99.36: What happens to the inertia of an object when its veloc w t6kvu4(yfv1ity is doubled?

  02.14: An intrinsic prp 7;r4giotr +ny-xt+4j ycj z9operty of matter is one that does not depend on the quantity of matter present. Which of the following prop t4zx+y7jryi9t;cr+ jno- g 4perties is NOT an intrinsic property?

  04.16: A 20 kg boulder rests on the surface of the Earth. Assfz1epv 9fx +b,g (xp-sume the Earth has mass p xbv e+sfxg-1z,p (9f$5.98 \times 10^{24} \; kg$ 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. What is the f.q6nd; baa:a 3;cxoe magnitude of the gravi6fo;acx: b .qd ean;3atational 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 kwl4h zw:/6fe to increase while its acceleration decrw6fzewk:lh 4/eases?

  00.11: A certain particle undergoes erratic motion. At e:veras zg,96nvery point in its motion, the directionsrng e,v6z9:a of the particle’s momentum is ALWAYS

  17.14: A block is suspen(jtu3m/gz1qor+u5 loc qc91 b ded in the 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 correcj1q53o 1 l(ccqr ub/mtg u+zo9tly 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 + +iw)razmdj,xf :cz :is the net force constantly zero d ::w)mxar, +izzj+cfon the object?

  13.28: An object is s8d blxqd/n +)in free 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 acceleration of the object as it is being stopped by the person? The magnitude of the object’s acceleration is a and the magnitudel+db )8/dsnqx of the acceleration from gravity is g.

  98.03: An object in equilibrium has thre gweg mmt8ty6rhyu1z61j k :-;anj1; ce forces, F1 of 30 N, F2 of 50 N, and F3 of 70 N, actinguzjtk1jh-8er mn w6y6ya;;:gcmgt11 on it. The magnitude of the resultant ofF1 and F2 is

  01.07: A force of 6 Newtons and a force of 10 newtonsbwci texn5/mp (8;(pc4fc u2e can be combine to form a resultant with a magnitude m(;be8/ccc5u p2 tfn (iwxpe4of which of the following

  10.06: Which of the following statements is most /d z8syu q,cej9m+3gbclosely associated with Newton’s Tdge+y, zmq ju9s /8bc3hird Law of Motion?

  95.06: The reaction f* x1yk(*bi4 dd(qpc eiorce does not cancel the action force because:

  14.14: A box rests on the floor of an elev5 86lc:fqp7p sbaw r9zator. The elevator is accelerating upward. Which one of the following choices best representsfz5: s 7p8awbclqr6 p9 the Newton’s Third Law pair force to the gravitational force acting on the box by the Earth?

  15.15: A skydiver falls downward th: j8hr: l8t u/injo1td5szn8trough the air with constant speed. Which one of the following choices correctl8hn1ust no5zjtr/d :8t :8jily describes 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 speed of 35 m/s.61zsa3dud9vzigqu k-sl4s ( 8 The batterswings and hits the ball. The magnitu6sdgi kz3u(4u zsl1sdav8q 9-de 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 is a c(hq(66krb l;a//q)/w1vse pg c kly iralculator, also at /)6cqylwkh6 (q1bka lse;(g/pv r/r irest. 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 a,wy k/io w*,lpn experiment related to Newton's Second Law. The collected data were displayed on the graph at the right. From this graph, what conclusions can the studi,owl/y k*w,p ents make?

  99.03: If the net force on an object were doubled while at thn5zeg6f, p loar.j o,;e same time the massnzorfjoale65 .gp,, ; of the object was halved,then the acceleration of the object is

  96.15: A car whose mass is 1500 kg is accelerated uni iu5sp913j bgbformly from rest to a speed of 20 m/s in 10s. The magnitude of the net force accele pgs35bi19 ujbrating the car is:

  99.05: A tractor-trailer truck wq dy9zk1(*w(xru tj2 is traveling down the road. The mass of the traileu(qtx1jk*z2yw wd ( r9r is 4 times 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 princip p ;i:kr5zjm2-r4jgy yles best explains why large tractor-trailer trucksj ip- rm;5rgyz jky42: generally accelerate much more slowly that automobiles?

  99.19: A 50 kilogram skater at rest on a frictionless rmr -iqq f-6.v,ah4iuqink throws a 2 kilogram ball, giving the ball a velocity of iua.4iqr q,m-q6h- vf 10.0 m/s. Which statement describes the subsequent motion?

