99.36: What happens to the inertia of jzzngwa 8q7a- ntx93 k;uf(e5an object when its velocity is doubled?

  02.14: An intrinsic property of matter is one that does not depend on the quan(c0; 9 oss*, atorqohrp,i/a ntity of matter present. Which of the following prope,9,cr ;(oa sqth/0n opir*aosrties is NOT an intrinsic property?

  04.16: A 20 kg boulder rh6qc8s*jp,q/l jk4d/i(l qjo ests on the surface of the Earth. Assume the Earth has mass l/4 8,jkcpsh q*oj6jd q/i lq( $5.98 \times 10^{24} \; kg$ 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 n9jf x(n7f 8lkyear the surface of the Earth. What is the magnitude of the gravitational force acting on the earth by the sphere? The 9 y8 l(njf7kxfEarth mass is $5.98 \times 10^{24} \; kg$ .

  00.09: Is it possible for an object’s velocity to increase while itsq8i)a f;3hwr/hbd. q fp/*q oy acceleration decreaseiw/) bqrpfqoy3;dh.8hq/a* fs?

  00.11: A certain parti f. 7mk,,rn,geuibwq 9wrt 5.lcle undergoes erratic motion. At every point in its motion, the direction of th f5uei,.7,tlnbm. k,qr9rgww e particle’s momentum is ALWAYS

  17.14: A block is suspended in the a/maad jtsv 662f. /6kaufvit.ya x*u)ir at the end of a string held by a person. The person pull)mix* v d a/2 ast6 tvyu.6aujffk6/.as 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 on the block?

  07.18: In which one of the following situations is the net force constantly z8ej(g:0 ick6wa5 cezi)j,uwnero on t wgae8i, e:njc)6 (jz k5icwu0he object?

  13.28: An object is in free fall close (iaqjy bb ixm.31f5y3 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 ofx153a.y(mjbbiq fyi3 the object’s acceleration is a and the magnitude of the acceleration from gravity is g.

  98.03: An object in equilibrium h3kgiv md h2)6(r)vig78ebk)b v) klzhas three forces, F1 of 30 N, F2 of 50 N, and F3 of 70 N, acting on it. The magnitude of the resulkz))2ik h8vh)mib6vgb (ekr)dv7 g3ltant ofF1 and F2 is

  01.07: A force of 6 Newtoet4 qa/uh/5 fk+o e6dcns and a force of 10 newtons can be combine to form a resultant with a magnike fu/6tq aoe+c/4d5 htude of which of the following

  10.06: Which of the following statements is mj x ,49ud gas,qa1 ktfi(-qzd,ost closely associated with Newton’s Third Law of Mod -uxdzs,( jg,f4 9at,qik1 qation?

  95.06: The reaction force does not cancel the action force becaust.n nuvlq:9 y2e:

  14.14: A box rests on the floor of an elevator. T2 hicc1gg: 1elam2 3duhe elevator is accelerating upward. Which one of the following choic i mug2c12 ha3elg:c1des 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 downwfja;; sp5:gnm moevh+yv 141k*r c+zward through the air with constant speed. Which one of the following choices correctly describes the Newton’s Third Law pair force to the air :ocm a+*s z 15fejknv1prmy;;g +h4 vwresistance acting on the skydiver during the fall?

  06.08: A baseball is thrown by a pdjt8g uk g4 3(9/zs8ld4yapqw*a j)cvitcher with a speed of 35 m/s. The batterswings and h/)v8kl8dj w9 j43duaysc g4qz( at*pgits the 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 the book-aqc7dy e2/ s (hkr,ak is a calculator, also at rest. Which one of the following choices is the Newton’s Third Law pair foyhakc k-e/, 7s(ad2qr rce to the force that the table exerts on the book?

  05.06: The students inm uq+ xfl*3g rzp8r+5tj+,mge a Physics I class were in lab conducting an experiment related to Newton's Second Law. The collecj,x3+rlp* 8e +5 rq mumtzgg+fted 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 objpg b3x/mk pa)8ect were doubled while at the same time the mass of the object was halved,then the b8 )xgpmap/3 kacceleration of the object is

  96.15: A car whose mambs k6oy+65bay( lh*lss is 1500 kg is accelerated uniformly from rest to a speed of 20 (lsh5y*y +b km66olbam/s in 10s. The magnitude of the net force accelerating the car is:

  99.05: A tractor-trailer truck is traveling down the road. Theie zo0m/pf7a 3 mass of the trailer is 4 times the mass of the tractor. If the tractor accelerates forward, the force that th/a i po3e0zf7me trailer applies on the tractor is

  99.16: Which of the following pr.v 9kwpz;iie 3inciples best explains why large tractor-trailer trucks generally accelerate much more slkze.iip;9vw3 owly that automobiles?

