99.36: What happens to the inertia of an object wazbk73+t.j:- :m cmi pdkyk/ mhen its velocity is doubled?

  02.14: An intrinsic property of matter is one that does not depens2f i7w pr /)73v 5bch5nahrz91jndpzd on the quantity of matter present. Which of the following properties is NOT an intrinsic property3 i12rpv77rfch/z)p5j nna hws9zb d5 ?

  04.16: A 20 kg boulder rests on the surface u mo: + j.*e wchmt-ocq;fx/y5of the Earth. Assume the Earth has maseo*:fu ymx/o;+cc th-m. j5q ws $5.98 \times 10^{24} \; kg$ 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 surfacepl(a zu0qx9 4bich ny7(q6 f)j of the Earth. What is the magnitude of the gravitationau( bhz(40ylqnqa7 6 x )fpij9cl 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’ 4*ih6iqz,2eek zh5 djs velocity to increase while its acceleration decreases?qijhk4 *6 e,ezd2 h5zi

  00.11: A certain particle undergoes d.sm.vsp m j55erratic motion. At every point in its motion, the direction of the particle’s mm 5ds.vjm. ps5omentum is ALWAYS

  17.14: A block is suspended in the air at the end of a string c d lx*jr5z 9r) wh5a8naw9u4hheld by a person. The person pulls on the string uniformly accelerating the block upward fo4rxchaw5u)a zw jn *8ldh95r9r a short time. During this time, 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 following situations isx8kj. 6:mgr2z hiha )4 ;ouj1imy n0bw the net force constantly zero on the o6 ra.hjmzgiyu:1b024 hk) n m;o 8jwixbject?

  13.28: An object is in free fall close to the ground. A person intervenes and ews dfog ;k7v 77u9v7gslows 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 magnitud;f 7dkwg7s9o e77vuvge 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, F y:;6d n8pjnm*ec 4yt,i6lr 0*ra ghpt2 of 50 N, and F3 of 70 N, acting oyjr:cnt mn8 dp6* i,t4r*hg6 lp y0ae;n it. The magnitude of the resultant ofF1 and F2 is

  01.07: A force of 6 Newtons and a force of 10 new7u+ d5xczu.sgtons can be combine to form a resultant with a masc5 xzuu7+g.d gnitude of which of the following

  10.06: Which of the following statements is most closely associated 2sha)1y oferq3muvdirdz/ 2,b ,px 9 /with Newton’s Third Law of Mot aeud2rb/13d,mrsi9qxyo,fv/ 2h z p )ion?

  95.06: The reaction force does not cancel the ac1qb,d:6ird qbx0v -59p 2 ras-nx-/qlzdrgkation force because:

  14.14: A box rests on the floor of an elev nsz9 (s9 ybmi/fetdc yba0n4bc7)*i+ ator. The elevator is accelerating upward. Which one of the following choices best represents the Newton’s Third Lawbi)bbci/+a9sef9ymny7s0zdc( nt* 4 pair force to the gravitational force acting on the box by the Earth?

  15.15: A skydiver falls aku 7(igymf.dxbq4++ 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 skydiver during the falli7kq++xu( amb .yd f4g?

  06.08: A baseball is thrown by a pitcher with a speed s ) jwlyg60;qs-k q5k f2pm lv(qv7:dtof 35 m/s. The batterswings and hits the ball. The magnw:) ; qvlst2s qd5 7ky0kqj(6lgmpf-vitude of the force that the ball exerts on the bat is always

  11.13: A physics book sits at re*m h i/a*j a(u/z9unddst on a table. On top of the book is a calculator, also at rest. Which one of the following choices is the Newton’di9z m//d jau *hun(*as Third Law pair force to the force that the table exerts on the book?

  05.06: The students in a P*j0 la-em(k88kl zz ehhysics I class were in lab conducting an experiment related to Newton's Second Law. The collected data were displayed on the graph at the right. From this graph, what conclullz -hzk a8 ek*j0(em8sions can the students make?

  99.03: If the net force on an object were doubled;nz; 6g 6ub t,cw:tslr while at the same time the mass of the object was halved,then btzw6r;t; c,l:nugs 6 the acceleration of the object is

  96.15: A car whose mass is 1500,39(cmdyvi :vr +1;g glo:xtln eg dr. kg is accelerated uniformly from rest to a speed of 20 m/s in 10s. The magnitude of the netogl.(rgg::91x,n;v d 3 lmv+ yectrid force accelerating the car is:

  99.05: A tractor-trailer truck is traveling down the f zy6;rruw3x u9v +rh1road. The mass of the trailer is 4 times the mass of the tractor. If the tractor acceleratesuzu3rfw+9hr1 v 6xr;y forward, the force that the trailer applies on the tractor is

  99.16: Which of the following principles best explains 63bxs+p-aidp* 4 5v glra1 z8vi)tuxkwhy large tractor-trailer trucks gvrisz3t6i1u)g4px +8ba pa-dvl*kx 5 enerally accelerate much more slowly that automobiles?

