99.36: What happens to the inertia of an object when its velocit1y63jfl6;s. flzsjtn 1u0 wp ny is doubled?

  02.14: An intrinsic property of eoxae9 rpc44si2()v jiz:6t g matter is one that does not depend on the quantity of matter prep4xa rie96 egjz:c ovti42s) (sent. Which of the following properties is NOT an intrinsic property?

  04.16: A 20 kg boulder rests on the surface of the Earth. Aezz tk,:w *mg(ssume the Earth has mazkezwm ,*g :(tss $5.98 \times 10^{24} \; kg$ 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 tmh;d +ka,0gud he surface of the Earth. What is the magnitude of the gravitational force acting on the earth by the sp, gdh;adk+0 umhere? The Earth mass is $5.98 \times 10^{24} \; kg$ .

  00.09: Is it possible for an object’s 7ub+s;d4xit w)vqv0uh *x zs1 velocity to increase while its acceleration de 0xvsu*tbsd; )qzx1 i7+h4uwvcreases?

  00.11: A certain particle undergoes erratic motion. At evcl;)l vc6bxsl i/gff .*bzp*;ery point in its motion, the direction of the pb;.fz6c ;)*/lpxgs fbciv ll*article’s momentum is ALWAYS

  17.14: A block is suspended *fwz 456vi quyin the air at the end of a string held by a person. The person pulls on the string uniformly accelerating the block upward for zwu5q * 6yivf4a 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 followingrn02 p bgja)d**q qbf: situations is the net force constantly zero ong)j*0dbnb 2rfa* :qpq the object?

  13.28: An object is in free fall close to the ground. A person intervenes t-.imyejvn t 0+fh *zkf4y/w;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 magny hniyz;mj. /k0f tf +wt-*ev4itude 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 N0unua qt ;6i;v, F2 of 50 N, and F3 of 70 N, acting on it. The magnitude of the resultant ofF1 and F2 ii 6q0 vuu;;ants

  01.07: A force of 6 New5mo*km *jgb 6s8s hwn)ic,-2lr) dqxatons and a force of 10 newtons can be combine to form a resultant with a magnitm )gblo,i )kx6qs2h8 - n**jdsamwcr5ude of which of the following

  10.06: Which of the following statements is most closely associated wiu7 yna2b9z b+ath Newton’s Third Law of M aa9byu2n zb7+otion?

  95.06: The reaction force does n6). vvc;snznn )g s8dban2x7vot cancel the action force because:

  14.14: A box rests on the floor of an elevator. The eleve0v tmv+zrq; a m/g 009be-nviator is accelerating upward. Which one of the following choices bestt/ v i0zbmag00ne-ev+q ;9mvr 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 6qdyal5 ma9g0air with constant speed. Which one of the following choices correctly describl dgm5y96a0q aes the 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 wip42q14p mte5a p3 yxpjth a speed of 35 m/s. The batterswings and hits the ball. The magnitude of the force thj4q3ppyte1 x a52p4 pmat 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 (ypoc xb7e.a*md9sq9)xo/ et a calculator, also at rest. Which one of the following choices is the Newton’s Third Law pair force to the force that the table exerts on theceq) (stxdae*99y7o /.xm o bp book?

  05.06: The students in a Physics I class were in lab conducting anuxbd3wk 2okxy 20gw (4 experiment related to Newton's Second Law. The collected data were displayed on the graph at the right. From this graph, what conclusions ca0( wdk2 2x4kwou xgb3yn the students make?

  99.03: If the net force on an object were doubled while at the same time mfb*;rm: bz8bthe mass of the 8bb r*: fbmm;zobject was halved,then the acceleration of the object is

  96.15: A car whose mass is 1500 2xddz r7*v9wfkg is accelerated uniformly from rest to a speed of 20 m/s in 10s. The magnit2xrv dzfd9 w*7ude of the net force accelerating the car is:

  99.05: A tractor-trailer truck is miwd 8x0; ew(ui-w+z gtraveling down the road. The mass of the trailer is 4 times the mass of the tractor. If the tractor accelerates forward, the force that the trail uwe-0z ii+g;wxwm8 d(er applies on the tractor is

  99.16: Which of the fp9j.h2 e tbq jmsf43;zollowing principles best explains why large tractor-trailer trucks generally accelerate much more slowly that ajf bp 4z t.9esq;23jhmutomobiles?

