99.36: What happens to the inertia ogvt g2fr t9+i0rkhhc+/am(1ugi1 jh7f an object when its velocity is doubled?

  02.14: An intrinsic property of matter is one that does not1v. kgv+ m1ajm/+9wn omwix 0s depend on the quantity of matter present. Which of tos+w 1nw 9+m./gx0 ijk1vmamvhe following properties is NOT an intrinsic property?

  04.16: A 20 kg boulder rests on the sup ,gbo mgn8o.z)epx 10rface of the Earth. Assume the Earth has mpx1zmg eg,bn) .o8o0p ass $5.98 \times 10^{24} \; kg$ 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 *-ed p1qbdzg)mygdsuo7 w8*ut+z *k 0 is the magnitude of the gravitational force acting on the earth by the spherk +q1*-uyubtp g dzs*ew)godm*7z 80de? The Earth mass is $5.98 \times 10^{24} \; kg$ .

  00.09: Is it possible for an object’s velocity to inywo+ +dodglf2m4( fqzc,r i9,zix +b ,dt qn31crease while its acceleration 2d 4wg1dl,cf+i3+n (r+ib9 mqt fodyq xz,,zodecreases?

  00.11: A certain particle undergoes erratic motion. )6pcw(yqfudp.bz9)+9ebr ii At every point in its motion, the direction of the particle’s momentum is ALWAYyfepp9iq6 )i.crd bw uz)b9(+S

  17.14: A block is suspended in the air ;b2hg3 5p j:)hb4q tyklrd4r( mxosh; 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 correctly identifies the Newton’s Third Law pair force to the force of the string on thol :mr;h 4(qb3t5phk ;rdb gjh2xys)4 e block?

  07.18: In which one of the following situations is the net forceo+ :jettvot,5 584yy dokb) tm constantly zero on the object?t5t ,dom jo+e8 bt5tk:4 oyyv)

  13.28: An object is in free ;x(hnnx -j-t bfall close to the ground. A person intervenes and slows the object uniformly 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’sh;xt--n nb(jx acceleration is a and the magnitude of the acceleration from gravity is g.

  98.03: An object in equilibrium has three forces, F1 of 30c;f li7y.;puc1bag w8,r8fyy N, F2 of 50 N, and F3 of 70 N, acting on it. The magnitude of the resultant ofF1 and F2rgcf.yc ypabu w8, 1y;l78fi; is

  01.07: A force of 6 Newtons and a force of 10 newtons can be co5./c4bivxgb n k7 z3tgkyyh3-mbine to form a resul7 - cb4 yzb5vtgg3i3k ./ykxhntant with a magnitude of which of the following

  10.06: Which of the fox(vm:xs9hz)1cqq7 ei( d ld x,llowing statements is most closely associated with Newton’sdx1qq9(ei 7): xldhczvm s,x ( Third Law of Motion?

  95.06: The reaction force does not cancel the action fozs bcdbn7a1p 1v6s 1w/rce because:

  14.14: A box rests on the floor of an elevator. The elevatoj cppino 3s-71r is accelerating upward. Which one of the following choices best represents the Newpic- np3soj71 ton’s Third Law pair force to the gravitational force acting on the box by the Earth?

  15.15: A skydiver falls downward through the a no a6z9akxh/map/zfz wludy5 8s:8.0ir with constant speed. Which onez5 .d0fazan/hpw 9 :6a 8ym8u/x klosz of the following choices 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 witkjs1l3drz8-, su t3uth a speed of 35 m/s. The batterswings and hits the ball. The magnitude o3t 3kt-l1jusu,z8dr sf the force that the ball exerts on the bat is always

  11.13: A physics book sbw30k/rncqqpgof m y 8-ke8+.its 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 fqpg+8k8qcfw.kb mern y- 3o/ 0orce to the force that the table exerts on the book?

  05.06: The students in a Physics I class were in lab conducting an experi* sl7+e wc9cwament related to Newton's Second Law. The collected data were diwe9w cl +7s*acsplayed 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 doubledt/nn/*lrcfg /+6ihoe while at the same time the mass of the object wasrohl/ /n ifc/+tne6g* halved,then the acceleration of the object is

  96.15: A car whose mass is 1500 kg is accelerated uniyujg/ hikyr) dmw5 0ppwr 5fghf+);cyp a+/73formly from rest to a speed of 20 m/s in 10s. The magnitude of the net force acce 5rfif)jy wy0phc w;pg )y/ d/5mug7+3pk+ harlerating the car is:

  99.05: A tractor-trailer truck is travelin bg /hz0sv fx+jdp;nl2p5su)6g down the road. The mass of the trailer is 4 timfgd/ln6v s+ pxzh)s p2;5jbu0 es the mass of the tractor. If the tractor accelerates forward, the force that the trailer applies on the tractor is

  99.16: Which of the following principles best explains why laraqg,+ah:6w0d, tech q ge tractor-trailer trucks generally accelerate much more slowly that qghqewhtc d6:+ a, 0,aautomobiles?

