99.36: What happens to the inertia of an obje8s f57qm u):dj /bdzn +t pfx:jjcv0l6ct when its velocity is doubled?

  02.14: An intrinsic property of matter is one that+./m t7nvwp e; /vnekd does not depend on the quantity of +n/.enket mpw ;7dvv/matter present. Which of the following properties is NOT an intrinsic property?

  04.16: A 20 kg boulder rests on the surface of the Earth. Assuwtqzmq el y+n *;bbx.k8)p04ame the Earth has mass emw.y0qqk n;bpa) t8zb +l* 4x$5.98 \times 10^{24} \; kg$ 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 surface of the Earth. f*y ;8fajc mf9What is the magnitude of the gravitational force acting onff*y;c jam8 9f the earth by the sphere? The Earth mass is $5.98 \times 10^{24} \; kg$ .

  00.09: Is it possible for an object’s velocity1si1gb2 5l/ij oky /ub to increase while its acceleration deg ou ski1l2b/5 by1/ijcreases?

  00.11: A certain particle undergoes er*w n hx/x+cso8ratic motion. At every point in its motion, the d+8c oxxws/nh*irection of the particle’s momentum is ALWAYS

  17.14: A block is suspen2nj u083y d) j0qcdakoded in the air 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’)jnj03cduk 08d2 qyao s Third Law pair force to the force of the string on the block?

  07.18: In which one of the followiozief 6b,qn2 *pesv/+ ng situations is the net force constantly zero2i 6*oe+qz pe/,vfsb n on the object?

  13.28: An object is in free fall close to the ground. A person intervenes and s wbs)1gfh 3y5zlows 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 accelbzhg31s)5wf yeration from gravity is g.

  98.03: An object in equilibrium has three forc .ia4lj,lmlaec ;.fokk85u ji0l21gpes, F1 of 30 N, F2 of 50 N, and F3 of 70 N, acting on it. The magnitude of the resultant ofF1 and llmo.a;ji .a8kll1g0p ijc,ke 24f5u F2 is

  01.07: A force of 6 Newtons and a force of 10 newtons can be combine to form 7va 80g hmn7m/ os6yr+whup1 u..hbbtb p/mx*a resultant with u g6mr.bap hb y +uvs. 0b7 1*/n/7xhom8mpwtha magnitude of which of the following

  10.06: Which of the following statements is most closely associat 98 9gvf*(nvre l+czfwed with Newton’s Third Law of Mof+rlvwgn ( z98efc *v9tion?

  95.06: The reaction force does not cancel tmu t*. u,2g xvkc2xhq:he action force because:

  14.14: A box rests on the floor of an elevator. The elevator is accelerati8v lo .bmrf8 vm+cjs90ng upward. Which one of the follo0b.+ 8c8r m9vljosmfvwing choices best represents the Newton’s Third Law pair force to the gravitational force acting on the box by the Earth?

  15.15: A skydiver falls dow8hh 6ihc:s m0dnward 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 actmsh:8 dh0 c6hiing on the skydiver during the fall?

  06.08: A baseball is thrown by a pitcher with a speed of av3 bi*+bs9gf35 m/s. The batterswingsbb vi+s3f9*ag and hits the ball. The magnitude of the force that the ball exerts on the bat is always

  11.13: A physics book sivwucerhg) 4)+ ts at rest on a table. On top of the book is a calculator, also at rest. Which one)u w)4vhcer+g 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 conductip; aoqpl,d e06ng an experiment related to Newton's Second Law. The collected data were displayed on the graph at p;po qle,6ad0 the right. From this graph, what conclusions can the students make?

  99.03: If the net force on an object were doubled while rz pt5 (rc )seh6-pwz*uu5uq.0xt x p)at the same time the mass of the obj)pspwr5xup*qh)t( 50uz6c .r t-xuezect was halved,then the acceleration of the object is

  96.15: A car whose mass is 1500 kg is accelerated uniformly from rest to kast9g) oz+ k9m1uwv 5a speed of 20 m/s in 10s. The magnitude of the net force accelerating t5guw k v)19+ tms9akozhe car is:

  99.05: A tractor-trailer 1qz 3 bvt;cf)jtruck is traveling down the road. The mass of the trailer is 4 times the mass of the tractor. If the tractor accelerates forward, the force that thef bjz1;c )tvq3 trailer applies on the tractor is

  99.16: Which of the following principles best explains why large tractor-trail( odej*)fb r(whty8e s*r6rf/er trucks generally accesf h6tf8er/(e*b()*yr ojwrd lerate much more slowly that automobiles?

