99.36: What happens to the inertia of an object when its velow+h+ g piqe2gi;6ler dwr-)0hcity is doubled?

  02.14: An intrinsic property of matter is one that does not deva-+uaam;pqkt 0xk)cg8l2m e 5i(* by pend on the quantity of matter present. Which of the following properties is NOT an intrinsgxk 50kpamiya +2-ml( at)q *vu8;ecbic property?

  04.16: A 20 kg boulder rests on the suraq/oip -ty m.,face of the Earth. Assume the Earth has masqm oa.yi-/p t,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 near the ss.o/97*c vf qys5)lmoh zb5sy urface of the Earth. What is the m* fov. z597)hq /o5ssmblycsyagnitude 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 fo2g orq tr7h:n,m93q 1fe+ hohjr an object’s velocity to increase while its acceleration decreasqmfe1 27jr:nt rh h,o3hg9o+q es?

  00.11: A certain particle undergoes erratic motion. At every point in its motioi(yr0pl g(vu5ff 2 *ayn, the direction of the particle’s p a2*0vr(yg u(5f fliymomentum is ALWAYS

  17.14: A block is suspended in t5uzl-g ozuh2 (he 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 time. During this time, which one of the following choices correctly identifies the New -u(goz2h5 uzlton’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 force1i7a(mh*ub f) eik vs3 constantly zero on th)i1m * ki 3eu7sfvhb(ae object?

  13.28: An object is in free fall close to the ground. A person interd1bc wo hwhp, nio)2x8(ww7 z6pn:7hrvenes 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 gr8r,idxb1pohznc: n(ww27h h)ww6p 7o avity is g.

  98.03: An object in equilibrium has threok4 6 wq4:gu;kh) ubpsaf; v-ke forces, F1 of 30 N, F2 of 50 N, and F3 of 70 N, acting on it. The magnsqkv a owkk4h gbu-;4f:; )p6uitude of the resultant ofF1 and F2 is

  01.07: A force of 6 Newtons and arv xg74f. 1ahtbyzj s+y 6(dckf3m( 4w force of 10 newtons can be combine to form a resultant frk.y+ ts 4bh mzv(4cd3jfw(x7ay 6g1 with a magnitude of which of the following

  10.06: Which of the following stagttzc fsc:p/57b9/ax tements is most closely associated with Newton’s Third Law of Motion?a/c t9 tx/bf: gzscp75

  95.06: The reaction forp(uc3 e3m0mw0b 9krx zce does not cancel the action force because:

  14.14: A box rests on the floor of an elevator. The elevator is accelera 92r fpnyb5c1ec 3/zo )f,mofating upward. Which one e9 zp,fo)rn bffaymcc5/ 213o 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 downwaau2wt:.b n wd6.8zp2kd25kqlg gk bo3 rd through the air with constant speed. Which one of the following choices correctly describeptwqgbk2ok dl5dz.bg :au.2 8 3w62nks 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 with a speedk;dw06x uitk/ of 35 m/s. The batterswings and d0itwk/ux ;k6 hits 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 zn6(ik(o,ow jbvn ;)c is a calculator, also at rest. Which one obin)v(;6no ,kzwjc (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 ljfc +m7b1frsiw17t 5q4-k+azx:c gmin a Physics I class were in lab conducting an experiment related to Newton's Second Law. The collected data were displayed on the graph at the right. From this graph, what conclusionj-71z rafxtbf c4sl+:m +5iqck1 7w gms can the students make?

  99.03: If the net force on an ob0*w 0 drayw)ht+:aq k 5x-jvnqject were doubled while at the same time the mass of the object was halved,then the awj* xda 5:kvqaw0-yr+)q 0htncceleration of the object is

  96.15: A car whose mass is 1500 kg is zo(4 or xw)0j6 kvo:osaccelerated uniformly from rest to a speed of 20 row64kx:( v) szoj0oo m/s in 10s. The magnitude of the net force accelerating the car is:

  99.05: A tractor-trailer truck is travelino8zjz54 xfh6t8bm -h5 zwd g4cg down the road. The mass of the trailer is 4 times the mass of the tractor. If the tractor accelerates forward, the fo zbzhmx-gct58fojh 4d z4w658rce that the trailer applies on the tractor is

  99.16: Which of the following principles best explains why large tractor-trazsdi3pym9/8aci6 6jfe u bsn 651j /nfiler trucks generally accelerate much more slowly thats681if5n jm/bjz6payi f 93s/ ndeuc6 automobiles?

