99.36: What happens to the inertia of ,xvq,7bn9e do jf)*qlan object when its velocity is doubled?

  02.14: An intrinsic propkg(/7 25knk op nl 8vmpuaon*/erty of matter is one that does not depend on the quantity of matter present. Which of the following properties is NOT an intrinsic prop /vluo n7nnpg*5 (p82akokmk/erty?

  04.16: A 20 kg boulder rests on the surface of the El z*,zm(c ;, ljakswxvx)6f:narth. Assume the Earth has mass vwc zn;,xxj , z6*(f:la lm)sk$5.98 \times 10^{24} \; kg$ 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 seq 0w5g-xcok2 urface of the Earth. What is the magnitc5w g- 0xkeqo2ude 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 while its accelea+wbcmdprcvj64e.-9;f 6gmd ration decreases6mr4bm- gfd. wcvj pda+e6c9;?

  00.11: A certain particle;r9nblru m) :o lvg(a5 undergoes erratic motion. At every point in its motion, the direction of the particle’s momentum is ALWnrlrg lva9 ;(u):bom5AYS

  17.14: A block is suspended in z:u0l k.9f wjpv6v9wco b:d8gthe air at the end of a string held by a person. The person pulls on t: 8k o6wdbwc.v g90lu jp9fzv:he 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 on the block?

  07.18: In which one of the following situations is the net force consnxd4l0jzj ( +3ofd(z mh4;rqitantly zero on the objecq3zdjfxi4 lmhjd;rn 0+4(o (zt?

  13.28: An object is in fre/xzx ic ii81t 5 ;far(yx op.z9mvdf0)e 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 accelerarf izv/ 1xt. pidx(cxmi0ayz8)o ;95ftion 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 gravity is g.

  98.03: An object in equilibriumn(sjf.piom+41 c5aoe has three forces, F1 of 30 N, F2 of 50 N, and F3 of 70 N, acting on it. The magnitude of the resultant ofF1 an5 (ifp+ o4.cesa1mnoj d F2 is

  01.07: A force of 6 Newtons and a forc0g6 d a72njb:4j f3eyjx/9hzd 3xjlif e of 10 newtons can be combine to form a resultant wite0: jxziy/d j694f7a l g3df2h3 xnjjbh a magnitude of which of the following

  10.06: Which of the following statements is m fza1.1qu 3 o.3y0)suxbu;xwe; n twkuost closely associated with Newton’s Third L3sn;0)o w1e. b;f ux.kqwuuu1z ty3x aaw of Motion?

  95.06: The reaction force does not cancel th6 sqj)k1w.yhpe action force because:

  14.14: A box rests on-t*2f6 qjus ej the floor of an elevator. The elevator is accelerating upward. Which one of the following choices best represents the Newton’s2 *j-qujte6fs Third Law pair force to the gravitational force acting on the box by the Earth?

  15.15: A skydiver falls downward through/(dk ixy-w3 6 u-+g*xtn 9lhike(s joz the air with constant speed. Which one of the following choices correctly describes the Newton’s Third Law pair force to the air resist h+ktl ij(s9i-eyg( /-w3dku xx6zon* ance acting on the skydiver during the fall?

  06.08: A baseball is thrown by a pitg 8/xo63fms uscher with a speed of 35 m/s. The batterswings and hits the ball. The magnitude of the force that the ball exerts on the m863xu s/o fsgbat is always

  11.13: A physics book s jy *,1:*tlkevz lqj4rits at rest on a table. On top of the book is a calculator, alvt:jrl1** kq4j,zyl eso at rest. Which one 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 conducting an iid+: +up3vl8jlnghi;g+ up2 experiment related to Newton's Second Law. The collected data were displayed on the lh+g:3ui+jv;+i2p8i g pndlugraph at the right. From this graph, what conclusions can the students make?

  99.03: If the net force on an obgn0 0 /9 a;: ng2,lduzolowneyject were doubled while at the same time the mass of the object was halved,then the accelewdu0noz aeygn;l:0 /9 2lnog, ration of the object is

  96.15: A car whose mass is 15k3 m yu j/c3:t2:d.m(yhyvv sl00 kg is accelerated uniformly from rest to a speed of 20 m/s in 10s. The magnitude of the net force accelerating td/.:vjm(kmyl:3us ht2vy y c 3he car is:

  99.05: A tractor-trailer truck is traveling down the road. The mass of the tra iulky2f36/2scrlv4 l2if 9zq iler is 4 times the mass of the tractor. If thec2qskurl263 if vl2l/9y z 4fi tractor accelerates forward, the force that the trailer applies on the tractor is

  99.16: Which of the following prin /mg xa)up,rm30bwz 1vciples best explains why large tractor-trailerv) z,uprm mwg1 3/xa0b trucks generally accelerate much more slowly that automobiles?

