99.36: What happens to the inertia of an object when its vel o .yp/rd+z+nm 2mizj3ajs e9 8v(v:mqocity is doubled?

  02.14: An intrinsic property /9xv z *guyy6ko.yy m6of matter is one that does not depend on the quantity of matter present. Wz/gvymky6*x6ou . yy 9hich of the following properties is NOT an intrinsic property?

  04.16: A 20 kg boulder rests on the surface of the Ear11dqw ,qac6j61kdthk8vv)sw/ gd l.uth. Assume the Earth has mass t d 1j)qduh8ck q,lg1wasd6v.v6/w1k$5.98 \times 10^{24} \; kg$ 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 isuiu6o-s-:t hc 0j l;z *.ebox mmx:5zv in free fall near the surface of the Earth. What is the magnitude of the gravitational force acting on the e5;zoml mijh--z:xo u6c s b*tx0.v :uearth by the sphere? The Earth mass is $5.98 \times 10^{24} \; kg$ .

  00.09: Is it possible for an object’s velocity to increase while its accelei6* s v,nbf-no n(g*dyratioisn(bdfvo g*-n *n6, yn decreases?

  00.11: A certain particle undergoes erratic mop wh,n.po,(i ction. At every point in its motion,n (hppo. i,cw, the direction of the particle’s momentum is ALWAYS

  17.14: A block is suspended in the air at the end of a strni ho4r)d kb2-ing 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 correctly identifies the Newton’s Third Law pair force t-ib 2dok)h r4no the force of the string on the block?

  07.18: In which one of the following situations is the net forc3t r65ok: hhysrm-m)ijd6l4kgpl f + 2e constantly zero on the om 2g+f3jhhlp): 4kdi 6k -tr56or ylsmbject?

  13.28: An object is in free fall clos069 whb4(7l p2jgyiciv 6p kl1*dopuie to the ground. A person intervenes and slows the object uniformly to rest. Which one of the following statementpivw29ucib(d1 ly p6kl*7 phgo0 ji64s 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, +n7ro1skz6pg ;z qp 5aF2 of 50 N, and F3 of 70 N, acting on it. The magnitude of t6+s knr5z pqp1;go7zahe resultant ofF1 and F2 is

  01.07: A force of 6 Newto;jy kd)mz2ey86/oa g f4 5dmipns and a force of 10 newtons can be combine to form a rz65gmf24 )8j ioka; myp/dyd eesultant with a magnitude of which of the following

  10.06: Which of the following statements is most closh+kj j.4gkcc8wdm; p4ely associated with Newton’s Third Law8.+ cg d4kw;4jck mphj of Motion?

  95.06: The reaction force does notciwc 4adfx.61er,nm9 cancel the action force because:

  14.14: A box rests on the floom(zm0sscstnm 4whu 8 ,;o* 2zyr of an elevator. The elevator is accelerating upward. Which one of the following choices best represents the Newton’s Third Law pair ; 2s*z u08sh co4 nmym(mwzst,force to the gravitational force acting on the box by the Earth?

  15.15: A skydiver falls downward through the air with constant speed. wsde. +-pwrx1qmv;.e Which one of the following choices correctly describes the Newtonw. .q;repe vw+sd -mx1’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 speedv 8 n4*p)yqpbo of 35 m/s. The batterswings and hits the ball. The magn4p)yn*q bvo8pitude of the force that the ball exerts on the bat is always

  11.13: A physics book sits at rest ;/agjbc l bdv.vl)8a* on a table. On top of the book is a calculator, also at rest. Which one of the following choices bgv8j.b*cdv la ;a/ )lis 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 an experime vimj rcbuhx33q(( 15ie3g +sznt related to Newton's Second Law. The collected data were displayed on the graph at the right. From this graph, what conclusioe q u3i1z3vi( cgxh5(+ r3jsbmns can the students make?

  99.03: If the net force on an objsbl u j k0; 5i+evtsy4y(g faek8c65:pect were doubled while at the same time the mass of the object was halved,then the acceleration of the object ;0icssyj 8b(ep5ate6v+ g :5yfu lkk4 is

  96.15: A car whose mass is 1500 kg is accelerated uniformly from resbnls(64n )a;jwy-x gy t to a speed of 20 m/s in 10s. The magnitude4-n)ayy jwxb;l (gs6 n of the net force accelerating the car is:

  99.05: A tractor-trailev9a:x3z db:(rbz x.9mdvd u;vr truck is traveling down the road. The mass of the trailer is 4 times the mass d:x; 3ab(zv9mdv9 v: ruzx.bdof the tractor. If the tractor accelerates forward, the force that the trailer applies on the tractor is

  99.16: Which of the following prin4- * ha/jmqtzxt.+kti*mgx j6 v* tp+pciples best explains why large tractor-trailer trucks generally accelerate much more .v+ zt pkj4h-m m+xti*xqgjpt/ta** 6slowly that automobiles?

