99.36: What happens to the inertia of an object when its velo oxbgp1o 37a8ocity is doubled?

  02.14: An intrinsic property ofz )t(h+ mwtg )cj4(remrtn-d0 matter is one that does not depend on the quantity of matter present. Which of the following properties is NOT an intr (ht n )rgj4mr)tdmz(-wcet0+insic property?

  04.16: A 20 kg boulder rests dnx2 4d 7yq4,hmvrofr78+k oy on the surface of the Earth. Assume the Earth has mayrod,kdq+o f42yx87hvr7 n4 mss $5.98 \times 10^{24} \; kg$ 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 ouec2g6 gjh21near the surface of the Earth. What is the magnitude of the gravitational force acting on the earth by the 6oj1gu2g2he c sphere? The Earth mass is $5.98 \times 10^{24} \; kg$ .

  00.09: Is it possible for an object’s velo17 8cl0( gfxvk:mrn rzcity to increase while its accelerationl(v rkx z :gr1f0nm7c8 decreases?

  00.11: A certain particle undergolfg7h) -w t,oyvto3n0es erratic motion. At every point in its motion, the dire,)go3-l7ofthy wtv 0nction of the particle’s momentum is ALWAYS

  17.14: A block is suspended in the ai(js412) ox2ldjavd qp54 zsft r 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 coz 442fjxdpv(2 tdsoa1)jsq 5lrrectly 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 sit ;ttz1dvxd,miwa 0;m 2uations is the net force constantly zero dx; 2tvaw 0t,m;z 1dimon the object?

  13.28: An object is in free fallu)4u v da,pn9w close to the ground. A person intervenes and slows the object uniformly to rest. Which one of the following statements must be49 da,pu)u wnv 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 fcq4h6 3eer 1g6mc1k9pfn h5iF3 of 70 N, acting on it. The magnitude of the resultant ofF1 am 5i1hgpqre e1nc4h96k6fc 3fnd F2 is

  01.07: A force of 6 Newtons)/lr* c9 1lmo;zslmus and a force of 10 newtons can be combine to form a resultant with a/ cuso);ls* 9m zrm1ll magnitude of which of the following

  10.06: Which of the follo yftgn //tcoh cz2ja3:n 5-st;v9sp5xwing statements is most closely associated with Newton’s c nfh :s patt y9 3;zn/s5j/5vtg-c2xoThird Law of Motion?

  95.06: The reaction force does nlu8selt8mr0*1z+ezt, sn v- q ot cancel the action force because:

  14.14: A box rests on the floor of an elevator. The elevator is accelerating up;u:9jj/ k5 3 gpqwsny)3ksq etward. Which one of the following choices best represents the Newton’s Third Law pair force toqs);s y95t:kj /3 gpjqn3kue w the gravitational force acting on the box by the Earth?

  15.15: A skydiver falls downward through the qxf 2.; rl5gngbn5*4-d*2cjutla k uzair with constant speed. Which one of the following c5tuf*uxgk- ac2.l r b 2qgj*5ld znn;4hoices 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:g-p6c * qbhvt thrown by a pitcher with a speed of 35 m/s. The batterswings and hits th:g6b qv cht*-pe ball. The magnitude of the force that the ball exerts on the bat is always

  11.13: A physics book at2 lrd;f*rn6 sits at rest on a table. On 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 nflrr d *62;taexerts on the book?

  05.06: The students in a Physics I class were in larst2,myh ;w9 6t/hl3 agt 3cdwb conducting an experiment related to Newton's Second Law. The collected data were displayed on the graph at the right. From this graph, what condt/63 macst9 w ,ywrtl2h h3g;clusions can the students make?

  99.03: If the net force on an ob) cj(4okeuw(dject were doubled while at the same time the mass of the object wasdj (4u(cowke) halved,then the acceleration of the object is

  96.15: A car whose mass is 15pp.p 4oy5 2 jf4qlz)ay00 kg is accelerated uniformly from rest to a speed of 20 m/s in 10s. The magnitude o4.ojpazy fpyl2p5) 4qf the net force accelerating the car is:

  99.05: A tractor-trailer truck dpqfu68o f e,07pxk5z*6id xzis traveling down the road. The mass of the trailer is 4 times the mass of the tractor. If the tractor accelerates forward, the force that the trailer eu6*fz8x, zd05kopi p76dx fq applies on the tractor is

  99.16: Which of the following principles best te+ gc1ivaf1 /i/f:f wexplains why large tractor-trailer trucks generally accf/1tfewvf:i gc /1 a+ielerate much more slowly that automobiles?

