99.36: What happens to the inertia of an objeaps 0zu2u 6f5kct when its velocity is doubled?

  02.14: An intrinsic property of matter is one that d(/lr 0xs.2o yk;lxg8eyrp- bloes not depend on the quantity of matter present. Which of the following properties is NOT an intri xs0 gepl(k yly-r82.obx; r/lnsic property?

  04.16: A 20 kg boulder rests on the surface of the Earth. Assume the Earth h89pbz gibrq 94 ty3c( hw g*(e,t/ixwnas mass *y,gi nwb9 tih4gw/rcb pz98e(3(t qx $5.98 \times 10^{24} \; kg$ 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 spherkb98mk f3ik1i6hd d ltev 1:h/r;k d7me is in free fall near the surface of the Earth. What is the magnitude of /tfd7bmhk ; kkkdhv11elm3:86dir i9the 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 an 2 )gltti 6e ,9yvl/nqvobject’s velocity to increase while its acceleration decreaslg69/)tv,ve2 ilyqntes?

  00.11: A certain particle undergoes erratic motion. At5h9juglqd f7qfq/up :bq ; 8/mj9:g . pdut2vd every point in its motion, the direction of the particle’s momentum is ALW v fpuq :8lfdhqujg/97pjq d :/qm9tu5dg2.;bAYS

  17.14: A block is suspended in the vu g2 h,0yw8krair at the end 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 Law pair force to,2gw80v yhkur the force of the string on the block?

  07.18: In which one of the following situations is the neu onemw bg+5 * ehjme uv5q;xi o10jm*0bjq2;;t force constantly zerohjw*q;m+u 2gex;;e 0 onvb5o5m 0m*bej 1qj ui on the object?

  13.28: An object is in free fall c-v c(t 7v+71zuoimk hrlose to the 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 phu irkm cv(+ v71z7t-oerson? 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, 46cv x3ydt ypxt:cc,, 7s3tm ld0jm7band F3 of 70 N, acting on it. The magnitude of the resu,,d3pt 0 yc bstd7m: x7 vc34jcymt6lxltant ofF1 and F2 is

  01.07: A force of 6 Newtons as; :ggkz (odw4nd a force of 10 newtons can be combine to form a resultant with a magnitude of which of the folld;g: wzg ks4o(owing

  10.06: Which of the following statements is most closely associated with Newtono)r8(gzz1v qx’s Thirdq ozv8x (1r)zg Law of Motion?

  95.06: The reaction force does not cancel the action force becausk yad-ww9kh( 27l b-u4*w rolb,(hxhke:

  14.14: A box rests on the floor of an elevator. The elevator is acd xbon4/dlp(ero,y 7 / 2qy,nocelerating upward. Which one of the following choices best represents the Newton’s Third Law pair force to the gravitational force ndo,y4r2dq,x7poe ln (oy//bacting on the box by the Earth?

  15.15: A skydiver falls downwarq v.5 9vh67eeh5kifc yd 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 thef6yehh iqvk.7955c e v skydiver during the fall?

  06.08: A baseball is thrown by a pitcher with a s(v /5w- krjwxl ht-amlyc6.np8j64 ucpeed of 35 m/s. The batterswings and hits the ball. The magnitude of the force that the ball exerts on the batym-cc(.h-u6 j6k4n 8l lrwv5 j/w xtpa is always

  11.13: A physics book sits at mpond-85ym60/* bt-s1rz jk qjrst.s rest on a table. On top of the book is a calculator, also at rest. Which one of y5or/t 8 z-m ptd*s6ssb1q njm- kj.0rthe following choices is the Newton’s Third Law pair force to the force that the table exerts on the book?

  05.06: The students i56upb7f u uvh4n a Physics I class were in lab conducting an experiment related to Newton's Second Law. The collected data were displayed on the graph at th5uf 7bh4uu6 vpe right. From this graph, what conclusions can the students make?

  99.03: If the net force on anow5jf6ww fd26i, sn41el1 4slen:tj/ hl jps 5 object were doubled while at the same time the mass of the obswo 5 dsfsf nt441jjl ll 1w6,h56pne/ew2:ijject was halved,then the acceleration of the object is

  96.15: A car whose ma6t76h j.gn 86dqsrq voss is 1500 kg is accelerated uniformly from rest to a speed of 20 m/s in 10s. The magnitude of the net force acceltnd.j 6gqosq8 hv67 6rerating the car is:

  99.05: A tractor-trailer truck is traveling down the road. The mass of thb/k nz4 z+y/4bs. pjbw y3 gl23jlj2fhe trailer is 4 times the mass of the tractor. If the tractor accelera2 lj 4bybhjk.32zg 4z f/+wnp3/byls jtes forward, the force that the trailer applies on the tractor is

  99.16: Which of the followiolp-y:s+ zj*c:+l:v (t oeaktng principles best explains why large tractor-trailer tpo:j: zec:a-+s *kltv (yol+trucks generally accelerate much more slowly that automobiles?