  99.19: A 50 kilogram skater at rest on a frictionless rink0n ib4phc 6j)ol3 f.td throws a 2 kilogram ball, giving the ball a velocity of 10.0 m/s. Which statement desctnp4 3f0 io)jcbl .d6hribes the subsequent motion?

  00.13: An object near the surface of koz i6mpfi4 7hgf))r x93)ejooo)5bothe earth with a weight of 100 newtons is a oiko6px)))r5g j7boo9m 4e)oi3zh ffccelerated 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 ru7,z9r0f:nrayw1 r c constant force of 2400 N.rr 1yn :z970fracu, rw 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 slide.z:io,n b3ssz wcz+zyx5khs5/ ab n))s across a rough horizontal floor before coming to rest. The frictional force acting on the block is 3.0 N. How far does the block slide befozzsn sba3 xz .k:c/i ns,)o5z+b)wh5yre coming to rest?

  95.38: A block with initial velocity,y6,** ph/gjb yjfncr 4.0 m/s slides 8.0 m across a rough horizontal floor before coming to rest pj6ch,n*fjr / yb,yg*. The coefficient of friction is:

  09.21: A 20.0 kg box remains at rest on a horizontal surface while a person push+*ukyws cwpu z-g8nntho538 7 es directly to the right on the box with a force of 60N. The coefficient of kinetic friction between the box and the surfu gwhn*n7 szoc8y8up3tk5- w+ace 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 aek i:p3z ,f9 7zy4+ozdjh8wd bt 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 represents the coefficient of kinetic friction between the surface and the kd+4o97zyz: wz ,b3dpfhjie 8 block?

  00.21: A car of mass m slides across a patch of ice at a speed v with its ac ru0 eo +9*b81zkxl*epn +yybrakes locked. It then hits dry pavement and skids to a stop in a distancno9yl+*1ec u+yk*bxa ze0rp8ed. 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 slides across a patch of ice at a speed v with its brakj4z12vt o z:x)d(silqes locked. It then hits dry pave( l)x st1vi4:qo2zjzd ment 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 speed of 2v, it would have skidded a distance of

  04.32: he driver of a car makes an emergency stop4g2w: nvppr ) rea 5ez,bo1uz9 by slamming on the car's brakes and skidding to a stop. How far would the eu5)rzoa g9p4 bpr1ve :nwz,2 car have skidded if it had been traveling twice as fast?

  99.39: The driver of an automobile must carefully control each3 q0ra 6tfid5:yzj w6fjpb,4o h.ct2l of the following devices. Which of these dev40i cfzlb6r2p5.o3d,w6qytj t:fj haices 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 rocketc))mw *p u6nkd with a weight of 15000 newtons is 24000 newtons. 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 knpumcw*) d)6 takeoff?

  07.21: A box slides to the right ac lpg-a(go mdd4* hodhb+kn 44;ross 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 m(g+ hk*nb4da l;-poo d4ghd4 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 coas(y0.knvv3 zlsof uo/p942b -zlzhp 7gter tracks of equal length. Assume that on all tracks the roller coaster car/ 0kfl2b.yo h3-7(4zg9lo zvunsp zpvts 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 be traveling the fastest at the finish?

  02.28: The diagram below shows thre6guz1*uvnf*vvl n-r 8 +0sbahe 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 over8l6n1vgvzbv*fas0u- *rnh+ u 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 rollercoas97lwf helf3 8ac5xfa 3ter cartrolls frictionlessly along the curved track from point A to point C under the influence of gravity. xlf75fa9w8 c3 lfaeh3What would be the direction of the cart's acceleration at point

  02.40: A box with a mass of 50 kg is dragged across the floor by a rog cv.7.mdt+bape 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 constant speed of 20 m/s as shown in the gdabm7 .+.ct vdiagram?

  04.40: A 6.0 kg block initially at rest is pushed against a yg9qk: o8s6gnwall by a 100 N force as shown. Theg k:ny8q69sgocoefficient of 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 horizontal patch of;7kt 8ww3o/mmv mj t3o 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. W 73t 3omk8 /wv;motwjmhich 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 isab,e* jsmnz/e 4j2ak3(ztxd 4 moving. Which of the following statements /xmt*n2e4jb zaj k4sed 3a z,(concerning this situation is CORRECT?

  06.15: A crate of toys remains at rest on 1hd9oco(5pxp(h- mev v:jgp9wj3h3dj3-b p v 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 h( co v hpj v:-bhgom91vxd3w3( -phj5p9j3depill?