  99.19: A 50 kilogram skater at rest on a frictionless rink throws a 2 kilogra 3i jstq ilp0c+3hry39afhs 5-m ball, giving the ball a velocity of 10.0 m/s. Which statement 5i9h3hr+s 3 a0y3pctqfj -sil describes the subsequent motion?

  00.13: An object near the surface of the eartga-k1weq k+ p(h with a weight of 100 newtons is acce+q1ak-k(p gew lerated at $4\;m/s^{2}$ . What is the net force on the object?

  98.25: A car whose mass is 1200 kg is acceleravv; y3hb.uzz,d 8xi/cpx/ o:v ted from rest by a constant force z hip8 bcxoyuv:;zx. d/3v/v, of 2400 N. What is the speed of the car 8.0 s after beginning?

  98.32: A 3.0-kg block wit+seaf o9xzt)l hgm57: h initial speed 4.0 m/s slides across a rough horizontal floor before coming to rest. The frictional force acting on the block is 3.0 N. How far does the blocktmz:f5g 97o xl)hea +s slide before coming to rest?

  95.38: A block with initial velocity 4.0 m/s slides 8.0 m across a ro)c11-rbdi/hv ku tfy+ugh horizontal floor )h-kcy1bi+r /tdv uf1 before coming to rest. The coefficient of friction is:

  09.21: A 20.0 kg box remv:s 5o(pxkg*lhm a*ktn4;t7e ains at rest on a horizontal surface while a person pushes directly to thelhm (kv 4kxa:5 eptso7*t *n;g right 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 nkuli);x3l bm6,5c9s xqg7xg moving at 8 m/s accelerates uniformly to rest on a horizontal 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 be 5cxxlg,3u gk;6) bqmn xsl7i9tween the surface and the block?

  00.21: A car of mass m slides across a patch of ice at a speed v with its me(p1- l3qvi(qlnu4tq3f (; p thjnm4brakes locked. It then hits dry pavement and skids t3ej( 4hl( lpm4mn tn3i pvqq ut-1q;(fo 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 slides across a patch of ice atcs 0ylcc.is-fw3;6a f a speed v with its brakes locked. It then hif i3wc c-c.ys a0s;fl6ts 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 cfdtr cuht..( h :3 8(sw gbbjiwrc:-,slamming on the car's brakes and skiddccthc iws3r.u.b(8b -,gtr( d: wf:jhing to a stop. How far would the car have skidded if it had been traveling twice as fast?

  99.39: The driver of an automobile must carefully control each of tw n zu1 +k(.ta+al,bmhhe following devic,kawbn+l 1. u(mh+tzaes. 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 rocket with a +rmakro djgky(mb/e4- 4+.3hq(d hdnweight of 15000 newtons is 24000 newtons. About how much time is needed to rr- emb /+ n+dkgmaj(4qyk34hd h.od(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 rightl+f sdqf6e29eba; 6 we across a horizontal 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 there is friction f and the box accelerates to the right, rank the sizes of these three forces exerte9a w6efse+f2e dbl;6qd on the box.

  02.27: The diagram below shows three roller coaster tracks of equal lene qreyo6 :n y( i(6rebim,, ,jx-/nwtagth. Assume that on all tracks the roller coaster carts start from rest at the same elevation and moves frictionlessly aem ,/ey(yxt win6i- n(b,, rj:oe6r qover 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 eq74joln yy6rx/ual length. Assume that on all tracks the roller coaster carts start from rest at the same elevation and moves frictionlessly over the tjo lnxryy67 4/racks 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 cur w4/:li-(fs we4 qvtprved track from point A to point C under the influence of gravity. What would be the dilwe 4(4tsqwi:r- fpv/rection of the cart's acceleration at point

  02.40: A box with a mass of 5klz9un*z,oy ;3 .vqbw0 kg is dragged across the floor by a rope which makes an angle of 300 zkl* ,;.ubwo9zyqn3v 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 ,q esy6rhxm:/d* +fhj 100 N force as shown. Thecoefficient of kinetic friction is 0.30 while the coefficient of static friction is 0.50. What is true offx+6y rs eh:j*h,qd/ m the friction acting on the block after a time of 1 second?

  05.10: A homeowner pushes a lawn mower across a horizonzkj 2,hp( r-hdtal patch 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 magnitud phrh(2 j-,kzdes, W, f, N, P is CORRECT?

  06.14: A book leans against a crate on a table. Ne04(;skr aprwhither is moving. Which of the following statements concerning this situation is CORRECT?4;pash (kr rw0

  06.15: A crate of toys remains at rest on ab4v 9hr4; b:jsz/xsvq sleigh as the 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 increa; x49bsjbz:vsrq v4h/se in speedup the hill?