  99.19: A 50 kilogram skater at rest on a frictfh3 m5rs 6,sat+y+6xex ct/nrionless rink throws a 2 kilogram ball, giving the b3ax hx,s6/t rrc6ne5mys +tf+all a velocity of 10.0 m/s. Which statement describes the subsequent motion?

  00.13: An object near the ) josf( )3wgresurface of the earth with a weight of 100 newtons is accelerated agosw3rj f)e)( t $4\;m/s^{2}$ . What is the net force on the object?

  98.25: A car whose mass is 1200 kg is accelerated from rest by a constant force nu1ku* gr5u:fhr;53 esx9ej e of 2400 N. What is th3k 1n : r;g* ujx55e9ueefhrsue 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 robv* r,unq 4gn4ugh horizontal floor before coming to rest. The frictiongn4v4* b,uq rnal 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 8inb- u ft-2me*bx;qo+.0 m across a rough horizontal floor before coming to rest. The coeffici *xmioq +2nebbt f-;-uent of friction is:

  09.21: A 20.0 kg box remains at rest on a horizontal surface while a pempt:9oj1u o d 5ns6vq:rson pushes directly to the right on the box with a force of 60N. The coefficient of kinetic friction between the box and the su 6uoq n:j5:spdv1to 9mrface 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 on a horddy z6mi(oy4:x rs 8.uys2cckdx( v* l;/iq8u izontal surface. The block travelsvxyxck;:ilz.rq 8( /s yc4u6dyoimds2u 8(*d 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 block?

  00.21: A car of mass m slides across a patch o 76 htt29akmvw/6lxeri. dkf7 f 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 ftat9w27/.7xlkm6rdvk6 h e i 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 sl)2 t6spc6a0*asezu n rides 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 betwea*6st cn ps62a re0z)uen 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 emeryf,dpvm 1qn 4yc nk9w(/) vs.mgency stop by slamming on the car's brakes and skidding to a stop. How far would the car have skidded if it had been traveling twice aswqmkmfs9n( )1y yd,/vnvp c. 4 fast?

  99.39: The driver of an automobile must carefully controzx09wcw+( fjgx7a 7 ry us;ra)v-eyc2 l each of the following devices. Which of these devices can cause an acceleration in a movij-wawf cyvurax(yxs )z70 ;7c r29eg+ ng 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 neq:i5j eq + 6ly+nrhe1c2huz)x wtons 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 takeoe5+j hec:1) qryxuqn+lhz 2i 6ff?

  07.21: A box slides to the right a(nwdgqw1qxvv8i7ayl )/o z+ 9cross 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 andxq8qy)dw(i9zo +7l wv/nva1 g the box accelerates to the right, rank the sizes of these three forces exerted on the box.

  02.27: The diagram be/+ibgrh672s a gvua +plow shows three roller coaster tracks of equal length. Assume that on all tracks the roller coaster carts start from rest at the same elevation an v2+abripu7gsa gh/6+d 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 showy29*/mg ,r vlq/m:e n /+ qh6jmnnxrtbs three roller coaster tracks of equal length. Assume that on all tracks the roller coaster carts start from rest at the s,x:m/t qn* rrmbnqegmv2/hl+/ynj6 9 ame 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 fo;5d ag/hj; +a y/alvurictionlessly along the curved track from point A to point C under the influence of gravity. Whau l+dgav y5;jo;a/ah/t would be the direction of the cart's acceleration at point

  02.40: A box with a mass of 50 kgsosoxkd,oy,vj(r /2dd ,. 2gr 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 constant spee go.(2r,dy v,,k sdordsxo2j/d 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 zzt( ag/e*au;h3qig9 100 N force as shown. Thecoef;3hug* gaqziea t( 9z/ficient 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 acrossj3 qx2qq mm.a. 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, max jqm32q.. qN, P is CORRECT?

  06.14: A book leans against n /n lb6y,iuxorw-p69a crate on a table. Neither is moving. Which of the following statements concerning this situation is nl6pwb9xui- /yrn6o ,CORRECT?

  06.15: A crate of toys remains at rest on a sleigh as the sleigh is pu.( y m7e psc q60ct;agxgvh8)plled up a hill with an increasing speed. The crate is not fastened down to the s6 80x(tysa7 e mpg.g)cpvqch;leigh. What force is responsible for the crate’s increase in speedup the hill?