99.36: What happens to the inertia of an object xmt0t w2cyi15 j)je1gwhen its velocity is doubled?

  02.14: An intrinsic property of matter is one that 2z 5i31l diwwsp8r z9bdoes not depend on the quantity of matter present. Which of the following propertieszp513 2 zdwwrb8 isl9i is NOT an intrinsic property?

  04.16: A 20 kg boulder rests on the surface of the Earth. Assume tcg0cuf;sp*c 8he Earth has mass *cs 0ccgupf;8 $5.98 \times 10^{24} \; kg$ 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 fally j zp*t/8t9st near the surface of the Earth. What is the magnitude of the gravitational force acting on the earth b *tp/89stzyjty the sphere? The Earth mass is $5.98 \times 10^{24} \; kg$ .

  00.09: Is it possible for an object’s velocity to inc+jp-bdrln4;;- y muygrease while its acceleration decrease jrgpd+yun4l ;b-m-y; s?

  00.11: A certain particle undergoes uzp e:y8t n0;ierratic motion. At every point in its motion, the direction of thet 0:;ip8unzye particle’s momentum is ALWAYS

  17.14: A block is suspended in the airz tr/tj)x1d+9unsm n( at the end of a string held by a person. The person pulls on the string uniformly accelerating the bttr( nsj)dn 1zm/x9u+lock 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 thttp4 :hp-mbmh2(x9t2qc 8 o kee following situations is the net force constantly zero on th ht: tebo 2-px k9m2mp84tqhc(e object?

  13.28: An object is in free fall close to thesp5 3+pxq nmm kf7+ 6i- (pzv/uy)yfrf ground. A person intervenes and slows the object uniformly nffk+fpz yyr(+ mxpp-mqv7)35u6 i/ s 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 gravity is g.

  98.03: An object in equilibrium has three forces, F1 of 30 N, F2 of 50 N, and F791(rz rjkop.od5t sb l2lfc0r9oj 9d3 of 70 N, a0df.rj9ojsor2r zl5 9cktp d1(o l97bcting on it. The magnitude of the resultant ofF1 and F2 is

  01.07: A force of 6 Newtons and a force of l,g+bbts -6 h.mvy;mbs; l *dk10 newtons can be combine to form a resultab;y*ks m -h6sb,llbt+.mvd g;nt with a magnitude of which of the following

  10.06: Which of the following statements is most closely igb0nj;iy97q 9.5j5msdm6 ydql 1 nldassociated with Newton’s Third Law of Mojdq9mgd0ydln.6 ns17 5 ii9 y5blj;qmtion?

  95.06: The reaction v 1dkis1f- j4ye+o,spr+ z(dhforce does not cancel the action force because:

  14.14: A box rests on the floor of c 5x 6zhaw7snd5p+ 0lzan elevator. The elevator is accelerating upward. Which one of the following choices best represents the Newton’s Thi5h5pz c +dnl0zxs7wa6 rd Law pair force to the gravitational force acting on the box by the Earth?

  15.15: A skydiver falls downward through the air with constant speed. Wy517bc yy1u iyhich one of the following choiyciy11yy b u75ces correctly 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 v6 qlkf7xdtkx:w/: +lrzr (v:c6c *kva speed of 35 m/s. The batterswings and hits the ball. The magnitude of the force that the ball exerts on thexl: rzk 7:(qfk6cx/*r6vcvdtk:l v +w bat is always

  11.13: A physics book sits at rest on a table. On xvf s w02wghaten6omd8 34( u:top of the book is 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 6 vwhangdx:w 8043tsmuf e(2oon the book?

  05.06: The students in a Physics;am 7ej:ph9ka I class were in lab conducting an experiment related to Newton's Second Law. The collected data were displayed on the graph at the rigk m9aahje;: p7ht. From this graph, what conclusions can the students make?

  99.03: If the net force on an object were doubled x .lg-r2n ;(lusr jvo3while at the same time the mass of the object was halved,then the acceleration of t3.xv ju2-go rnr;ls(l he object is

  96.15: A car whose mass is 1500 kg is accelerated uniformly from rest to a speews6bo4kp8) ds *v t3u8 hiqux+d of 2ku68 st8xs4)u phbovwid +q*30 m/s in 10s. The magnitude of the net force accelerating the car is:

  99.05: A tractor-trailer truck is traveling down the road. The 0i6nxzq ds+-mrriy09mass of the trailer is 4 times the mass of the tractor. If the tractor accelerates forward, the force that the trailn60ir9qzd s +im0-yxr er applies on the tractor is

  99.16: Which of the following principles bej13tqwmjh 5k3 kt-a hp;3wn ovj/m-(zst explains why large tractor-trailer trucks gene3wvjj mh1 m-k5-kj at( nq3z to3h/wp;rally accelerate much more slowly that automobiles?

