99.36: What happens to the inertia of an vte,xuiyi7 2h8qgg/: object when its velocity is doubled?

  02.14: An intrinsic property of matter is one that does yv0r-p63,8ibntw ydn vvmz1+ not depend on the quantity of matter present. Which of the following properties is NOT anz 6yv-83rd0wv +m in bn,1ptyv intrinsic property?

  04.16: A 20 kg boulder rests okh / d7rm8a.ey,chs:rn the surface of the Earth. Assume the Earth has mass :,c8e7sdh a k/m hr.yr $5.98 \times 10^{24} \; kg$ 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. Wha 935pgzr a hdco7-x:uat is the magnitude of the gravitational force acting on the earth by the 37haru 5pgzoc x9a-: dsphere? The Earth mass is $5.98 \times 10^{24} \; kg$ .

  00.09: Is it possible for 4s-nz1li3;vloi)bl,cr ,29nu gyq akan object’s velocity to increase while its acceleration decreal, 2,vy;o4nin gi )zr9l1q calus3bk -ses?

  00.11: A certain particle undergoes erratic 3s cfwew * ukaaffw5;(xg3b 5/ot0mx2motion. At every point in its motion, the direction of the particle’s mom/3waxc fog5swmb *52;0tu (xkwfa 3feentum is ALWAYS

  17.14: A block is suspended in the air at the end of a stringhrb2km)k- q x1 held by a person. The person pulls on the string uniformly accelerating the block upward for a short time. During this time, kmb rx1k-qh)2 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 h(c9e05gl k .zp)o fehl;fzb9situations is the net force constantly zero on the o 0c)zo.fpl ;(9 bkeh5fzg9hlebject?

  13.28: An object is in free fall close to the ground. A person i v3 z77qibavoyv0 :qt7ntervenes 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 ac qv3iay7qov0tzbv 7:7celeration from gravity is g.

  98.03: An object in equilibrium has three forces, F1 of 30 N, F2 of 50 N, 7l/erzgq7qh 6/ g1c cltz:pol /re0f.and F3 of 70 N, acting on it. The magnitude of the resultano:f61 lg0z//el/7 p qchrlctqe.7z rgt ofF1 and F2 is

  01.07: A force of 6 Newtons and a force of 10 newtons cshd+oioq- +7aukqv1- an be combine to form a resultant with a magnitude of which of the foll++adsui1 -q-o o7kqhvowing

  10.06: Which of the following st.r4 ypfyx-1/lehyj 7 5xtuc pzkrk077 atements is most closely associated with Newton’sjx y/ 770.c lypz7yr1rhpxk-tu4 e5fk Third Law of Motion?

  95.06: The reaction force does not cancel the actio (v:(tqg cdp sn8nl w684dxxlye;8z6 sn force because:

  14.14: A box rests on the floor of an elevator. The0i*khs5 -z ; xalkiavmizn6/3 elevator is accelerating upward. Which one of the following choiz* nia ik5s-;mi0 h a/6v3lzxkces 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 throughg3fh96rmcklz :(n 3 rx the air with constant speed. Which one of the following choices correctly describes the Newton’s Th rgh936lknf3 : mzc(xrird 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 speed of 35 m/s. The batiu0 l./ld +kjtterswings and hits the ball. The magnitude oft0/ .kulidlj + the force that the ball exerts on the bat is always

  11.13: A physics book sits at rest on a table. On top ook.aljq 7+ +pzeve,3df the book is a calculator, also at rest. Which one of the following choices is the Newton’s Third Law pa +zopka+.vq3e ,jlde7ir force to the force that the table exerts on the book?

  05.06: The students in a Physics I class were in lab conducting aqhgm7kvi lw-y d1(l)jh ;sbts*6z ,4 yn experiment related to Newton's Second Law. The collected da 4izmqlv w7h, y dbs-k(lh*jyg;1 s)6tta 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 object were doubled while anus/u, lus8 p.c*ic2qt the same time the mass of the object was halved,then the acceleration of t , ui8s*sclc /un2up.qhe object is

  96.15: A car whose m;: zn+m jt rsn k +ts02akg-c)wc/s6pdass is 1500 kg is accelerated uniformly from rest to a speed of 20 m/s in 10s. The magnitude of the-/dnsg+twk)s skcjnm02+; apzct:r 6 net force accelerating the car is:

  99.05: A tractor-trailer truck is traveling down the road. The mass okl3o me 6i*g+nf the trailer is 4 timel m +*knige6o3s the mass of the tractor. If the tractor accelerates forward, the force that the trailer applies on the tractor is

  99.16: Which of the following principles best explains why lar+ ck9w gl;74)o nnbmvgge tractor-trailer tr7kcg4g;)+ ol mnvbwn9 ucks generally accelerate much more slowly that automobiles?

