99.36: What happens to the inertia of an o 6ag)fpjhx re3q(/pfs*md 3d6bject when its velocity is doubled?

  02.14: An intrinsic property of matter is one that t ighrh+qo2s/ rl6q83 does not depend on the quanti6sqr o8g3lri q2h/th+ty of matter present. Which of the following properties is NOT an intrinsic property?

  04.16: A 20 kg boulder rests on the surface of the Earth. Assujkq4pkr 37zrtat(10 -jho 9skme the Earth has mass137jj rthrak(sko q9 p- z4t0k $5.98 \times 10^{24} \; kg$ 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 t ih//agx5;ybdhe magnitude of the gravitational force acting on the earth by the sphere? The E5ighy//a; xdbarth mass is $5.98 \times 10^{24} \; kg$ .

  00.09: Is it possible for an object’s velocity to increase while its acceleraoh 6s ju3)m3lationu) lsjom3h6 3a decreases?

  00.11: A certain particle under25) s,oestl xweh/. eqgoes erratic motion. At every point in its motion, the direction ofhex,q/t 5.ls w)o2see the particle’s momentum is ALWAYS

  17.14: A block is suspended in the air at the end of a string held by /gum:xkpiwj0 /fwg;:(ls5xynlc g01 a person. The person pulls on the string uniformly accelerating the block upward for a short time. During this time, which one owk gx0c/ s: nmp0(:g51fxylu l/;j wgif 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 situations is the net force constantly zeroabt t;,mgbe;c,0-zgn5 ( se rl on the objeasgte(b,0cm;tgen b l-r;5, zct?

  13.28: An object is v0 6wf:iutgckg0 8tl6in free fall close to the ground. A person intervenes and slows the object unifo:6l v ggt006cwt8kuif rmly 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+0,lakbftaz2 , F1 of 30 N, F2 of 50 N, and F3 of 70 N,+klz0 f,2tbaa acting on it. The magnitude of the resultant ofF1 and F2 is

  01.07: A force of 6 Nek, jj.0/p43eswonr vywtons and a force of 10 newtons can be combine to form a resultant with a magnitudy po n r4ek/jjv3.0ws,e of which of the following

  10.06: Which of the following statemek9 fgu.efl lzm0 4..nlnts is most closely associated with Newton’s Th.m4.lz0g l lkf 9n.uefird Law of Motion?

  95.06: The reaction force does not cancel the action force becaus+psh lark9 7d3otp *p 9j7as1bu:ghrx3i,m)f e:

  14.14: A box rests on the floor of an elevator. The :e:d+jvy:z13yeu p *j8ez delelevator is accelerating upward. Which one of the following choices best represents the Newton’s Third Lj:e8y +1zp ze:j l3d u*vde:yeaw 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. 8sohod.1e.yo Which one of the following choices correctly describes the Newe8 h.s.ooydo1ton’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. Thxm-sg k *dx)edt73*1 cm,t7p(z fkipue batterswings and hits the ball. The magniucdp3,)t dk(msip **7 fx-7emtz1 kgxtude of the force that the ball exerts on the bat is always

  11.13: A physics book sits 3c)atqpv; iz t6 7try4zry0*xat rest on a table. On top of the book is a calculator, also at rest. Which one of the following choices is the New tx6z 0 ayq 7tz*rvcp4i)3yr;tton’s Third Law pair force to the force that the table exerts on the book?

  05.06: The students in a Ph)6.u8 rue wtzeysics 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 gu r6.)zw eu8etraph, what conclusions can the students make?

  99.03: If the net force on an object were doubled while at the same time the f9nx6r 4,hff/a cic1f + 5ikvpmass of the objfa6vfrnhpk f i1ci/f +,549c xect was halved,then the acceleration of the object is

  96.15: A car whose mass is 1500 kg(z8fx3 zvs flks2v(v8 is accelerated uniformly from rest to a speed of 8k38vz( xvfvs(f zsl220 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. Tq(28a,s+,otv1r iv;v j7kcya o ta7gt he mass of the trailer is 4 times the mass of the tractor. If the trac jo1arc g727+v ; ,taiaqvt,ty(v ok8stor accelerates forward, the force that the trailer applies on the tractor is

  99.16: Which of the follor + ilmrt5pn eypm5uod;+/+*wwing principles best explains why large tractor-trailer trucks generally accelerate much more slowly that automobil5pd *+m5o i+prm+uernl/wty ;es?

  99.19: A 50 kilogram skater at rest on a frictionless rink throws a 2 kiy*j)1u 2mao9d3phgi plogram ball, oj * ) 1pp2guyiamh39dgiving 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 wii : r6v o2v7lajsh+r/k4wghx (th a weight of 100 newtons is accelr wrax4v ih+ /lk2v7sjgo (:6herated at $4\;m/s^{2}$ . What is the net force on the object?