  99.19: A 50 kilogram skab4ib3;/fjaur ter at rest on a frictionless rink throws a 2 kilogram ball, giving the ball a velocity of 10.0 m/s. Which statement describes the subseq4b;jbf /ur3i auent motion?

  00.13: An object near the surface of the earth wir fey6p:rho8: th a weight of 100 newtons is accelerated at p: eh f:yrr86o$4\;m/s^{2}$ . What is the net force on the object?

  98.25: A car whose mass is 1200 kg itvd i) hdwbkw w3y)3;(s accelerated from rest by a constant force of 2400 N. What is the spdvk)w di3;wybt w3h)(eed of the car 8.0 s after beginning?

  98.32: A 3.0-kg block with initk(qxpe 5ghsx*-s:wjrwwk :: c+ )krw5 ial speed 4.0 m/s slides across a rough horizontal floor before coming to rest. The frictional force acting on the block is 3.0 rwkce s+rqwkw- :gxx(5)h p5s w:j:k*N. How far does the block slide before coming to rest?

  95.38: A block with initialojosz ) 30jt* ,zqk5b htw9mk( velocity 4.0 m/s slides 8.0 m across a rough horizontal5hwzsz 0t* otk),j(o3kbq mj9 floor before coming to rest. The coefficient of friction is:

  09.21: A 20.0 kg box remains at rest on a horizontal surface while a ped;:dmp0ck/ y3agog0j rson pushes directly to the right on the box with a force of 60N. The coefficient of kinetic fc 0 jydd a/0k3mg:o;gpriction 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 0 j6sieh3s4wzon a horizontal surface. The block travels a distance of 12.0 m 4s 3iw60sjehzduring 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 acnptz44szr7+rs8 ,7gf mz ony3*rpna* ross 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 frictioymo7 g4pz3rt4*s 7z+rs ,r8nannz*pfn 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 p- zit2pqx6r;a atch 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 dry ro 6 ;-irpzxqt2aad 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 ug4h( 47clhly car's brakes and skidding toh y7l(4uglh4c a stop. 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 each of:tqkv ekr x lv+4l0n*. the following devices. Which of these devices can v.tkq+ll*0rxvek:n4 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 is 24000 newt*q9v2 u0-lnn5r/v-nlf kwdn pons. About how much time is needed to increase the rocket ’ speed from 12 m/s to 36 m/s near thekr 5l0nlvq2 ud 9n/nv-*pnw-f surface of the Earth at takeoff?

  07.21: A box slides to the right across a horysw 07f3g+pwef e8(ryizontal 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 laryr8yes 7p3+we(fw0fgge 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 coaster tracks of equal length. Ad 1k*8c39.ipk v yz angdus5o,ssume that on all tracks the roller coaster carts start from rest at the same elevation and mvdoz*kna8 u.p d c,gy9i1 ks53oves 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 roller coaster tracks of equal length. Ass7vzx p2hy4ft. e:5 qudg ul9-gume that on all tracks the roller coaster carts start from reg- fu v9pduhyl g5zt.:x4 qe72st 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 rollercoashf)6mtvef 0 1iter cartrolls frictionlessly along the curved track from point A to point C under the influence of gravity. What would be the direction ovtf0m e6ih) 1ff the cart's acceleration at point

  02.40: A box with a ma-qn+((q z(acfoct 9o vss 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 between the box and the floor if a 250 newton force on the rope is required to move the crate at a constqvz c9ofc +ao(( (nt-qant speed of 20 m/s as shown in the diagram?

  04.40: A 6.0 kg block initially at rest is pushed agaihyu) lk *uy8gew;d* c bkx+83nnst a wall by a 100 N force as shown. Thecoefficient of kinetic friction is 0.30 wxbk*3 ;euwnly *8hd c8+)ugk yhile 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+ fkhtg5igb n1p( nfzw52e3g 4 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 relationgw+4knhz35enf ig5 bp1ft(g2s among the various force magnitudes, W, f, N, P is CORRECT?

  06.14: A book leans against a crate on a table. Neither35f/cp+em jkh is moving. Which of the following statements concerning this s5 /f3kce+mjp hituation is CORRECT?

  06.15: A crate of toys remains at rest on a sleigh as the sleigh is pulled up a ye 4:5fwbv*reji.z9v 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 hil*r b 5iw:vze9yj.e fv4l?