99.36: What happens to the inertia of an objz5hu4+m wl:*zga j3dfect when its velocity is doubled?

  02.14: An intrinsic property of matte-99 0) + fzcqfie fwpvk:*sg lqp8-yfdr is one that does not depend on the quantity of matter present. Which of the following properties is NOT an intrinsic wed8*z 9qcifk+p-0-:fp q)9ysvfg f l property?

  04.16: A 20 kg boulder rests on the surface of the Earth. Assume the Earth g1umcxtn 3,h 8qv)s*k dt ,sw0+4wlydhas mass 0 ,uw gnsswmtk)q ,d81 +yvhtx*lc34 d$5.98 \times 10^{24} \; kg$ 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 7nvg18op/o nx .ub:pxt1zwos v t4.y-fall near the surface of the Earth. What is the magnitude of the gravitational force acting on the earth by the sphere? The Earth moptuz1bv v.7 n1w: - x 4yxto8/.gpsnoass is $5.98 \times 10^{24} \; kg$ .

  00.09: Is it possible for an object’ 7v-1j bc2)b1iu ktrt7c4 wrshs velocity to increase while its acceleratio hcbbrr7 v4wu sc tt217j-i)1kn decreases?

  00.11: A certain particle undergoes erratic motion. At every point in its motion eup8 3fsx-vd rp1sh1,, the direc-f,spvx81r eu s1pd3htion of the particle’s momentum is ALWAYS

  17.14: A block is suspended in the air at the end of a string held by a pers z0ozhvy)+--vrh r0a+dc1bdq on. The person pulls on the string uniformly accelerating the block upward for a short time. During thhz- q+0 hdbcod)az1v-vyr0+ ris 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 f4( ih2 ba z1w7(hlqjcpcim; :mollowing situations is the net force constantly zerom4abmlzqpch; :wi j71(ci2 (h on the object?

  13.28: An object is in free fall close to the ground. A person intervenes aiy ezra3 ,p;5*iq ns1bnd 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 bya niyzr5q;1 i,p3e*bs 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 three f te(d /efrp8(p xt4tb,orces, F1 of 30 N, F2 of 50 N, and F3 x(t/p tte8(r ,bf4edpof 70 N, acting on it. The magnitude of the resultant ofF1 and F2 is

  01.07: A force of 6 Newtons and a force3t 2z6wp-nj f kq32ehb of 10 newtons can be combine to form a r-2qe3z3kb wft2 j6ph nesultant with a magnitude of which of the following

  10.06: Which of the f. hs(r(l(l)zi.rnz fn9 t-xwzwv )4 hxollowing statements is most closely associated with Newton’s Tf(r h l..vz)(hlwsnr)nw4tz-i 9 (xxzhird Law of Motion?

  95.06: The reaction force does not cancel the actionc0// xkk9t cdkt* szr.s ng82x force because:

  14.14: A box rests on the floor of an elevator. The elevator is accelerat pjic39(u 6o.beo thx9ing upward. Which one of the following choices best represents the Newton’s Third Law pai9hj(copbtix6 ue3o .9r force to the gravitational force acting on the box by the Earth?

  15.15: A skydiver falls downward through the air wq6hw ryry9z;e u5-ve8ith constant speed. Which one of the following choices correctly describes the Newton’s Third Law ev9z6yuy rwre8-;5q hpair force to the air resistance acting on the skydiver during the fall?

  06.08: A baseball is thrown by a pitcher with a speed of 3gwz:k r:o c- 3cb*ly4* mwnya(5 m/s. The batterswings and hits the ball. The magnitude of the force that the ball exerts on the rcwnkoa( ::-zb lm 3c *w4yyg*bat is always

  11.13: A physics book sits at rest on a table. On top of the book is a5sjj kz3)pu,-l)q4 jtzl 8f ab calculator, also at rest. Which one of the following choices is the Newton’s Third Law pair force to the forct,jf) bjkl8 z) -5pa 4qlsju3ze that the table exerts on the book?

  05.06: The students in a Physics lu z2h xo/7md 7bmov58I class were in lab conducting an experiment related to Newton's Second Law. The collected data were displayed on the graph atoum78vom d5/2lz7bx h the right. From this graph, what conclusions can the students make?

  99.03: If the net force on an object were doubled while at the same timeemo+r95zo +nm:0d v4qkx igw / the mass of the object was halved,then the acceleration of the objevz w/xdmo5+4ki: 0n 9+ro qemgct is

  96.15: A car whose mass is 1y 6 znm,wsjy r9;3dh+c500 kg is accelerated uniformly from rest to a speed of 20 m/s in 10s. The magnitude of the net force accelerating the cas;wn+y 9,h6 m3ydcj zrr is:

  99.05: A tractor-trailer truck is traveling dmtwr l0u(c 88 zacv.b/own the road. The mass of the trailer is 4 times the mass of the tractor. If the tractor accelerates forward, th.au m8c8b(l r/v zwct0e force that the trailer applies on the tractor is

  99.16: Which of the fo z9k)he;:b tlqllowing principles best explains why large tractor-trailer trucks generally accelerate much: )k9z hqb;lte more slowly that automobiles?