  98.25: A car whose mass is 1200 kg is accx /hj 6hsxqk))elerated from rest by a constant force of 2400 N. What is the spee)qh6xjk sx/h)d of the car 8.0 s after beginning?

  98.32: A 3.0-kg block with initial speed 4.0 m/s x eagonw6ec1(p+gf *0 slides across a rough horizontal floor before coming to rest. The frictional f g(gc+fn0p aw1oexe6 *orce acting on the block is 3.0 N. How far does the block slide before coming to rest?

  95.38: A block with initial ve/.v jo1oka;o4p3u (lymcdsj1locity 4.0 m/s slides 8.0 m across a rough horizontal flo a;doo 1vu(/4y3clkmos1j.p j or before coming to rest. The coefficient of friction is:

  09.21: A 20.0 kg box remains at rest on a horizontal surface while a person p7b m avi8t0 )s6:ab6nky8ub;3lwezoz ushes directly to the right on the box with a force of 60N. The coefficient of kinetic friction between the box and vl zs0ynobiuk ew;78a:8a)63z6 tbmbthe 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 un (oc fo/9eujq.iformly to rest on a horizontal surface. The block travels a distance of 12.0 m during the slide. Which one of the foll oqu9 ecjf(./oowing choices best represents the coefficient of kinetic friction between the surface and the block?

  00.21: A car of mass m slides across a patc*uj+ aq,/vtt oh of ice at a speed v with its brakes locked. It then hits dry pavement aj /tav+o*,qt und 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 mass of 2m, it would have skidded a distance of

  00.22: A car of mass m slide* ,5 z: /8butp z4esfjxhvx.dbs 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 betweebxv5bz :z/etjs,xp8 . u4d*fhn 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 makesilf; ezd(kg(. 1oxr c- an emergency stop by slamming on the car's brakes and skidding to a stop. How far woulec(g1o-;fd( k.irlxz d the car have skidded if it had been traveling twice as fast?

  99.39: The driver of an automobile must carefully control each)kauyyn( * (bj of the following devices. Which of these devices can bkaj(u nyy ()*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 roi /xxb1o9xh(ew:e x7u +rp bc/cket with a weight of 15000 newtons 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 twh/uxrex1x :/e 9obxcb7ip( + akeoff?

  07.21: A box slides to the right across a horiyi0 uiu e536u b) o,3ub by3zh1ph,h (u1rgntrzontal 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 33ri iobrhughbyz6u,,enp3 11yh 5b(t0 u )uuthere 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 s +h c7duzok5pi)9y p4ehows three roller coaster tracks of equal length. Assume that on all tracks the roller coaster carts start from rest at the same elevation aec 9u+hoz5pd)y4 i kp7nd 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 coasvuz qnl *l pl9gfpcap:fy4iw2dr(9di k) 38 05ter tracks of equal length. Assume that on all tracks the roller coaster carts start from rest at the same elevation and moves frictionlessly over the track f)yzl2a wkp(9c q9 unl*d3rl045 igd8vip :pfs 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 curved tokd6 zzj/22t y oe t.;:lx pj86j06kq m3tpqswrack from point A to point C under the influence of gravity. What would be the direction of t06ds op 2/ktmzk8qjlwjpyz.636tq;2 je:to xhe cart's acceleration at point

  02.40: A box with a mass of 50 kg is dragged across the floore6 *n xfg dwj1+pynl1* md66pmp cds); by a rope which makes an jple 1n)f *m;6d pnw6scgm *1p dx+y6dangle 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 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 pzt(+gbf/uv3 100 N force as shown. Thecoefficient of kinetic friction is 0.30 while the coeffp+tu fgb/3(z vicient 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 mowkeg1uwq l57e gtz;22hek 13 +bf c,nzyer across a horizontal patch of grass with a constant speed by applying a force P. quc 35;f+ge1e7t12n,k l gwzkh2byez 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, N, P is CORRECT?

  06.14: A book leans against a *cua/htgp 8mvfrgg/sf6 + t +.crate on a table. Neither is moving. Which of the following stat*v6tpgts+hf rgc aufm g/. 8+/ements concerning this situation is CORRECT?

  06.15: A crate of toys remainhfqlzh mc:t;4/m z(a5 s at rest on a sleigh as the sleigh is pulled up a hill with an increasing speed. The crate is not fastened dqzh(f/;45tlhcmz a :mown to the sleigh. What force is responsible for the crate’s increase in speedup the hill?