99.36: What happens to the inertia of an object when its velocity is doubydv6 (-dsn+zce;bn mkf7y- 4lled?

  02.14: An intrinsic property of mat2e5xlbh q ct y2;si-n xv0.ix(ter is one that does not depend on the quantity of matter present. Which of the following properties is NOT an intrinsic propev. qx2yl5hi x;te( sxbi2-0cnrty?

  04.16: A 20 kg boulder res mxqu8epuxuy d- hw85.7m16y tts on the surface of the Earth. Assume the Earth has m7xmm uu.p 6uwyhd8 e5y x-qt18ass $5.98 \times 10^{24} \; kg$ 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 ys uqm17* 1i z/mqesf1near the surface of the Earth. What is the magnitude of the gravitasfsiy qmzque1m*7 1/1tional 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 vel8 3sqc.olkw 7i4a sm/5lgd op)ocity to increase while its acceleration decreasl g.7q3lds5o m/ i8oasp w4ck)es?

  00.11: A certain particle undergoes erratic motiohc2juja i8o hdg)(mm/m n7+(jn. At every point in its motion, the direction of theam)nj7m +u2(mi/( go c8jhdhj particle’s momentum is ALWAYS

  17.14: A block is suspended in the air at the end of a string 2voeal9p t6gxxat a:q2* (dvlm :t72 fheld 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 for 2ltpa avdoma:gq(7t9:xl*x6e t2vf2ce to the force of the string on the block?

  07.18: In which one of the followintz0,jty)x g ;gvtmc9(g situations is the net force constantly zero on thectj 9;ygz, vtm x(0tg) object?

  13.28: An object is in free fallyrl)659axv 1 vkpn4 njo7td h3 close to the ground. A person intervenes and slows the object uniformly to rest. Whicjo 5lkd 63vn)1yvhtn 4pxa79rh 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 the acceleration from gravity is g.

  98.03: An object in equilibrium has 6829un4mujprnbt sbw v b, ;8xthree forces, F1 of 30 N, F2 of 50 N, and F3 of 70 N, acting on it. The magnitude ou8 , u;wm6nrpb4s vb9t82jxnbf the resultant ofF1 and F2 is

  01.07: A force of 6 Newtons and a force of 10 nej, ojwbk;*. t te0g:iuwtons can be combine to form a resultant bk0;:* otjj., ewutgiwith a magnitude of which of the following

  10.06: Which of the following statements is most closely as m z3mg+:+ wrciso9p+vsociated with Newton’mcmw+ grs+p+ z:3i 9vos Third Law of Motion?

  95.06: The reaction force does not cancel the action force beg.u 16uoq6o cmd wjsqgi:p1:7cause:

  14.14: A box rests on the floor of an elepy8f 47* eei)dkpp4f avator. The elevator is accelerating upward. Which one of the following choices best represents the Newton’s Third Law pair force to the *e4 487pfe ppyi )kdafgravitational force acting on the box by the Earth?

  15.15: A skydiver falls downward throughu dxjq;6nv-vfmi)(8j zv,5oh 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 skydiver during the fal)vdz j q5i8fv,(o xn-u6jh m;vl?

  06.08: A baseball is thrown by a pitcher with a speed of 35 m/s. The batterdyf( 6* kpkwcyuqqu x(e8/ *q*swings anp6dk yxy q8cq* *ewuq( u(*kf/d hits the ball. The magnitude of the force that the ball exerts on the bat is always

  11.13: A physics book sits at rest on a table. On top of the bo h1c1jux.kv 6f:bw/nmok is a calculator, also at rest. Which one of the following c/jn16bm : .kxh1 cwvufhoices 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 labxv)o5kt a l nt.ry/.*u conducting an experiment related to Newton's Second Law. The collected data were displayed on the graph at the right. From this graph, what conclusions can the5k.xvytn* /tal.uro ) students make?

  99.03: If the net force on an orwsg ,g7lru ,:z ,nza0bject were doubled while at the same time the mass of the objewl0, rg,n,u a:7sg zzrct was halved,then the acceleration of the object is

  96.15: A car whose mass is 1500 kg2okzzbh8n7j.k7c r a: is accelerated uniformly from rest to a speed of 20 m/s in 10s. The magnitudeaz:z 7. co8knrjh7kb 2 of the net force accelerating the car is:

  99.05: A tractor-trailer truck is traveling down the rox/*3m ,s : vq8shfxb*pn0yf ltyk31pfad. The mass of the trailer is 4 times the mass of the tractor. If the tractor accelerates forward, the force that the txf30f,3yh xt splp/1kmqb: v n*fsy*8railer applies on the tractor is

  99.16: Which of the following principles best explaock sl 8z16hah- ic/zc nz34q5ins why large tractor-trailer trucks generally accelerate much more slowly that a3zl1 o6zk8zqsh -c4c/iac n 5hutomobiles?

