99.36: What happens to the inertia of an objcw;y;h z ur,2whmzm b((vf c92ect when its velocity is doubled?

  02.14: An intrinsic pgg8icvo :wme gbj0133j+ ef.troperty of matter is one that does not depend on the quantity of matter present. Which of the following properties 3jit 3:of8b cg1 wv0.ge+egj mis NOT an intrinsic property?

  04.16: A 20 kg boulder rests on the surface of the Earth. Assume t6l3qctu7 tr c/he Earth has massu63 tr/cq7tcl $5.98 \times 10^{24} \; kg$ 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. Whp 97rhexfg*2/vf 8uziat is the magnitude of the gravitational forcgz e *r iffhpv7u289x/e acting on the earth by the sphere? The Earth mass is $5.98 \times 10^{24} \; kg$ .

  00.09: Is it possible x-y35v53 nqgfi kg5tbfor an object’s velocity to increase while its acceleration decreasen5vyg ftikq -5xg 5b33s?

  00.11: A certain particle undergoes erratic motion. At every point in its motionm0,v.rfu4s s2qxx)g;utar9 y, the direction of the particle’s momentum is gy 9mfs rv0uxr) u2t sa,;xq4.ALWAYS

  17.14: A block is suspended in the air at the end of a string h1f;ke .sc6 xo d,+rq xw56itmxeld by a person. The person pulls on the string uniformly accelerating the block upward for a short xx16s+q,r5m o;kwic.et6xd ftime. 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 is the net force constantly,o2cz4jb)oqj;s98w rxe c(ge zero on the objec,oocj)2rq gzb4x8we ;e9cs(j t?

  13.28: An object is in free q54b c2ylvru.5)enozh l66r h fall close to the ground. A 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 th2zvroryn.4 5 )6l u5qblhc6 hee 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 equil0 vz;1/)zyq+hufhovz ibrium has three forces, F1 of 30 N, F2 of 50 N, and F3+0fz qh/hvzy;)v 1 uzo of 70 N, acting on it. The magnitude of the resultant ofF1 and F2 is

  01.07: A force of 6 Newtons and a f6pbxa50 m - -v;g zze.gu/re/uwblh+lorce of 10 newtons can be combine to form a resultant with a magnit5/lvu- gm+epb0/-ue bax zzhl6.; grwude of which of the following

  10.06: Which of the following statements is most closely associated wit qnm0 63lkr+u0d,uz, ki4funq-m3 vdhh Newton’s Third Law of Motiou0rm 04uiq u nzm+,ld3d h-,f3kv qkn6n?

  95.06: The reaction force does not cancel the action force becaus s0.u+1xb5q uyf* ,7jswlel lxe:

  14.14: A box rests on the floor of ae,q, fqc ggzy04t-/j ln elevator. The elevator is accelerating upward. Which one of the followin40 ,ygel g/-q ft,jzqcg 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 downward throughssu, )s9 xb.x3*rgoi z the air with constant speed. Which one of the following choices correctly describes the Newton’s Third Law pair force to the air resistance act g )sxibx9.s3uro ,*szing on the skydiver during the fall?

  06.08: A baseball is thrown by a pitchejay )l66bqp. sr with a speed of 35 m/s. The batterswings and hits the ball. The magnitude of the for6qpsj)y lba6 .ce that the ball exerts on the bat is always

  11.13: A physics book sits at rest on a table. On top of the book is qnxv2 tw-ngb.l.x., ha calculator, also at rest. Which one of the following choices is the Newton’s Thirdqx, -2. .vlw nnxgt.bh 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 conducting an expel9u j+exm/+x j4h j2ozriment related to Newton's Second Law. The collected d+jj2x+4jzumxehol /9ata 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 a6or 4appcju3 sozkz ;-y:8s;object were doubled while at the same time the mass of the object was halved,then the acceleration of the objecu8oz s;caar;sp3- 6kyojz4:pt is

  96.15: A car whose mass is 1500 kg is accelerated unifo3 e2n9,;t yfnkfad5h*hy;vl l rmly from rest to a speed of 20 m/s in 10s. The magnitude of the net force accelerati ;9en3f;t*yhhak ldfyn 5l,v2ng the car is:

  99.05: A tractor-trailer truck is travelin(5tpfim(wtdv6o0ls aq a (2w8ha -ll6g down the road. The mass of the trailer is 4 0 (-5ow68ltwds f6(qpia avl2 t(alhmtimes the mass of the tractor. If the tractor accelerates forward, the force that the trailer applies on the tractor is

  99.16: Which of the following principles best explains why large ty 0yxsv:/* asdractor-trailer trucks s*vsx ay 0y/:dgenerally accelerate much more slowly that automobiles?

