99.36: What happens to the inertia of anctd/yya31i+s) td r 6t object when its velocity is doubled?

  02.14: An intrinsic property of matter is one that does not depend on .shsv58 0p os:,uaebp (an rh0the quantity of matter present. (rospa: 0v5n8 ssbe,phha. 0uWhich of the following properties is NOT an intrinsic property?

  04.16: A 20 kg boulder rests on the surface of ig8h t*19qo ;jlobl.zjg t/ iw+x-9tuthe Earth. Assume the Earth has mast9jqbz lxlt g o1+h;-/tji *8.ui g9wos $5.98 \times 10^{24} \; kg$ 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. What i mpploh/ a5 53wl g9mol:5to;zs thehlw5o: zmm3ga9lp; tp5o /5lo magnitude of the gravitational 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’s velocity to increase whic8n jpq2;, djqd wl 8gb)2ly)ole its acceleration decre)w2gjob lpljyqn 8;,)c28qd dases?

  00.11: A certain particle undergoes erratic motion. At ew.1x5c :*g0y qb cbmyevery point in its motion, the direction of thec05 b: *mx1g.ebyywqc particle’s momentum is ALWAYS

  17.14: A block is suspenzu 24g5rl(jg5q sww)rodz /b 7ded 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 timlrr5)bw ggz 4qu 5djwo(2s 7z/e. 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 8:pfuko 3get inszp 39*uv+0sof the following situations is the net force constantly zero on the obje* 33+enss0up kptf:i8uzog9v ct?

  13.28: An object is in free fall close to the ground. A person intervenes and slu61 w6zxqx7fc ows the object uniformly to rest. Which one of the following statements must be true about the magnitude of the acceleration cxq7wux1z66fof 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 gravity is g.

  98.03: An object in equilibrium has three forces, F1 of 30 N, F2 of 50 N /6 0nle(gc7ap6jpxqfk 0 eq,y, and F3 of 70 N, ac np/j06k qlc7ey(qgpx a ,e60fting on it. The magnitude of the resultant ofF1 and F2 is

  01.07: A force of 6 Newtons andw8 /z:ob5dd 8n)(iaxo.fvanc:,ddbdvb v )4s a force of 10 newtons can be combine to form a resultant with a magnitude of which8daibbavv,fxd 4dv ow):o5s :n bnd)/8z(c.d of the following

  10.06: Which of the following xr(hi4z(gq sxw.)x7n qm: op, statements is most closely associated with Newton’s Third Law o n)w4(zx:qx., o rh7mxgsp(qif Motion?

  95.06: The reaction force does no mgn+g l-- /g9mc(jlgnt cancel the action force because:

  14.14: A box rests on the floor of an elevator. The elevator 1 fzbuxpjl-g86*kv,y is accelerating upw*f,b-kjpzlvgy6 8 1ux ard. Which one of the following 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 through the air with co erzb nm *fw1u :1 m,n4/hoa2y9+ juctiih,j1xnstant speed. Which one of the following choices correctly describes the Newton’s Third L i tum+9m1 12 fai1* r :,cbnoh,exj/zuny4wjhaw pair force to the air resistance acting on the skydiver during the fall?

  06.08: A baseball is throgr5s9s o o9 v8v6k:xrwrk9 qm9n/1xjqwn by a pitcher with a speed of 35 m/s. The batterswings and hits the ball. The magnitude of the force that the ball e5s kok 9vrjq6x1sn8q vxo 99:/w m9grrxerts on the bat is always

  11.13: A physics book sits at rest on a table. On topp2 h 4 s/;4ittwlizoq+ of the book is a calculator, also at rest. Which one of the following choices is towp +qs h/itt2; 44zilhe 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 labcqs -pk m7cq8cv6-rn d0 mo23z conducting an experiment related to Newton's Second Law. The collected data ds7 8cp 6cq -zq2 o-mv0rnc3mkwere 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 jdsqm93 : i8gbdoubled while at the same time the mass of the object gj93: mqs b8diwas halved,then the acceleration of the object is

  96.15: A car whose mass is 1500 kg is accelerated uniformly from rest to a xgkqfm 2r3 l ,ada7m *fz20/brspeed of 20 m/s in 10s. The magnitude of tf27 /0abgr23r*fxalzdm ,mk qhe net force accelerating the car is:

  99.05: A tractor-trailer truck is traveling down the road. Thi tbcp;v21/*wt n 4mdre mass of the trailer is 4 times the mass of the tractor. If the tractor accelerates forward, the force that the trailer appli;wi2 v 1t btndm/rc4*pes on the tractor is

  99.16: Which of the following principles best explains whs mfe ptsd)40eln2- q+y large tractor-trailer trucks generally accelerate much more slowly that automobiles?s)ted 2nqm4 - lfpe0+s

  99.19: A 50 kilogram skater at rest on a frs6hj5hdon ok5c 3 6f ji8l6w8rictionless rink throws a 2 kilogram ball, giving the ball a velocity of 10.0 m/s. Which statement descr 5 3fh6i5ck wo8j8ohd 66jnlrsibes the subsequent motion?