  99.19: A 50 kilogram skater at rest on a frictionless rink throws a p is9lze7:d1r2 kilogram ball, givi1r zed:lp7 i9sng the ball a velocity of 10.0 m/s. Which statement describes the subsequent motion?

  00.13: An object near the surface of the earth with a wei gy,1se. fv,rdyyj 69sqvmq +1ght of 100 newtons is accelerateevy+s qv j.fyyrsm96gq1 d,1 ,d 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 f3wrjh5p)rn j3d e1:n*ok y rc.orce of 2400 N. What is the spkpnrr):jowc j* yedr1.33nh 5 eed of the car 8.0 s after beginning?

  98.32: A 3.0-kg block with initial speed 4.0 m/shxvh ,fwu : eqcj9;v9 1x1o*wh 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 coming to reow xuh1vce9x;j9h hv,1* :fqwst?

  95.38: A block with initial velocity 4.0 m/s slidexcibfsv.q3 , 8s 8.0 m across a rough horizontal floor before coming to rest. The coeff3x.qi v 8,cbsficient of friction is:

  09.21: A 20.0 kg box v-z,/nph*092+vnm njm bnj wr remains at rest on a horizontal surface while a person pushes directly towvhnmp,r+ b jmj*0-nv/2 n z9n 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 accelerat.ls 9,kdj*q b jed9vz1l pcm/8es uniformly to rest on a horizontal surface. The block travels a distance of 12.0 m during the slide. Which one of the following choices be9lkq zcde,vp9j8bjl *m1.ds / st represents the coefficient of kinetic friction between the surface and the block?

  00.21: A car of mass m slides across a patch 4 y y0vlvqh ya*n16 (lzle30vsof ice at a speed v with its brakes locked. It then hits dry pavv0l*6nvy0z sa y1 yhl4eq(3l 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 mass of 2m, it would have skidded a distance of

  00.22: A car of mass m slides.ee- ls3/9qvc pau, q(bkx(p o across a patch of ice at a speed v with its brakes locked. It then hits dry pavement and skids to a stop inl,q 9o eu3p-qv.xk /cbe sp((a 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 -ky60 :pk:4f okyfes)d .ucqi an emergency stop by slamming on the car's brakes and skidding oku s: ec4:fi-f0p y6k)y.kqd to a stop. How far would the car have skidded if it had been traveling twice as fast?

  99.39: The driver of an automobile must shra- yu2, p j0y(x0oqcarefully control each of the following devices. Which of these devices can cause an acco2 yra,xsq0y -0h(ujpeleration 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 wef z/-*ln uqop-r6 t0tuight of 15000 newtons is 24000 newtons. About how much time is needed to increase the rocket ’ speed from 12 m/s to 36 m/-ftltqu6 0 /no*-uprzs near the surface of the Earth at takeoff?

  07.21: A box slides to the right acro+ g4ek2va*l t)jlwfx (ss 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+x (lk2v ajgtw* )lef4 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 coa-vf :2 yxb8lo(c vfm4lster tracks of equal length. Assume that on all tracks the roller coaster carts start f8 xf24y:lvfmb- lvoc(rom 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 shows three roller coaster tracks of equal length. A*,. rxvobpqwd *ssq1 (au ix45ssume that on all tracks the roller coaster carts start from rest at the same elevation and moves fr1ob,q s d (wvx4raus*q pi*5x.ictionlessly 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 rt:j6 ts*j 0lni fi5csogd6:7:/ivft along the curved track from point A to point C under the influet6:dronj6v*i cf t7:/ i: ft50gisjl snce 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 floo9b 73f;,al* kmexy5 soksah) jwtd38wr 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 requsasb *k3 3xhkd,); ml jay9ew 7tfo5w8ired 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 against a wall nica +4qhtbcay( 511t 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 th+5y(i4naacc1 t q h1bte block after a time of 1 second?

  05.10: A homeowner pushes a lawn mowa vu3c8tak m/8/6l evbzrjq++er 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. Whikvl/8r/mbv+z3eau +acjt6 q 8ch of the following relations among the various force magnitudes, W, f, N, P is CORRECT?

  06.14: A book leans against a cr5zpl +26ir.4mw icv roqn zh gm:w,i58ate on a table. Neither is moving. Which of the following statements concerning this situation is CORRECT?2rh cwl : gr+niw o8.zip,64iqzvm55m

  06.15: A crate of toys remains at rest on a sleigh ra.mv (u:0 uxoas the sleigh is pulled up a hill with an increasing speed. The crate is not fastea:x.uur0 m (voned down to the sleigh. What force is responsible for the crate’s increase in speedup the hill?