  99.19: A 50 kilogram skater at rest on a frictionless rink throws a 2 kilogram 1m/powcumn lfd lw1fg30*(l7ball, giving the ball a velocity of 10.0 m/s. Which statement describes the subsequent motionlc(*lo 1g73 f/wm 0dlmuw1 fpn?

  00.13: An object near the surface of the earth with a weight ofyqz,/wd 2ams ) 100 newtons is accels2),yad w mzq/erated 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 const :m83fjewd 9oaant force of 2400 N. What is the spe d8:9owa3em fjed of the car 8.0 s after beginning?

  98.32: A 3.0-kg block with initial speed 4.0 m/s slides across a rough horizonta*8 jtcjio0oa7- qk1/q ckpvqi ww.)q5l floor before coming to rwkwtqj0 q/j *q1 5kq7opc.i 8 c)ivoa-est. 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 mnum dfhxv 7gvg;3i 02* across a rough horizontal floor before coming to restgh0 3v72v ;din ug*xfm. The coefficient of friction is:

  09.21: A 20.0 kg box remains at rest on a horizon:pbn z q:p0q -/cuzn:atal surface while a person pushes directly to the right on the box with a force of 60N. The coefficient of kinetic friction between the box -a qz 0:p uzqcp:n/:nband 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 initi*p5v(m *ix-.5vhkb vzi ljj8hally moving at 8 m/s accelerates 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 best represents the coefficient of kinetic friction betwvpih.v ml-kv5 xz8hijb** 5j(een the surface and the block?

  00.21: A car of mass m slides across a patch of ipuhh/s.: fzkmibd): x*wp;kjh 3o --mce 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 a :m;oxdpuk f3h)*.h swpbzh:-mi- j/knd 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 igki0z0u i)n 9rce 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 road is z0nig ur9)k0 i 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 emergc9 nl.fasvndx yd /f5p)8ai5*p6 b htdb,m-,sency stop by slamming on the car's brakes and skidding to a stop. How far wxnn.hsd8 9fdbbpat)5p a d5mi vyf,6*cl /,-sould the car have skidded if it had been traveling twice as fast?

  99.39: The driver of an automobile must carefully control e2xvl9kl0fte)rwz(qu b gc77 e,5r /xhach of the following devices. Which of these devices clxv)c9,gbhxekz u05w r7r72 lqe(t f/an 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 of 15000 sok )dm81lh*ny 5u qcv)yo:;n jx(c+xnewtons 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 o*l5 +md;hjxk1o nu)q8 o)xnyyv csc(:f the Earth at takeoff?

  07.21: A box slides to the right across a hort1,p 5 wsxkv xm*hd3o0izontal floor. A person called Ted exerts 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 sd1hv,kpsx0o wm* x t53izes of these three forces exerted on the box.

  02.27: The diagram below shows three rolleurhji3 -lok p5/wvz0,r coaster tracks of equal length. Assume that on all tracks the roller coaster carts startluj5i kw,zv3o0p-/ r h 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 be traveling the fastest at the finish?

  02.28: The diagram below shows thrw ve 0+np4r5okee roller coaster 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 the 5+wk4ore v0np 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 roludl d o0r++q1x dtre4)lercoaster cartrolls frictionlessly along the curved track from point A to point C under the influence of gravity. What would be the direction of the cart's acceleration at po ud)d x4rdr+t1+ql0oe int

  02.40: A box with a mass of 50 kg is dragged across the floor by au)nndb55a j: z 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 atnun:a bj)55dz 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 by a 100 N forct87*jhbog 1 or0doon- e as shown. Thecoefficient of kinetic friction is 0.30 while tho0o8-7j1r b *d otoghne 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 pushuu;krszw i7 :*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 of the following relations among the various force magnitudes, W, f, N, P iursk:iu*7w ;z s CORRECT?

  06.14: A book leans against a crate on a table. h8.:sh ,- 3n yhadhcxv w)9oczNeither is moving. Which of the following statemews, .hnva-39x:od hc8ychz)hnts concerning this situation is CORRECT?

  06.15: A crate of toys remains at rest on a sleigh ajprj05 ew eg,v)sz-9ss the sleigh is pulled up a hill with an increasijr0e s,wj) p-v5sge9z ng speed. The crate is not fastened down to the sleigh. What force is responsible for the crate’s increase in speedup the hill?