  99.19: A 50 kilogram skater at rest on a frictionless rink throws a5 io; buf-ukui:k,3sf 2 kilogram ball, giving the ball a velocity of 10.0 m/s. Which statement describes the subsefkuo, k53s-;iif:ub u quent motion?

  00.13: An object near thekhio) wmlrfo2,(;l-nx h.t)n surface of the earth with a weight of 100 newtons is accelerate).;oi)h- w( n2r,llm xh nftkod 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 constan07d2ep3d jc c vp0 e.fvu+ cf8eqakf;9t force ofqeace7 3fcd2fj fe; pvv90 0d.c+p8uk 2400 N. What is the speed of the car 8.0 s after beginning?

  98.32: A 3.0-kg block wi5lb,4w-jh+ yfuut49b-b jn cm th initial speed 4.0 m/s slides across a rough horizontal floor befob b9 fnu+4l--ubcj t4,5hmwjyre 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 slides 8.0 m across a rough 5;jw(fvwv ey1 jo4kc(horizontal floor before coming vfej(y4 kwv5jo;w1( cto rest. The coefficient of friction is:

  09.21: A 20.0 kg box remains at rest on aumh 80 /safzg6 horizontal surface while a person pushes directly to the right on the box with a force of 60N. The coefficient ofa0smg/68 zfu h 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 accelerates uniformly to rest on *jdz g 80t7wa7ztta*la horizontal surface. The block travels a distance of 12.0 m dt 7 ja0gta7*ldt8*zwzuring 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 acnpm: w2c7so/lz k8o6igav re-k 2/d3dross a patch of ice at a speed v with its brakes locked. It then hits dry paveme8kz3nwlivr6as pd2d:gc okm 7e-o//2nt 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 h:p-1zx4 /bctf+ lenpice at a speed v with its brakes locked. It then hits dry pavement and sk:+nf lpp4et/-1 xbz hcids 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 car's br0fl b 2s4gi+e tzg9q-.w:ufun akes and skidding to a stop. How far would the car have skidded i:s w+ltq-ige0bf 9 unu.4z2 fgf it had been traveling twice as fast?

  99.39: The driver of an automobile must carefully control each of the following h /8cu-hkq (kjw i6;bkdevices. Which6h(;8 hjb-ck qw kiu/k 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 on a rocket with a weight o(j:mrsls:p*0mh , mogf 15000 newtons is 24000 newtons. Abjs g rh:l(o *mp:,smm0out 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 perst9uts kw sgqm) r+;54von called Ted exerr9)kgt uts 5sw mq4;v+ts a force T to the right 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 cef0(1qs.elvh 8 otvs (y 7yd(moaster tracks of equal length. Assume that on all tracks the roller coaster carts start from rest at the same elevation and moves frictionlessly overy(7(tl 0msve1yvsqof8hd(. e 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 tracks of equal length bdxt )d175mzer 5v:shw4 n0gq. Assume that on all tracks the roller coaster carts start from rest at the same elevation and moves frictionlessly over the tracks to the finish0nxzgv7w5:b)t drhsq 5e 14dm.
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 6b vi5a1q e3aufrictionlessly along the curved track from point A to point C under the influ a5 v13aeqbi6uence of gravity. What would be the direction of the cart's acceleration at point

  02.40: A box with a mass of 5l( t4;q*k fk(kgfo dx*0 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 co(g *f*k( tkfq lodx;k4nstant 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 by a 100 N fv e1g+bgbv+ .qorce as shown. Thecoefficient+bvb gvq.+eg 1 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 second?

  05.10: A homeowner pushqzbzhmony) 2h6q) 5z(es a lawn mower 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 o6)mh hb 2o)qyqn (z5zzf the following 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 movieut eheq1xr2 v.;ao ;-:.zeedng. Which of the following statements concerning this sitd.eate; x:e1v 2ee -hr;o.uqz uation is CORRECT?

  06.15: A crate of toys remains at rest on a sleigh as the sleigh is y ac-u (oi(5qcpulled 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 the hi5au(qc ( -yiocll?