99.36: What happens to the inertia of an object when it* 2rm 8ree;oevok+ 9iqs velocity is doubled?

  02.14: An intrinsic property of matter is one that does not depend on the quante f1yy2;a p7ewity of matter present. Which of the following y7 fpaey1;w2e properties is NOT an intrinsic property?

  04.16: A 20 kg boulder re,8v sfbm+z dlhuj x+9hj6(u14mz bwx 9sts on the surface of the Earth. Assume the Earth has mhm,wm u1l8h9b+9s4+xzfu j zj db(6xvass $5.98 \times 10^{24} \; kg$ 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 freql ggj), ch-z y4mrz96e fall near the surface of the Earth. What is the magnitude of the grg,zr z y9h64)cjql-mgavitational 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 to increase while izb mm6t r3bj4 01)9w v-xxpvhbts acceleration decreases?z -6)m9rh4mjb0pt bbxv1x v3w

  00.11: A certain partic66;tf0hkwea /pwl m8 o9) 2ce/nawf ldle undergoes erratic motion. At every point in its motion, the direction of the partilwtm ; ow)ele 6kfnc/2fd 6pa9/ah08wcle’s momentum is ALWAYS

  17.14: A block is suspended in the air at the end of a string hey+2r0two o+dz ld 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’sot+2o wyr0 zd+ 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 cons;q2bg p5 hq/mqq:c mf,l2yd(dtantly zero on the obf /(qy 2qc;hlgq,2bd:d pmq5 mject?

  13.28: An object is in free fall close to the ground. A person intervenes an/mc2n: ayznkci5k7 c (d slows the object uniformly to rest. Which one of the follo2/k(knna7:5iy ccz mc wing 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, Fjsazv i4u +o351 of 30 N, F2 of 50 N, and F3 of 70 N, act3a+oi4v 5usj zing on it. The magnitude of the resultant ofF1 and F2 is

  01.07: A force of 6 Newtons and a force of 10 newtons can e wk-ceun7, z:be combine to form a resultant with a magnwe7c,ezu- n :kitude of which of the following

  10.06: Which of the foj hxygjg69b, t/f-. pwllowing statements is most closely associated with Newton’s Third Lagj/bxywt,gj6fph 9 . -w of Motion?

  95.06: The reaction force does not cancel the acti)ye+jgv 8uvqc5s4 +lfon force because:

  14.14: A box rests on the floor of tro y0a:op4m*an elevator. The elevator is accelerating upward. Which one of the following choices to4ramy0p* :obest represents the Newton’s Third 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. Which aj7 k cc*f7x9wg;ng8none of the following choices correctly describes the Newton’s Third Law pair force to the air resistance acting on the skydiver du7cgf 9x8 ncna*jkg7;wring the fall?

  06.08: A baseball is thrown , kp6liy3h0ts by a pitcher with a speed of 35 m/s. The batterswings and hits the ball. The magnitude of the force that the ball exerts on the bat l,6i3pksh t y0is always

  11.13: A physics book sits at rest on a table. On top of t xh es+qzdpg 52z4pu46he book is a calculator, also at rest. Which one of the following choices is the Newton’s Third Law pair 4ds24zxppug +zh65e q 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 experim/ejjb -;o szl9ent related to Newton's Second Law. The collected ;lzjo s/ -ej9bdata were displayed on the graph at the right. From this graph, what conclusions can the students make?

  99.03: If the net force on an object were doubled wyo6jz8 ecjp 0,*td(yz hile at the same time the mass of the object was halved,then ty80 y*jtcopzdjze6,(he acceleration of the object is

  96.15: A car whose mass is 1500 kg is ax* 2fqjv1k*zux+,)yz z0elz bccelerated uniformly from rest to a speed of 20 m/s in 10s. The mag vukyb2 1 lxfzq+*x z)j,z*z0enitude of the net force accelerating the car is:

  99.05: A tractor-trail ynj+5.,dt lneer truck is traveling down the road. The mass of the trailer is 4 times the mass of the tractor. If the tractond+5e tj, .lnyr accelerates forward, the force that the trailer applies on the tractor is

  99.16: Which of the follownvp.- ezh5ao jg j)o-0ing principles best explains why large tractor-trailer trucks generally accelerate much e5 pjavhj.zoo n--g0)more slowly that automobiles?

