99.36: What happens to the inerti*j,s.x2,x1)uvz qer k ,tcqa xa of an object when its velocity is doubled?

  02.14: An intrinsic property of matter is one that does not depend on the quantir6ockm;xe r4j0 8f : 2vam9luity of matter present. Which of the following properties is NOi0rx82; ue mfj9a l4kmo vr6:cT an intrinsic property?

  04.16: A 20 kg boulder rests on la; (x rh42z xfkuvar n1;rl99the surface of the Earth. Assume the Earth has mass2n;xraf9l4h u19xz;rrl vak( $5.98 \times 10^{24} \; kg$ 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 surf(h dy841/kl 6 f(t vmg9al abkpcy91wsace of the Earth. What is the magnitude of the gravitational force acting on the earth bywy9hd/68tallkp cg(yk4m9b1 a (v sf1 the sphere? The Earth mass is $5.98 \times 10^{24} \; kg$ .

  00.09: Is it possible for an object’s velocity ltt6e eu ol:1f *wxwibqo) g)7a2b4q9ov-(ivto increase while its acceleration decreta)w:ve -tolx6u(g i7lq)qi 1 wob92bf*o4veases?

  00.11: A certain partic8 vm cozrwx8d3 t4-pu+ /jrzc8un;y0q le undergoes erratic motion. At every point in its motion, the directioznr z-0v 3dc oqcj8 muwtx/;8y48ru+p n of the particle’s momentum is ALWAYS

  17.14: A block is suspended in the air at the end op kcr mjzmu3gm0:o 6,)6sio,vf 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 i,6coom,mm s0 6rkgpz v)3 j:ufollowing 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 situatim/ 2 thrhn*li8ons is the net force constantly zero on the objecrm*/t hi2hln 8t?

  13.28: An object is in free fall close to the ground. pv phh2*:5gwprl1wh uy2 6ra6A 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 acceleration is a and the magnitude of the acceleration from gravity 2p62p6g *:1hvrlaw up5h hywris g.

  98.03: An object in equilibrium nd cllys:w(jdp +):;4klvbo 9 has three forces, F1 of 30 N, F2 of 50 N, and F3 o:n dd :yjsk+(ollvw b;p9l 4)cf 70 N, acting on it. The magnitude of the resultant ofF1 and F2 is

  01.07: A force of 6 Newtok,ngh hd6ab ,e+ )-bs--qosgens and a force of 10 newtons can be combine to form a resultant with a magnitude of whichnkhb e-s-g)d+6 -oah,gqs,be of the following

  10.06: Which of the followumfn8r;ry,p 0uwo1 0t ing statements is most closely associated with Newton’s ;tr u,nfu8p01owmr0y Third Law of Motion?

  95.06: The reaction force does not cancel the action force a *:vpezawlilk6ba a+58pb; .because:

  14.14: A box rests on the floor of an elevator. The elevnbz8h,98rxc b* -gsq3j tlb.uator is accelerating upward. Which one of the following choices best represents the Newton’s Third Law pair fb-jb93hug,xq8*bnlrt .z 8sc orce to the gravitational force acting on the box by the Earth?

  15.15: A skydiver falls downward through tehk) o e a3k/6uq:0xzehe air with constant speed. Which one of the following choices correctly describes the Newton’s Third Law pair force to the air resistance :xz3 uqekk)a eoe/0h6acting on the skydiver during the fall?

  06.08: A baseball is thrown by a pitcher with a speed of 35 /qh9);iejcybxhdq -tv8+ f n:kq 7ul 7b8do+wm/s. The batterswings and hits8:w7bu hc-xkeb7 +vq+ )dqdj/yfi;hl 9o n8tq 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,x; qb, mjzkx6fa.f* m table. On top of the book is a calculator, also at rest. Which one of the following choices is t f ,*jxa6;bzmmk q,fx.he 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 labs yxz/6 -gl2mt conducting an experiment related to Newton's Se2tlm/gsz6y - xcond Law. The collected data were displayed 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 wle;unhsf;f5- hile at the same time the mass of the object was halved,thhsn-u5 ; lfef;en the acceleration of the object is

  96.15: A car whose mass is 1500 kg is accelerated uniformly from rest to a speedg sgy46zj;cic*tc w2 + of 20 m/s in 10s. The magnitude of the net force accelerating the cargzsi gcct2c6+w*y4j; is:

  99.05: A tractor-trailer trlt vz9 y-y 0rscp15x0ruck is traveling down the road. The mass of the trailer is 4 times the mass r l59yz-t0ysc rp1x0vof the tractor. If the tractor accelerates forward, the force that the trailer applies on the tractor is

  99.16: Which of the following princi mnm0 ouki*ho;cyowu+0nbba..8u 7q 3ples best explains why large tractor-trailer trucks geneou* 7ni3k+n abmy0mbqw.cohu;o . 8u0rally accelerate much more slowly that automobiles?

