is pulled up a hill with an increasing speed. The crate is not fastened down to to9 oc+vt:., hvsw6j iyhe sleigh. What force is responsible for the crate’s increase in speedup the hill?