  99.19: A 50 kilogram skater at rest kive2,71; .lobflhge on a frictionless rink throws a 2 kilogram ball, giving the ball a velocity of 10.0 m/s. Which statement describes the subs .2eg;ofk 1i,le 7hblvequent motion?

  00.13: An object near the surface of the e1fdi swn+j1( carth with a weight of 100 newtons is accelerawn(f j11+dsi cted at $4\;m/s^{2}$ . What is the net force on the object?

  98.25: A car whose mass is 1200 kg is accelerated from rest by a constant force6q wy5huzfa( rozv02 9 of 2400 N. What is the speed of the car 8.0 s az5(faryhqv2z6 0 9wuofter beginning?

  98.32: A 3.0-kg block with initial speed 4.0 m/s slides across a ro gw(cap:8 to4vugh horizontal floor before coming to rest. The frictional force acting on the blw oc8pa:t 4v(gock 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 ke uqn i.-8yf6m across a rough horizonufe8kq.6 ni- ytal floor 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 push1)0hs6z7q-8y;tpdn ed xvjae es directly to the right ;aj ed- qh1y6vtxzdp n)0es78 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 uniformly to rest on a 0lpk o hen/vbr3bte8,ns 44:i horizontal surface. The block travels a distance of 12.0 m during the slide. Which one of the following choices/hk ebv ,rb3e4:ot 4sin8l n0p best represents the coefficient of kinetic friction between the surface and the block?

  00.21: A car of mass m slides across a patc)r1 g-vkcek, zdo58sv h of ice at a speed v with its brakes locked. It then hitskgc s zrk15 dv8o),ve- 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 mass of 2m, it would have skidded a distance of

  00.22: A car of mass m sli7.(:uhxd rq-dbw kd9 /a-8tkhvy bku:des across a patch of ice at a speed v with its brakes locked. It thw-dh /(k v :qhu. ty :-kd97akb8udbrxen 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 slamming o v8hd)wq)bos6 n the car's brakes and skidding to a stop. How far would the car have skidded if it had been tw )hobv 8)6sqdraveling twice as fast?

  99.39: The driver of an automobile must carefully contr s d)l p2-wlhg2ns jy04o3xg2iol each of the following devices. Which of these devices can cause an acce4xil2 20yldggjs-)w2p3o h snleration 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 weight of 15000 newtons a onac/ e3 jr7p49ln wyj(z,)ris 24000 newtons. About how much time is needed to increase the rocket ’ spe rj/l97c(p,o)za 4er3jnya wned from 12 m/s to 36 m/s near the surface of the Earth at takeoff?

  07.21: A box slides to the righty.6bb8w* q.(cny c8g3xbb g ti 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 tib*3bxqg.c8(w y yngbbc68 ., rank the sizes of these three forces exerted on the box.

  02.27: The diagram below shows three roller coastbgp*t hsi 4r24 a(0pfeer tracks of equal length. Assume that on all tracks the roller coaster carts start from re4sg p f*r b2et(hi04past 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 showsxi o*kj5( 0sfv;rkol: three roller coaster tracks of equal length. Assume that on all tracks the roller coaster carts start from rest at;r* jx 0okkolv(sf5i: 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 curs7t i2d)lr+ fdved track from point A to point C under the influence of g2+t irsd )7dlfravity. What would be the direction of the cart's acceleration at point

  02.40: A box with a mass of:l6flncc9*9 il4uc rynm g+m 6 50 kg is dragged 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 t fcg :lci m6uc9l+nln9ry4*m6 o 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 again 2adhe 6 k, .fs:xkutymeqm5//st a wall by a 100 N force as shown. Thecoefficient of kinetic friction is 0.30 while the coefficient of static friction ik ,em2/hk6q /d:us. axt5ymf es 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 mower across a horizontal patch of grass 23og2 x78 rnuveq 9:hqxpbxvofog -74with 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 32og2qxervo9vn74ub - 7hg p:q8xfxoforce magnitudes, W, f, N, P is CORRECT?

  06.14: A book leans against a crate o/upro 24d:do z6llxm ,c8v3ki n a table. Neither is moving. Which of the following statements concerning this siluil v6 /:z8cd o,mo 4xkrd3p2tuation is CORRECT?

  06.15: A crate of toys remains at rest on a sleigh as the sleigh is pulled up alwx3/ rti / dc9qa)it0 hill with an increasing speed. The crate is not fasilwarxtq9)i /03 td /ctened down to the sleigh. What force is responsible for the crate’s increase in speedup the hill?