99.36: What happens to tz6 7(n;mqqhli6hvvsr/kd j ,0he inertia of an object when its velocity is doubled?

  02.14: An intrinsic property of matter is one that does 2 .h8bf)s; 2ebw+ia p.qj scuznot depend on the quantity of matter present. Which of the following propertiesh)qfiwsbc.2 . abups ;z e2j+8 is NOT an intrinsic property?

  04.16: A 20 kg boulder remc)7 x.,9fdayek8ye qsts on the surface of the Earth. Assume the Earth has masfdqe)8, y97yka.xmc e s $5.98 \times 10^{24} \; kg$ 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 l knge7xx-hcm,mh-,46ps i5 cnear the surface of the Earth. What is the magnitude of the gravitational force acting on the earth by the sphere? The E- e6,xg s hnmcx-5hl4i,ck7pmarth mass is $5.98 \times 10^{24} \; kg$ .

  00.09: Is it possible for an object’1fbwycn ) ce/l, sqz*8s velocity to increase while its acceleratiowclzq,18yc *) eb/snfn decreases?

  00.11: A certain particle undergoes erratic motion. At fk(. )ouhr* nrcpt0a3 every point in its motion, the direction of the partic(k)n. o0 rf*3actuhpr le’s momentum is ALWAYS

  17.14: A block is suspended in the air at the skpyceto:+*zdz cdi+- p4* .r 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’s Third Law pair force to the force of the string d zd:p*+*yiorc.c-4+zspt ke on the block?

  07.18: In which one of the following situations is t*4,zqyf9 leba qe92wuhe net force constantly zero on wa *fqy z9b4le92euq, the object?

  13.28: An object is in frmi9 5r ymbm2n1mqq -c;ee 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 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 g;9c51nm -mrqb 2myiqmravity is g.

  98.03: An object in equilibrium has three forces, F1 of 30 N, jc m3 ;:qwgyj6mvo+5jF2 of 50 N, and F3 of 70 N, aco:j+ ;6 m gjjc5mvqyw3ting on it. The magnitude of the resultant ofF1 and F2 is

  01.07: A force of 6 Newtu8qm94,bt arcs4a 7 tzons and a force of 10 newtons can be combine to form a resultant with a qc 4tr84 uza,7tasm b9magnitude of which of the following

  10.06: Which of the following statements is most closely asy)t*8jv-jv lxmg7u64 fgq-qp sociated with Newton’s x* qt )gvv 8-jufp74-m 6lqyjgThird Law of Motion?

  95.06: The reaction force does not cancel thy ah o2m:)ev a;vwofhj54g ,3ke action force because:

  14.14: A box rests on the floor of an elevatgi 0vg x1:.1rag1zzx; beq9eqri.f c7or. The elevator is accelerating upward. Which one of the following choices best.r 7x:e geq;fiq.zrczb9aix 1vg 1 0g1 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 through the air with constant speed. Whichbqu1x 8ll )nr;5fz 2dm one of the following choices correctly describes t58xz l qm12d funr;l)bhe Newton’s Third Law pair 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 35 m/s. The b utv-jv8ad/mi2c(4o xatterswings and hits tavtcvxm do2 8- u(/4jihe 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 table. On top of t; 2s 3mhino,xuhe book is a calculator, also at rest. Which one of the nh i;s2x 3,uomfollowing 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 p,kk eph5lj67-iwema s4- nn5 conducting an experiment related to Newton's Second Law. Thp,n5l ke6-hw7 k5 nj4maieps- e 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 while at 4v8gty y: ccu;the same time the mass of the object was;yg:t4yccv 8u halved,then the acceleration of the object is

  96.15: A car whose mass is 1500 kg is accelerated uniformly from rest ;jeu63 oix w7ch 2kol-to a speed of 20 m/s in 10s. The h7- c36owli xek;u2oj magnitude of the net force accelerating the car is:

  99.05: A tractor-traile9npgg 6m*bd4 lr truck is traveling down the road. The mass of the trailer is 4 times the mass of the tractor. If thg*nb 6lm9 p4gde tractor accelerates forward, the force that the trailer applies on the tractor is

  99.16: Which of the following principles best explains why large tractorrg,lz 9 qb-i.af:v:qe1pi 9 as-trailer trucks generally accelerate much more sv.s9lfgq:z : b, 9-qape1ii ralowly that automobiles?