  99.19: A 50 kilogram skater at resteb gh23 oedv+e6v3;kxv*5l d m on a frictionless rink throws a 2 kilogram ball, giving the ball a velocity of 10.0 m/s. Whice3elv o2gd3hb e dk+; x6*mvv5h statement describes the subsequent motion?

  00.13: An object near the surface of the earth with a weight of 100 dl6n+tu g)s*fmi2 z;qnewtons is accelerate gdflut im+)*62q ;nzsd at $4\;m/s^{2}$ . What is the net force on the object?

  98.25: A car whose mass is 1200 kg is acceleray ji+j ,hz(vw-ted from rest by a constant force of 2400 N. What is the speed of the car 8.0 s after begini( hz-,wyj +vjning?

  98.32: A 3.0-kg block wiq c +chidh um+3r9cqn26,rjs5th initial speed 4.0 m/s slides across a rough horizontal floor before coming to rest. The frictihd+muchccir6j5,q9s q 3+ 2nr onal 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 velocity 4.0 m/s slides 8.0 m across a rough horq yk3h9ehq5j ;izontal floor before coming to rest. The coefficient of friction iye3h9q j;5hqks:

  09.21: A 20.0 kg box remains at rest on a ho.hkyjx0 ; -teirizontal surface while a person pushes directly to the right on the box with a force of 60N. Thyitex; 0- kh.je 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/tyg :i6rc /n-us 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 rept-yur6i: / gcnresents 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 f.z8/tuyb,w0 q+0vx ab8sh otwith its brakes locked. It then hits db,u 80tqyvo+za/f 8x s0h.bwtry 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 mass of 2m, it would have skidded a distance of

  00.22: A car of mass m slide8xz/p,*f8ii 9 *x*fhhweaslh s 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. T8 hxh* pl8z/*f *hafsi,ixw e9he 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 6awhz d0/ vxi5stop by slamming on the car's brakes and skidding to a s/dhwv05a z6ix top. How far would the car have skidded if it had been traveling twice as fast?

  99.39: The driver of an automobile ml9fy- lde/ ae rtodo(0thc0d60z6vw is )t c12ust carefully control each of the following devw62 /d)oaecydc00os 96( 0iz-te1dllvttfrhices. 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 weigha+/ +idjwop 8 dd.gx/xt of 15000 newtons is 24000 newtonsw/+/ o d ddp.8ja+xxgi. 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 takeoff?

  07.21: A box slides tcs)2/24g3ey s)skxv1 *p x8zqsdn kxs o the right across a horizontal floor. A person called Ted exerts a force T to the right on the box. A per eps8scsg)sysvx x)xkn2qk24* 1/d z3son 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 ag;4:c zr ))*gwg xg9ta)hjrfthree roller coaster tracks of equal length. Assume that ongfwraj rt4gc)z)9;*: ) gghx a 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 sho tea-50b r2rc or)kn- ic5etd-ws three roller coaster 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 tracks to taeed)ro- 2 -r- tkn b0cicr5t5he 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 rollrhiei6(g jqk(u21ui 0x98z o rercoaster cartrolls frictionlessly along the curved track from point A to point C unduz10x9r eqkg8 (iho ji6 2u(rier 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 dragga 3 x((zyu5zkr 5q8qti ,tg+)svk( jm.b c8svbed across 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 newton force on the rope is required ui z b5rvkaj qv(mt+q)s8ygk(t .5 38zc,(bsxto 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 p-qyc s+eins,6ll 6)tqdqvgtjp 8. 9 0wt) u1cgushed 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 true o)p9u6,s 1 0+cq e d- t)n8jwglqt.c ltiv6qgysf the friction acting on the block after a time of 1 second?

  05.10: A homeowner pushes a lawn mower across a horizontal patch of grass withdq*48ucsv8l o8em0q +ga) t 2t -ixesb a constant speed by applying a force P. 4e02t8mtdqg)uisbqxv +sa8c e *o8-lThe 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 crate on a table. Neither is movinj3a:p.wxomfw x) dn( ,g. Which of the following statements concerning this sno3,a( f:wpx wx)mj. dituation is CORRECT?

  06.15: A crate of toyf5f b0 x,)tcwes remains at rest on a sleigh as the sleigh is pulled up a hill with an increasing speed. The crate is not fastenedf, betwf5 )x0c down to the sleigh. What force is responsible for the crate’s increase in speedup the hill?