  99.19: A 50 kilogram skater at rest on a frictionless rinkw1ac1e dqh vbfp -+ki:6o+4ab throws a 2 kilogram ball, giving the ball a velocity of 10.0 m/s. Which stateme:c 6 qabeakf 4d-+b+ivpwh11o nt describes the subsequent motion?

  00.13: An object near the surface of the earth with a weight of 100 newtons, i2e nw8rb-8lg0gku n5w: woo is accelewrg 5:8ugn02wio k,-ewno l8brated 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 buut1k hn3giyg6 7/p4 cy a constant force of 2400 N. What is the speed of the car 8.0 s 7g/tc3 1nyuu pgkih46 after beginning?

  98.32: A 3.0-kg block with initial speed 4.0 m/s slides across a rough horizonta clqq3fg de k*ww-h7;,5b8/xu5iqsual floor before coming to rest. The frictional force acting on th,w8lqk dsu3 xq-eh/75ibw*gf5 a;uc qe 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 mz rbf9)wa ub0)3;yzz rough horizontal floor before coming to rest. The coeffiz;)3 fzb )mrz 9ywb0uacient of friction is:

  09.21: A 20.0 kg box remains at rest on a horizontal surface wh k:iqr1 ++rcev0 b)dz .5vvo 0cip+iauile a person pushes directly to the right c v:)brd+5qze c+ivo0i.a+1 0rvk upion 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 accelerates uniformly to rest on )lkk,:, x bq;m e lzhryopd.;;a horizontal surface. The block travels a distance 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;lrk.hz x k, o;bmpeq :d)l;y, block?

  00.21: A car of mass m slides across a patch o-o +creoo 7r k:fk hfnal0w,):f 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 dry ro:carn-f e 7l0 :h,kkworoo)f+ad 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 xu (hmqc 2h 06xy)k6k:e)gxi8cwdvg8 brakes locked. It then hits dry paxx: 2g6k8egqmkcx(iu )h0h v 8ycd6 w)vement 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 5hv+ 3:esdkkaslamming on the car's brakes and skidding to a stop. How far would the car have kvsh+5:3ekd a skidded if it had been traveling twice as fast?

  99.39: The driver of an automobile must carefully control each of the followintzf3; i )wkcsx j6o(.zg3y8k zwvi/1xg devices. Which of these devices can cause an acceleration in a moving cji36sfk3 ( z tw.;g 8cwyx/iv1xkzz o)ar?
(1) the break pedal ( 2) the gas pedal ( 3) the steering wheel

  00.25: The net force on a rocket with a weighynv0( h6 zskx(-k5 0iip qre1yt of 15000 newtons is 24000 newtons. About how mucr 0p0 15s vi-(en(k6 qzkiyhyxh 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 floovp8, 7yy) 4k -domuvejr. A person called Ted exerts a force T to vje) 4,y-7dmk o8 ypvuthe 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 ron*k-rc azsqaxcz : .t+*u 13uoller coaster tracks of equal length. Assume that on all tracks the roller coaster carts start from rest at the same elevation and moves frictionlesslycrc:sta.1kxz- z** oau qnu3+ 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 trawj6 vo9yh 0.decks of equal length. Assume that on all tracks the roller coaster carts start from rest at the same elevation and moves friction9.w6ovyj hde0lessly 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 ca , yk*hwx(t2oertrolls frictionlessly along the curved track from point A to point C under the influenh t xwk2oy(*,ece 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 the fl0fvw,j5h gn)1p6dp xioor 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 shown in the diaf h)1xpni ,g05pdvwj6gram?

  04.40: A 6.0 kg block initially at rest is pushes7ta7y q8e u-.yxth /30nwqf bd 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 on the block after a time of 1 7n b 80we-xqqhf. t3s /yyaut7second?

  05.10: A homeowner pushes a lawn mower across a horizontal patch of grass wik/b d2exm:k 6ith 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 relationk 2iek:xd 6mb/s among the various force magnitudes, W, f, N, P is CORRECT?

  06.14: A book leans a5k: w4a9 xeqfjgainst a crate on a table. Neither is moving. Which of the following sjk59 wq:4 xafetatements concerning this situation is CORRECT?

  06.15: A crate of toys remains at rest on a sleigh as the sleigh is pcf rw el6* ud*mt-7mq6ulled 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 speedup6q* tlfu6wdcme7rm * - the hill?