  99.19: A 50 kilogram skater at rest on a 4p1kek by,z (fg ek/z9frictionless rink throws a 2 kilogram ball, giving the ball a velocity of 10.0 m/s. Which statement describes the sz1 yez9kkg4f( / bpe,kubsequent motion?

  00.13: An object near the surface of the earth with a weight07qw lthp/f r6 of 100 newtons is accele lqpf6 r0w7t/hrated 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 aszhzcoz98/)y.qh0s4 u9 al tk constant force of 2400 N. W os/zz9st0ckqy4.alh98 zh )u hat 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 slides across a fyo3k1v9d4-pop5e6g 1lmmer rough horizontal floor before coming to rest. The frictional force acting on the block is 3p elopg53od6kev-mf ry m1 419.0 N. How far does the block slide before coming to rest?

  95.38: A block with initial velocity 4.0 m/s slip5qfb; -xr(po des 8.0 m across a rough horizontal floor p (pb-qx ;5forbefore coming to rest. The coefficient of friction is:

  09.21: A 20.0 kg box remain0ju2htb ol tsj,-;0jas at rest on a horizontal surface while a person pushes directly to the right on the box with a force of 60N. The coefficient of kinetic friction bet0s j-2lhutbjt0,j ;oaween 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 movin1):u7gc 3dfb zxvff 9cg at 8 m/s accelerates uniformly to rest on a horizontal surface. The block travels a distance offg1c) x7dcb fzu9 vf3: 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 (:cgu(me21 qk.d*9eiyj:po ukke fc )a speed v with its brakes lockedp(cjk(21me. iuck:*9ueefdq) ok g:y . 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 μ .
If the car had a mass of 2m, it would have skidded a distance of

  00.22: A car of mass m slids 2di )u6s+m0*-fo a-iwf(xtviryxm3es across a 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 between the tires and the dr+iiy xdu v-(mx)tmf62or as0sw-i 3f*y 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 slamming on the car. va,4 qo .ep*lvyi9yee) zul3's brakes and skidding to a stop. How far would the car have skidded if it had be.eel.evyyz,iv) lpao3* u4q9 en traveling twice as fast?

  99.39: The driver of an automobile must carefully control 6v 2dpkf*g6d m ehh7/ieach of the following devices. Which of these devices can caush* m/de6k6vgi2h7pdfe 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 weigp9uy8,izw-i ;o8 c capht of 15000 newtons is 24000 newtons. About how ;89azpipcu- cy,8owi 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 a )zi08p1sf yj s1lt8pmhorizontal 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 sizes of these three forces exerted on theyfs1j)mit1 p 8pzl0s8 box.

  02.27: The diagram below shows three roller coastfb14da2q+n -7 ujstwb er tracks of equal length. Assume that on all tracks the roller coaster carts start from rest at the same elevation and moves frictionlessq4tdfswa+bn 172 j- buly 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 three3v r.7jb3elc2e d6p8qwfj vx4 roller coaster tracks of equal length. Assume that ovbl.6d vrj3q we43 7xcpj28fen all tracks the roller coaster carts start 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 reach the finish first?

  02.29: Assume the rollercoaster cartb. i0n/dtr qz*n;)fj6 xyiq xb/2ucu) rolls frictionlessly along the curved track from point A to point C under the influence of gravity. What w) dqz/;)2q t6xurif* x. /u0niyjcnbbould be the direction of the cart's acceleration at point

  02.40: A box with a mass of 50.+epi-femnf-d 2 zs k(,xc.t t kg is dragged across the floor 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 ted-,- zem f2kts+xn..ifc p( 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 against a wa/,p0 dc gzmyd ,/x+ :yfabo7wsll by a 100 N force as shown. Thecoefficient of kinetic friction is 0.30 while the coefficient of spy,om c :d0a/f7+yxz /wgdsb, tatic friction is 0.50. What is true of the friction acting on the block after a time of 1 second?

  05.10: A homeowner puxj d* j+sot8k*shes 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,j 8t**sjdx+ko P is CORRECT?

  06.14: A book leans against a crate on a table. Neithe 0eh/w kuy65el-ktzj/yip*g 6bo4py7r is moving. Which of the following state k5/6p -o7jeb/eug4ikty w0py6zhy*l ments concerning this situation is CORRECT?

  06.15: A crate of toys*hqn xcw-ybg 85y2du y:f*76hxjo ;yk remains 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 force is responsible for the crate’s increase in speedup the hill?5o : ku h*j82f7x yxyghy;cd6w *bny-q