  00.13: An object near the surface of the ea)v ya.oj,zpt nr8e6g4rth with a weight of 100 newtons is accelerated a) 8 n,torjv4e zgpa.6yt $4\;m/s^{2}$ . What is the net force on the object?

  98.25: A car whose mass is 1200 kg is accelerated from rest by a 1wy nr0,r qdtc1)x*ldxyk6w ;constant force of 2400 N. What is the sp6 ,ql) x*dxd;t1yk10ywcwn rreed 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 rough horizt;;lxr,d/9 c03shipi mr itpe). 6 hmnontal floor before coming to rest. The frictioni0)6ep.;r h,tm/rmt 3 ipl;hsdx9i c nal 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 velocityl8ozgw1 3fmx 0g0f-t,bult 9x 4.0 m/s slides 8.0 m across a rough horizontal floor before coming to rest. The cl8tff-00mx u9x tg z1 l,g3owboefficient of friction is:

  09.21: A 20.0 kg box remains at rest on a horizontal sur s9ok3b.n.bpqface while a person pushes directly to the right on the box with 9.snobqp .bk 3a force 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 on a hori u.u6te;q,t aqqu -y(krp n)k9zontal 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 betuatqt qpk(,;.nq k 6ur)ey9u -ween the surface and the block?

  00.21: A car of mass .fspzlsn81kk;hr9 c( ,sm to(m slides 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 between the tm(8pfo9; (skktn1.s, hz rlcsires 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 q2lp 3s-qgh,g1+qnmu46oi n q at a speed v with its brakes locked. It then hits dry psh1qqqng2uo+,4-3q 6lmig np avement 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 7vq4txwp2 l(i,b c; kjon the car's brakes and skidding to a stop. How far would4,vqlk pj;7w(ix2bct the car have skidded if it had been traveling twice as fast?

  99.39: The driver of mfq.0t48:elappt6gfx k *lw7kz (i ,tan automobile must carefully control each of the following devices. W.a i70ql pkf *lg8kmf tpt4w,6tex :(zhich 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 rocket with a weight of 15000 newtons is 27v avtrfl 9(pn0qvleca4u: sn58 3ew) 4000 newtons. About how much time is needed to increase the rocket ’ speenncuw0l 5tl8esv (ef:9a3pv7 4a r qv)d 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 flofsnz-2xuwsa z9zgt, 3rum93 qjs +- n3or. 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 tha 2jr szsw- 9aug,nn33 fqz mz3u-9+txst 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. Ae 5fg nxa2bduw0 j5w.aisrm 7f0ki k0b138ft/ssume that on all tracks the roller coaster carts start from rest at the same elevation and moves frictionlessly overug7waf tj 08 rifdi20b/50kxn5.a sk bwef1m3 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 u sd3rj4f, z*,q +3j;is v)p nz3gucx1a9o xvitracks of equal length. Assume that on all tracks the roller coaster carts start from rest at the same elevation and moves frictioz+ir3u3)ozs9jjqdc 3vx 4 i *;v,f pxn1suag,nlessly 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 fri3aba h:egyl 8((. hknvctionlessly along the curved track from point A to point C under the influence of gravity. What would be the direction of the cart's accelera abg(n:eh l a3.hy(v8ktion at point

  02.40: A box with a mass of 50 kg is dragged acrossuf)aoa xv8gvatt 4:,74 o)fcn 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)t4a:8ato4 a gnfcfov7)v u x, 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 pushed against a wall by a 1-(m 2c 6rwjkocypk w.fs,9sf800 N force as shown. Thecoefficient of kinetic friction is 0.30 while the coefficient of static friction is 0.w.k 9y8w-pfscr sm,k cj2( o6f50. 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 p c y;.ody emkp0+kelhy-,v*1natch of grass with a constant speed by applying a force P. The arrows in the diagram correctn*lk,eh.yp; kevd o + 01-ycymly 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, N, P is CORRECT?

  06.14: A book leans against a crate on a table. Neither is pg l+io3;ot zhog, 8 z0az9(1f*o x giaxw6.fzmoving. Which of the followin9wf;oh0 6o px+ z3zozgiil ,g .g1zaxf(t8 *aog statements concerning this situation is CORRECT?

  06.15: A crate of toys remains:ys +7j(ut0emy jlu7 s 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 sleigh. Whyt es+ uu7:70mjj( lysat force is responsible for the crate’s increase in speedup the hill?