  99.19: A 50 kilogram skater at rest on a fricth er/ond0 l9n;ionless rink throws a 2 kilogram ball, giving the ballhedr 0 on9n/l; a velocity of 10.0 m/s. Which statement describes the subsequent motion?

  00.13: An object near the surface of the earth w)) k))y zs r6wkeq8aukj1lpe 4ith a weight of 100 newtons is accelerae rs)k k ))q ze1)a86pk4uljwyted at $4\;m/s^{2}$ . What is the net force on the object?

  98.25: A car whose mass is 1200 kg7h7z(mawqip1+hlqxb.3ht7ql a c 4*z is accelerated from rest by a constant force of 2400 N. Whatcbh7 17hahtxla+z l w(m*.i4 3qq7 zpq 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 slides across a rough horizo 7t83ezywk ky5ntal floor before coming to rest. The frictional force acting on 7t kk35e8yzwy 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 rough horizo) jvy mb-v(*jh ovh1c1ntal floor before coming tjo(1bc y)h vm*hv j1-vo rest. The coefficient of friction is:

  09.21: A 20.0 kg box remains at rest on a horizontal surface while ai8k4i*8 c sktv0xwo,h person pushes directly to the righkv4kw0 *o8 ixcsi ,8tht on the box with a 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 unifor/gf1pa:jre5xxs ;p s 9mly to rest on a horizor:/asp;1x s9 pjg 5xefntal 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 block?

  00.21: A car of mass m slides across a patch of ice at a speed v with its br0 w1y)6tlz i7 omhdtz-u48offcf*u :eakes locked. It then hits dry pavement and skids to a stop in a distanced. The coefficient of kinetic friction between the 0t)iouw1f zel-hzc t6omy84df7:u*f 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 brakes:+nh*wnw,s31 rpfzu w locked. It then hits dry pavement and skids to +h wn nw3zsp:1,ufrw *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 stm8kf8llaqgg3m9t * 2fop by slamming on the car's brakes and skidding to a stop. How far wom2l8m kq3gl a8 fg9*tfuld the car have skidded if it had been traveling twice as fast?

  99.39: The driver of an automobile must carey/dw(+n6 woanuh zz +d 09m(rufully control each of the following devices. Which of these devices can cause an acceleration in a moving carh z+numra( d +wo wydu096z(n/?
(1) the break pedal ( 2) the gas pedal ( 3) the steering wheel

  00.25: The net force on a ro5 jy3rgb z *9our*)qxpcket with a weight of 15000 newtons is 24000 newtons. About how mu*grj)qo ry*39puzx5b ch 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 Teiddov(5nr +5dd 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 accelerated+r 5dnvo5 i(ds to the right, rank the sizes of these three forces exerted on the box.

  02.27: The diagram below shows three roller coaster tracks -0th 2)m wcqovof equal length. Assume that w2vq0oc m)h-ton all 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 be traveling the fastest at the finish?

  02.28: The diagram below shows thrtfd8murvr* z65k;(i mee roller coaster tracks of equal length. Assume tm*dm6k ( iv5tzru fr;8hat on all 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 rollddwdc :lps;np *s ( l2sfdi.b,e i;25cercoaster cartrolls frictionlessly along the curved track from point A to po:d *.ip(2i ndbcc;dsd2elplwf5 s ;s,int 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 i ;.0jfqp uzru*77 ydwqs dragged across the floor by a rope which makes an angle of 30rfzp w7; 0.qj*du7qy u0 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 diagram?

  04.40: A 6.0 kg blocls +8du/ ujvrw*-z zljo+i51j k initially at rest is pushed 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 tr5u+ rozizudsjjl/* 8 l+w-j 1vue of the friction acting on the block after a time of 1 second?

  05.10: A homeowner pushes a lawn mower across a horizontal yudpmpu: d 8c9 5j-xu0patch of grass with a constant speed by applying a force P. The arrows in the diagram correctly indicate: x pdd509ym8ujc puu- 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 - :o:ojpxtf 7ron a table. Neither is moving. Which of the following statements concejfpo7r-ox: t: rning this situation is CORRECT?

  06.15: A crate of toys remains at rest on a sleigh as the sleigh is pulld(c (skr i6t3qed 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 i6r st(q3di(k cn speedup the hill?