  99.19: A 50 kilogram skatersdclr 3uak n *5,a3-y)u6snkr at rest on a frictionless rink throws a 2 kilogram ball, giving the ball a velocity of 10.0 m/s. Which statement des aksryc5uu,s6 rald n*)33-nkcribes the subsequent motion?

  00.13: An object near the surface of the earth with a weight of 100 nec35d q -jf o5mop fix*k6v2pn6wtons is accelerated at m 5-dof6px52f j*npv o3iqk c6$4\;m/s^{2}$ . What is the net force on the object?

  98.25: A car whose mass is 1200 kg is accelerated from rest by a coni0 8vefwor n0.stant force of 2400 N. What is the speed of the f0io.0n wv er8car 8.0 s after beginning?

  98.32: A 3.0-kg block with initial speed 4.0 m/s vb6j z;-;eu 9iohk k2lslides across a rough horizontal floor before coming to rest.i 2;;v ouj-l6zbk e9kh 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 4.3 f;rraf;m;g qhbo5j*0 m/s slides 8.0 m across a rough horizontal floor before coming to rest. Thro qfa3gm5rb; j;;fh *e coefficient of friction is:

  09.21: A 20.0 kg box remains at rest on a horizontal surface while so14rjvok.6: tqh+fg a person pushes direcs6r4ghf1 qo:t+ov j.k tly 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 rest 2x5fpp+) g szion a horizontal surface. The block travels a distance of 12.0 m durin)gp2f5sx+ z pig 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 tws b; 2-69f, nq) yi7jmlvzriwith its brakes locked. It then hits dry pavement and skids to a stop in a distanced. The coefficient of kz-lqt ns ,j96rvy) 2wfi7ib;minetic 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 v with itss*pl/a;cm c .(lnca:lk7i ( dj brakes locked. It then hits dry pavement and skids to a stop in a distanced. The coefficient of kinetic friction between then(* ; mckljc /7apli(s c:la.d 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 slammi9*keq b1/ cfmgng on the car's brakes and skidding to a stop. How far would the car have skidded if it had been travelince/ fqb g*m91kg twice as fast?

  99.39: The driver of an automobile must carefully contrv+ovwj 9br1*pn ;frk.ol each of the following devices. Which of these devices can cause an acceleration in a moving car? pwvf1bvn.j ;*+ 9rork
(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 newtons is 2npu/vsidh fz1 ,.44ak 4000 newtons. About how much time is needed to increase the rocket ’ spee1v4iauf/ ,zn. kdhp s4d from 12 m/s to 36 m/s near the surface of the Earth at takeoff?

  07.21: A box slides to the right al,, p*j1;sbhze0vq ;osixtr6 cross a horizontal floor. A person called Ted exerts a fosip0z*q ;xhl otej rs61v;b ,,rce 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 coath 0 im u:wh p,76f5epx,zz*qhster tracks of equal length. Assume that on all tracks the roller coaster carts start from rest at the same elevation and moves frictionlessly over t ,hxmeq67:f 5 z0,z puhit*hpwhe 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 showw ay-f wygy9.vr574k fjg.d 4ds three roller coaster tracks of equal length. Assume that on all tracks the roller coaster carts start from rest at the same elevation and my gfry47jw5waykfd- . g9d4.voves 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 cartrollsj(hq h /rj3w8y frictionlessly along the curved track from point A to point C under the influence of gravity. What would be the direction ofj(8wyq r jh/3h the cart's acceleration at point

  02.40: A box with a mass of 50 kg is dragged across the floor by a u 34 miyjo1s 3g)8peaqrope 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 tj au83m3)s14pqo i eyghe 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 against a wall by 9ap gdm.uk/sn)5i spuy2m4u++ejq zq79 r w;f a 100 N forcf p9+9jr.isku yea5n s)g7mpu+ 2/;qqm4w duz e 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 second?

  05.10: A homeowner pushes a 0xx0y wh* ;l9/tsxuzu5f 4;htr fg6vn 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 amowv0xy t0 rhh nfx;s uf5gu4xl6*t;/9 zng the various force magnitudes, W, f, N, P is CORRECT?

  06.14: A book leans against a crate on a table. Neither i ha3)sc bim8ffqxa i2z;y )u22s moving. Which of the following statements concernf3ib a)2zmyuas c;i 2xhf2q)8ing this situation is CORRECT?

  06.15: A crate of toys re.n3 1)mqrfr ejmains at 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 forjr3 . qe1nm)frce is responsible for the crate’s increase in speedup the hill?