  99.19: A 50 kilogram skatackh5m4gb;0 8cje 4h( tsj8e per at rest on a frictionless rink throws a 2 kilogram ball, giving the ball a velocity of 10.0 m/s g 4p8ea(j s;4mch ejt0ckbh58. Which statement describes the subsequent motion?

  00.13: An object near the surface of the earth wbkkpw b.5xx m hq93)5 a+/hzvi/ 6lduoith a weight of 100 newtons is acbb kv5m h/ k5o 6)xxi+qw9dzpl .u3ah/celerated at $4\;m/s^{2}$ . What is the net force on the object?

  98.25: A car whose mass is 1200 kg is accelerated b xg+k * kee ;ekyck .5sjbqgf)p-9-5ifrom rest by a constant force of 2400 N. What i*g i)fk.p-- ej +;5kckk ee xs59bybqgs the speed 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 horizo:wwvh9 58u lgrntal floor before coming to rest. The frictional force acting on the block is 3.0 N. hwl vrw:gu9 58How far does the block slide before coming to rest?

  95.38: A block with initial velocity 4.0 m/s slidebw :(0od:h ieemyc11 cs 8.0 m across a rough horizontal floodemc1 iw yh :b1c(o0:er before coming to rest. The coefficient of friction is:

  09.21: A 20.0 kg box remains at rest on a horimo6(f b4cry9p zontal surface while a person pushes directly to the right on the box with a force of 60N. The coefficient pf6(orc9m 4ybof 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 mov*;p-wx0nslur tmf+tf yt o/.(ing 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 repres-* pt;flw (/nfto+ sut0my.rxents the coefficient of kinetic friction between the surface and the block?

  00.21: A car of mass m slides across c*tkopg6646 n,/yed 2rguiaqa patch of 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 betweenupt6gy*are/o,c6 k 6i 2qn4dg 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 acrosst bxpwp*nw0(k (uv7.zc 7r)sk a patch of ice at a speed v with its brakes locked. It then hits dry pavement and skids to a stop in ak)7(0zwpp. cn*wr7(ubvs xtk 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 emermvd, 9cfvm3 ;dgency stop by slamming on the car's brakes and skidding to a ;9c ,mvd v3fdmstop. How far would the car have skidded if it had been traveling twice as fast?

  99.39: The driver of an automobile must carefully control eacqyc3fub aei9 yb :k+ ,pkj328zh of the following devicb +ek: 9fa33,bijc2qy u8kpzyes. Which of these 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 weight of 15000 newtons c.lsm;qjvda71z+vy;l)kp n)d c pc13jjnv45 is 24000 newtonsylajvcj)lvd ;+p vc4; nds7 c5p q)j1.km31zn. 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 takeoff?

  07.21: A box slides to the right across ajm3z ionc60durr l)z74d: aa* 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 the left, which is half as large as the force T. Given that there is friction f and the box accelerates to the rig:o6iuzm03d ca)z4d*nlaj7 rrht, rank the sizes of these three forces exerted on the box.

  02.27: The diagram below s4jd9 j a jjsb5bdeq0:a4o,qx8 hows three 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 s e8 bdjjq 5x,0j4 jb4aq:a9dotracks 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 l doj.k:i-f+p mx .reu,ength. Assume that on all tracks the roller coaster carts start from rest at the same elevation and mi.p+fr:k.x du, omje-oves 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 cartrolhna0mn 7a6qj +ls frictionlessly along the curved track from point A to point C under the influence of gravity. What would be the dire70+amann6 hj qction of the cart's acceleration at point

  02.40: A box with a mass of 50 kg is dragged across the floor by a r 27k ohsqfd*g4* grgp8xru97p ope 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 th7g hp9o8rg7*drxksu 4* pq g2fe crate at a constant speed of 20 m/s as shown in the diagram?

  04.40: A 6.0 kg block ini9dstpbc:n.6 (8q d+hrgtcn mxr-gv: 5tially at rest is pushed against a wall by a 100 N force as shown. Thecoefficient of(dh 9mc. 5:btv n-:g8gcs6+rtqnxr pd 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 lawn mower across a horizontaur nayx5ub9 .k1 rgnwis82mbu s474*ol 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 mow5 uginubu4*m rkox wsy142a.b87rn9s er. 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 moving. Which ofq9wwl7.l*(pk fz 1qvx the following statements concerning thiswkw x.7z1 9vqlpf ql(* situation is CORRECT?

  06.15: A crate of toys remains at rest on a sleigh as the sleigh is pus: +hbsar, ma-lled up a hill with an increasing speed. The crate is not fastene:a+ mrs-h,bs ad down to the sleigh. What force is responsible for the crate’s increase in speedup the hill?