  99.19: A 50 kilogram skater at rest on a frictionless rink throws a 2 kilogra+uhc xv 6e 1b*5k-*0ipol nc3u w6bmudu5 (pbtm ballv30-w+nt 6pp1 * cxe *5ku5ouu6 (cdbm bibuhl, giving the ball a velocity of 10.0 m/s. Which statement describes the subsequent motion?

  00.13: An object near the surface of the k(ud)x,eps 81 (vbfpirz6xrw 9 0,jxjearth with a weight of 100 newtons is accelerated at )fpsw8x 1j(bj ixp6vux,rz 9(rek ,0 d$4\;m/s^{2}$ . What is the net force on the object?

  98.25: A car whose mass is 1200 kg is accelerated from rest by a co: r)s2rj.hgas nstant force of 2400 r)h ja: 2srg.sN. What is the speed of the car 8.0 s after beginning?

  98.32: A 3.0-kg block with initial speed 4.0 m/s ayukvn,2v+ kowgs. o-n *cva xc9)o 60slides across a rough horizontal floor before coming to rest. The frictional force acting on the block is 3.0 N.kac9gosk, )y.o vu2+ a*wov6v-n 0cnx 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 horvi sep v;.r+dh tg(i a.l):k*rizontal floor before coming to rest. The coefficient of fvi;d:tp(i).sg ar v+el.h k*r riction is:

  09.21: A 20.0 kg box remains atg,1wdsuzdcw8 m5n- h 9 rest on a horizontal surface while a person pushesdg8-cs9w1n wd,m u hz5 directly to the right 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 accelerates uniformly to a e78 4neej5shrest on a horizontal surfa54h8jea esen 7ce. 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 block?

  00.21: A car of mass m slides across a patch of ice at a speed v with its m-; cb+bwyyl.brakes locked. It then hits dry pavement and skids to a stop in a disbby +l;cw-m.y tanced. 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 f isn6ff1gk l2t 1),gt5 x.ffy ;i5wp:sgc7jpv with its brakes locked. It then hits dry pavement and skids to a stop in a distanced. Thex1 2). f17sfcli stt6k5:y, nfip5gg gjf;wpf 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 amdo lvpquz;4-/dp6c 3s:a; aslamming on the car's brakes and skidding to a stop. How far would the car have skidded if it had bdl4;sp;oaq maud 3-c z:p6a/ veen traveling twice as fast?

  99.39: The driver of an automobile must carefully control each of th /9ny:k9vm:hzmlk 5sme following devices. Which of thm9z5lk/k hnm: :9smvyese 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 weig 9,qx oipzu-,,ihc,r kht of 15000 newtons is 24000 newtons. About 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 takq,k,h,9c -xio rzpiu ,eoff?

  07.21: A box slides to the right5y71 3 jxvhio dk3 ;qah*i,dlb across a horizontal floor. A person called Ted exerts a force T3xk37q yho id,5a;lj bvd*hi1 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 roleqb6+*b*5tndeje lmd g*6 jr eh.cb15 ,)krfpler coaster tracks of equal length. Assume that on all tracks the roller coaster carts start from rest ae6 1mqhrpdfb ,b.e*gc+ t)l* rj655dnk j*eeb t 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 shows three roller coaster tracks of l9u y,c+nq1 8 zagfq1aequal length. Assume that on all tracks the roller coaster carts start from rest19zgyn +lq18f, ac aqu 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 frictionlessly ai r shb,23hv6veqr6r*long the curved track from point A to point C under the influence of gravity. What would be the direction of the cart's acceleration*26i3 v hhqsvr,6 ebrr at point

  02.40: A box with a mass of 50 kg is draggedjra))sc.iiox-n+ (s df5c bo3 across the floor by a rope which makes an angle of 300 with the horizontal. Which of the following would be closest to the coob5ss n)j i(foci)-3 dc+r.xaefficient 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 rest is pushed a03xsg p r0+cjfeh3* b70hgnd ggainst a wall by a 100 N force a+ epxh h3ng7sjc0 r300f *dggbs 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 second?

  05.10: A homeowner pushesr5,0m6 r0q -jt+s2ytvhxx d ng a lawn mower across a horizontal patch of grass with axn60str,x 2hj0r g-vyq d5 mt+ 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 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 moving3gg . c/doth- m8,gyyp. Which of the following statements concerning this situation is CORRECT?y/ytg3gdg8mh ,. oc- p

  06.15: A crate of toys remains atcig 40xb wv l+17v*dxv yykv.8 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 responsible for the crate’s increase in speedup the hilx vv*4y. i08xl7cv1 wd+kbvyg l?