  99.19: A 50 kilogram skater at rest on a frictionless rink throws a 2 kilogram bqf(i o)gt 3l 6,+l t gcb)/)r5ejly:wmqq+fypall, giving the bg q)piofyb5ly3gtwj+,)t(qll6/:m )e rq+cfall a velocity of 10.0 m/s. Which statement describes the subsequent motion?

  00.13: An object near the surfakn1l 6hboqlytrpc , *)j97ud4ce of the earth with a weight of 100 newtons is arkbq) o6p hctyu7lj4ld1n*9 ,ccelerated 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 restu+nw 84i(v-us6 fvun x c2v2mnzapq/( by a constant force of 2400 N. What is the sp+pvfnwann( v2qxm u-/(uvcs izu864 2eed of the car 8.0 s after beginning?

  98.32: A 3.0-kg block with initial speed 4b3:w0fc4cp b*m7qwnk0 nc3 vw.0 m/s slides across a rough horizontal floor before coming to rest. The frictional force7c:3 kwf4v0cn0wc n m wqp3*bb 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 zds-r x s;(gea de 6h,bx7w9g2ou( qh2n*lv o;rough horizontal floor before coming to rest. The c n9el - wgrh eh;dsb* xq s(67z(g2,vxaduoo2;oefficient of friction is:

  09.21: A 20.0 kg box remains at rest on a horizontal surface whto4)ks:b3r9x: 9qos f:unz7qyszs -aile a person pushes directly to the right on the box with a forzfsnozy: 7) ks9sxt9q3ars:q u:4b -oce of 60N. The coefficient of kinetic friction 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 o5d2z .7 xge47gmaj cemn a horizontal surface. The block travels a distance of 12.0 m during the slide. Which me.747d5maxjg z2gecone 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 patchk i mr: cq7bd7h-gj27z of ice at a speed v with its brakes locked. It then hits dry pavement and skids to a stop 7ijd- m77rhbcz 2 :qgkin 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 slides across a patch of ice at a speed /hh x:m8dw*d)utase+vs:*bbv with its brakes locked. +hb/a h*tdv:sw*8emud) b : xsIt then hits dry pavement 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 stop by slamming on the r;oxwq9w 2qph) j8cx* car's brakes and skidding to a stop. How far would the car have skidded if it had been traveling twice as qw 2c)rx*89jo;whpxq fast?

  99.39: The driver of an automobile must carefully control j:g.q h(,j/q1b7h i) gw4fikr;lzyantx-c n.each of the following devic;,g)trh abl(f:zj.hi1wyqx 4c-.nk/nqg7 j ies. Which of these devices 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 m17gmi 4lr./xmz-t +sghk pa,s)n yw4 rocket with a weight of 15000 newtons is 24000 newtons. About how muc4ap) mg,k+wm 7 4msl s1zxty/i -rngh.h time is needed 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 right across a horizontal floor. A person called Tem n):0zza;puc1yt m)cd 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 three forces exerted m1tzuca )my :0)n;pz con the box.

  02.27: The diagram b g,0wwe)f zw9nelow shows three roller coaster tracks of equal length. Assume that on all tracks the roller coaster carts start from rest at the same elevati w0gzefww )9n,on 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 roller coaster tracks of e)4hr6.fnvc0h n t;mu .qyjr( fqual length. Assume that on all tracks the roller coaster carts start.nj)rv6(f4mcrn 0 y.f uhq ;ht 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 cartr5nkm*,a4ngq vda fk w0-w: n0kolls frictionlessly along the curved track from point A to point C under 0q*dv40kakn n5,k:wm na -wfgthe influence 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 across the floor by j5+ 8rrnjlsp -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 thels5j-+ nr8p rj 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 pusz v p.se.l6g;q- vbp,shed 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,p pzlv-. sbve.q sg6; on the block after a time of 1 second?

  05.10: A homeowner pushes alfb y nh2j(:-tu8vwx; 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 :u( fwvxl yb2nj;-th 8necessarily the 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. Neither5u37ztxueq 7x is moving. Which of the following statem z7qx tue35ux7ents concerning this situation is CORRECT?

  06.15: A crate of toys remains at rest on a sleigh as thezhn:t: j q,6qj 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 hinhqj,t: qz: 6jll?