  00.13: An object near the surface of the eart rqi/p/mwq 78yh with a weight of 100 newtons is accelerated aim/ qw7/pyr 8qt $4\;m/s^{2}$ . What is the net force on the object?

  98.25: A car whose mass is 1200 kg is accelera 2n2olff.mq y*r w0gm8ted from rest by a constant force of fnw2r 8m0.2 foqgm*yl2400 N. What 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 rou-o x .n1fjx932 *luqvqaknom3 gh horizontal floor before coming to rest. Thmnn ax*xlqo29 jk vo.u-13 fq3e 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 m across a rough 3f+ /1c v adbrnws*wu9horizontal floor beforb dv 3f+wur1wsac*n9/e coming to rest. The coefficient of friction is:

  09.21: A 20.0 kg box remains at rest)ztp1l- rgm su2 az33lbe7t4f on a horizontal surface while a person pushes directly to the right on the box with a force of 60N. The coefficient of kinetic frictio3m z ttaubegs 7p l2l)fr31z4-n 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 mz1xru a,v kdi0,9h(o l 981cme uuqc9roving 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 choice1uu99qmc8 rr( hi aceo,0v,1xlkz9 uds best represents the coefficient of kinetic friction between the surface and the block?

  00.21: A car of mass m slides across a pat 2ch mxt,f4ap)ch of ice at a speed v with its brakes locked. It then hits dry pavemm) cap tx,f4h2ent 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 p .x-72bsr yzb5vu7hwslides 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 distanbphyr7-u 2w75xvb sz. ced. 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 emergency stop by slamming okne03-y(juredgeob m+ kd e5)*pv.r/n the car's brakes and skidding to a stop. Hown )(pd e/*kv.dr+ubjgereo 0y35m ek- far would the car have skidded if it had been traveling twice as fast?

  99.39: The driver of an automobile must carefully contr* wl)0 :n hii-elg/x3tle6wp rol each of the following devices. Which of these devices callnwt) 0heelw/ pr3*:ixi g6-n 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 f:*dzvfs 0l 4kof 15000 newtons is 24000 newtons. About how much time is *kv4 sf:l 0fzdneeded 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 rigv.m y3esp)ae: ht across 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 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 thream sev:e.p y)3e forces exerted on the box.

  02.27: The diagram below shows three rb t: h3cd)x5egoller coaster tracks of equal length. Assume that on all tracks the roller coaster carts start from rest at the same elevatioc)b3g5 :dhxe tn 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 r.z/b0:m 29ajl l c4leiz8u uksoller coaster tracks of equal length. Assume that on all tracks the r29le u4z /8blazlu .0j:ksmci oller 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 cartrolls frictid hq07ke18)f.yk c refonlessly along the curved track from point A to point C under the influence of gravity. e0 )yk.k7qchf f8e r1dWhat would be the direction of the cart's acceleration at point

  02.40: A box with a ma8 fm0mn;mcq toi 3.bi.ss of 50 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 becobit 08m3 mnmqi;f..tween the box and the floor if a 250 newton force 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 wall by a 100 N for7y h0k03 kyiwlqupcr7jzj oqi,3sfw.22 8en:ce as shown. Thecoefficient of kinetic friction is :j2c0y3 7hqwz,i3s jk8yni2ewp7 fq uol0rk. 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 .ab*lc z4gc; fa 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 t*lgab.; 4cczf he magnitudes of the various forces on the lawn mower. 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 movin.-.n-d xkq1pj9a vnvpg. Which of the following state.q-vx. vna1d9k j-n ppments concerning this situation is CORRECT?

  06.15: A crate of toys remains at rest on a sleigh as the sleigh is pulled u:rw b5y+j0owgck wl2a3 3 52 :kynadyep 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 s:wg2ow2acd ry kj 3y0l5ayew:3kn5+ bpeedup the hill?