  99.19: A 50 kilogram skater at rest on a frictionless rin i9ljr 9o1ozemx04pj ;k throws a 2 kilogram b o jr49;0pjm9zi1oxel all, giving the ball a velocity of 10.0 m/s. Which statement describes the subsequent motion?

  00.13: An object near the surface of the earth with a weiqa)-y ob7yq,udbyz ) 5k j./qsght of 100 newtons is accelerated ayo , 7-.q)s)ayq5qbky uz/j dbt $4\;m/s^{2}$ . What is the net force on the object?

  98.25: A car whose mass is 1200 kg is accelerated from rest by a constant f34*p4p acw:lfxj 0buncq 8x8 corce on 4pj:88xxuf4acw 0q3c plb*cf 2400 N. What is the speed of the car 8.0 s after beginning?

  98.32: A 3.0-kg block with initial kyue/2 .olh+o3-;,khg y,rc h+ neavmspeed 4.0 m/s slides across a rough horizontal floor before coming to rest. The frictional force acting on the blockyhoy;. e+2c/,r,e3 v-hukoa +mg lkhn is 3.0 N. How far does the block slide before coming to rest?

  95.38: A block with initial velocity 4.-lb9 iukbud4 u1zq59j)blv0ity (v; m 0 m/s slides 8.0 m across a rough horizontal floor before coming to rest. Tm5)b izqb4udtl-i0v19 (;jl b9y vukuhe coefficient of friction is:

  09.21: A 20.0 kg box remains at rest on a horizontal surface whaefj8 ruhyjvxc3:k):93nb4 wile a person pushes directly to the right on the box with a force of 60N. The coefficient of kinetic friction between the box and the surfcjae:)kb4h: 9j3xwrn f vu83yace 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 hs 8; c;pscwu4a horizontal surface. The block travels a distance of 12.0 m during the slides8 4scp h;cuw;. 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 pb g 8xso*7er-ratch of ice at a speed v with its brakes locked. It then hits dry pavement and skids to a st7 -sgrr8*obex op in 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 of0f nhw ;(eh fykn+l:+h ice at a speed v with its brakes locklf0yh e(+h k+h nw:n;fed. It 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 l 2kd ht2e7 k02q*ptycslamming on the car's brakes and skidding to a stop. How far would the car have skidded if it had been travelingpde hy2 qlk2 c*k70tt2 twice as fast?

  99.39: The driver of 0hyv 3bjd;p*/ gxqbi3ui 85woan automobile must carefully control each of the following devices. Which of these devices can cause an acceleration in a mo 0 odqbwy *5ip;gv83b3ixhuj/ving car?
(1) the break pedal ( 2) the gas pedal ( 3) the steering wheel

  00.25: The net force on a rocket with a p: :u,in:gw;dpgzdq1 weight of 15000 newtons is 24000 newtons. About how much time is needed to increase the rocket ’ speed fropzngidu:g:1;d:,w pq m 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 s 9x+ irosukif-z-t8qd1b : 6m rx:)vchorizontal floor. A person called Ted exerts a force T to thecd -mvrs b+futs r9 ii6x:xo)1 zk8:-q 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 on the box.

  02.27: The diagram below shows three roller coaster tracks of equn)p) 1tgy)u7wz t; o,gn 7bgklpn(w f)al length. Assume that on all tracks the roller coaster carts start from rest at the same elevation and mov wg lt77nowg )uy,;g)(pfb)pkz) nt1 nes 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 equal l/k pk1u:kf9-pjc.v; urrdu - yength. Assume that on allkuk1- 9vr;ujf ypkp.rd uc:/- tracks 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 the*v:g lexq3y lo. 5rc(h curved track from lg.rxc(53 loh* vy:eqpoint A to point C under the 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 acq*dj:4n/u*v/f 1imci)(z nn ed7sexrross the floor by a rope which makes an angle of 300 with the horizontal. Which of the following would be closez injru (sd /v71:/xmi)e*cf ned q4n*st 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 initially at rest is pushed against a wall by a 1 + m pltlrr-.l2+v1upe00 N force as shown. Thecoefficient of kinetic friction is 0.30 while the coefficient of static friction is 0.50. 1.l-u+ptvplr m+lr 2eWhat 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 h-a6v5h7vw.wxsb xf7 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 mavah -x 7wvxbwf57h6.sgnitudes, W, f, N, P is CORRECT?

  06.14: A book leans against a craj)iw jejdkd .1 i*rlbmh:u(73z d4 7ngte on a table. Neither is moving. Which of the following statements concerning this sith4*jbnd) jwj(g ud:7zei m7 i3l .r1dkuation is CORRECT?

  06.15: A crate of toys remains at rest on a sleigh as the sleigh isrn ub. ijiw:w z(.et/9 pulled up a hill with an increasing speed. The crate is not fastened down to the sleigh. What force is responsible i. (z wt:/ebwujrn.9ifor the crate’s increase in speedup the hill?