  99.19: A 50 kilogram skater at rest on a frictionless rink thr0b;-i):*k4c,l gsylsx t(a ds) icanfows a 2 kilogram ball, giving the ball a velocity of 10.0 m/s. Which statement describes the)lfy )c,s4gaic db;i0sx a-*ks:tl( n subsequent motion?

  00.13: An object near the surface of the eaosij,6z f k7,arth with a weight of 100 newtons is acceleijs z k,f7a,6orated 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 a co(b4haz3vki w*;6 qgj pnstant force of 2400 N. What is the speed of the car 8.0 s after begiw46g(k*p vh;jb aqz3inning?

  98.32: A 3.0-kg block with initial speed 4.0 m/s slides across a wqgt58gu+i8g r :+np, *rqvtnrough horizontal floor before coming to rtru iw,+gvgq ng n8q: 8+ptr5*est. 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 4.0 m/s slides 8.0 m across a ro pi).n oz d217qe4n n8nvxl(opugh horizontal floor before coming to rest. The (ep.x v)nnpdq8 z 14oloi72nn coefficient of friction is:

  09.21: A 20.0 kg box remains at rest on a horizontal surface while a person pulc bjab3h ;b8sno l0u:0bx-0w0 . fgp yriys)8shes directly to the right on the box with a force of 60N. The coefficient of kinetic friction between the box anll8x3a0uh;b jb c)fs0w-n80i sprb.0boyg y:d 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 uniformly7zr-ec/p5k zaomka - a/r ,)cn to rest on a horizontal surface. The block travels a distance ofp,5e)oa- kcmzc r-rnk/7/ aaz 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 ocm: /gzk2;t p5gpwg. 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 fg;c 2m.ogp /5zpgkw :triction 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 its(u ;voseq n8c0 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 dryu8 c(qo0nv ;se 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's se;. *targ)pot, ut d1brakes and skidding to a stop. How far would the car have skidded if i1psdagtu)e* .t o rt;,t had been traveling twice as fast?

  99.39: The driver of an automobile mustsgb e1qp0r lma13y6r/ carefully control each of the following devices. Which of these devicesars 0b /3gelyp 61qmr1 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 n2xy(j1mi3wfugzl*yr 40 +tqn ewtons is 24000 newtons. About how much time is needed to increase the rocket ’ speed from 12 m/s to l4xz0runf*qg +3jwyi2m t(y136 m/s near the surface of the Earth at takeoff?

  07.21: A box slides to the right across a horizontal floor. A person called T.*y b7rynvq3 sjll6vb0j3o4 k ed exerts a force T to the right on the box. A person called Mario exertsn3 jslyyb0k7vrb j43l*. qov 6 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 coaster tracks of equal length. Assue8z;4j pkmdqn/ nz4lw . )/ipgme that on all tracks the roller coaster carts start from rest at the same elevation an4./pw)gl zpd4nz; jemik 8/q nd 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 roller coaste*p6-jk5en8 jab-zhl7f ftm n (r tracks of equal length. Assume that on all trackj(nza 57p6b8 *-lfkfte mn hj-s 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 cartrolls frictionlessly along jd+e6x,qyp9g.ho fy( the curved track from point A to point C under the influencoy9.e ,xypd6+(gqfjh e of gravity. What would be the direction of the cart's acceleration at point

  02.40: A box with a mass of 50 kg is dragged acq4usyja; in9weg y ks5)er -+*ross the floor by a rope which make;+)4qay eyiw -nje uks59s*rgs 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 constant speed of 20 m/s as shown in the diagram?

  04.40: A 6.0 kg block inu- :*) ;fx /jkukhuv8ct1jmgtitially at rest is pushed against a wall by a 100 N force 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:x8g)j;kkvc/ u*tu1f hu- m tj on the block after a time of 1 second?

  05.10: A homeowner pushes a lawn mower across a horizont; ;dfyff,knn (donb,4/*pum qgocf :/al 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,p gn4 /dmyn;ff; o fb/kf :nq,(douc*, N, P is CORRECT?

  06.14: A book leans against a crate on a table. Neither is moving. ,re 6o0avme9z 2rygg/Which of the following statements concerning this situation is COmg09ag2z6e or vr e,/yRRECT?

  06.15: A crate of toys remain 9cd61e5uu;zx hh;vqms 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 sq u 19uczvmd56;h;xheleigh. What force is responsible for the crate’s increase in speedup the hill?