99.36: What happens to the inertia of an object when itse3m4x s.tigpxn *, o(s .qu;if velocity is doubled?

  02.14: An intrinsic property of matter is one that does not depend anjq 7dg72d,rxd9ehwp j5cf kwt)13 2on the quantity of matter pre731r5a272c j fd 9wqdwd) gtxhnejp ,ksent. Which of the following properties is NOT an intrinsic property?

  04.16: A 20 kg boulder rests on the surface of0 qnp rnw7-mi4 the Earth. Assume the Earth has masr7-pw ni0mq4ns $5.98 \times 10^{24} \; kg$ 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 tkzt6 ,-( bwaivhe Earth. What is the magnitude of the gravitatikzi6a bwv, (t-onal 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+( ay:gu8/u o ta*ua25kq upfv object’s velocity to increase while its acceleration dec5afp+uto 8u/2v au:y(qu* ak greases?

  00.11: A certain particle undergoes erratic motion. At evz-zr,tv n3u *+ps eu sl..wd:qq e*4boery point in its motion, the direction of the particle’s momentum is ALW:epl zbsve -d4t.,r*u3s+n oqu.wq z*AYS

  17.14: A block is suspended in the air at the end of a string 8kbunj4t6u b xx*w+2bheld by a person. The person pulls on the string uniformly accelerating the block upward fj u*xk 6+8n b2xw4tbubor 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 the block?

  07.18: In which one of the following situation5f;m,e-ir0oz ,y/.juet u3ozqwq ub 0 s is the net force constantly zero on m5toib ju.,0oz-f u0/ ,3eewquz;ry qthe object?

  13.28: An object is in free fall close to the ground. A person inqqra4v5 8pl,z tervenes 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’s acceleration is a and the magnitude of the acavq zlq8rp,54celeration from gravity is g.

  98.03: An object in equilibrium has three forcjdzk(*bym/to7x m+w- es, F1 of 30 N, F2 of 50 N, and F3 of 70 N, acting on it. The magnitude of the r+mtmxkz y(/*7- jobdwesultant ofF1 and F2 is

  01.07: A force of 6 Newtons and a force of 10 newtons can be combine tojg,4c2e u wy1 -04358 iciwwkjykk owh form a resultant with a magnitude o, ccowk5e3h 2gkyjiw- iw k41w4y8 j0uf which of the following

  10.06: Which of the following statg lv3s+ 0lpedg+ +i 6lxl-x0rdements is most closely associated with Newton’s Thilx-lpxdgr+6 l lgd30e+i s0+ vrd Law of Motion?

  95.06: The reaction force does not cancel il-cu,,x0lta(9 ebnlre6aq- the action force because:

  14.14: A box rests on the floor of an elevator. The elevator is accelerativn6j23sy24m93t e t ujagu g-yng upward. Which one of the following choices best represents the Newton’s Third Law pair force to the gravitational force acting on thv6s3et tjn92j2uy4ma-uy3gg e box by the Earth?

  15.15: A skydiver falls downwars;z7 ann16ax1 yw,ncwu/i hr+d through the air with constant speed. Which one of the following choicz7c;aa nh16uxwnn, y 1wi+s /res 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 with a speed ozw3n3r(q,xoyzw t11 l f 35 m/s. The batterswings and hits the ball. The magnitude of the force that the bax(z3yw 1o,r n 1w3qlztll exerts on the bat is always

  11.13: A physics book sits at rest on a table. On topi hg7 2 521d3yhrisjmevr:qs9 of the book is a calculator, also at rest. Which one of the2svq e i1h5r 7hj9 rd:yig3s2m following choices is 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 conductintwel.u0c it 0zl: r0*y)oh6mr g an experiment related to Newton's Second Law. The collected data were displayed on the graph at the right. From this graph, what conclusions can the students make?t*our yl l)0 wtci.6z:0me r0h

  99.03: If the net force on an objekk7svvww 9x)tew v;3; ct were doubled while at the same time the mass of the object was halved,then the acceleration of the w7tv)w; vex9kv;swk3 object is

  96.15: A car whose mass is 1500 kg is accelerated uniformly fx /qj 7(upqu5:do 7wpqrom rest to a speed of 20 m/s in 10s. The magnitude /q7o( dwpq q5juu p7x:of the net force accelerating the car is:

  99.05: A tractor-trailer truck is traveling do( idwb-4 wcuv1wn the road. The mass of the trailer is 4 times the mass of the tractor. If the tractor acceleb iv4dwuw-c( 1rates forward, the force that the trailer applies on the tractor is

  99.16: Which of the following principles best explains 8l 19dtx ca;pzwhy large tractor-trailer trucks generally accelerate much more slowly tz x;la89dcp1that automobiles?

  99.19: A 50 kilogram skater at rest on a f )qr+psr6op1w rictionless rink throws a 2 kilogram ball, giving the ball a velocity ow+s6prp or1 )qf 10.0 m/s. Which statement describes the subsequent motion?

  00.13: An object near the surface o4 .ku2yj bksq8f the earth with a weight of 100 newtons is accelerated at jy84 2ubk .skq$4\;m/s^{2}$ . What is the net force on the object?

  98.25: A car whose mass is 1200 kg is accelerated from r1 dg6ectk, +f8ts z/ofest by a constant force of 2400 N. What is the spee1+ ffs6/oke,dctz8tg d of the car 8.0 s after beginning?

  98.32: A 3.0-kg block with initial speed 4.0 m/s slideuk6c* 0i4cp7e;v ;gfrqmgp- vs across a rough horizontal floor before coming to rest. The frictional force acting oneq-gu067; mrvi* ;cgp4pk cfv 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 sli1k dzn xk*6: ezuzp3:cdes 8.0 m across a rough horizontal floor before coming x 13*p:6 z:knzukedcz to rest. The coefficient of friction is:

  09.21: A 20.0 kg box rema7j0pmwha/e) vo l 8 vai)f4c:pins at rest on a horizontal surface while a person pushes directly to the right on the box with a force of 60N. The coefficient of kinetic friction between the box and the surfajchw:evm )v7f/loai p4a)08p ce 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 ac 2m9:jbp)ycp1vu d: hucelerates uniformly to rest on a horizontal surface. The block travels a distance of 12.0 m during the slide. Which one of the folloc:pmdup2uv1 : hb jy)9wing 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 atbr4k/ o 8gztl2)q jbd qw:o8)dx0 x(fy a speed v with its brakes locked. It then hits dry pavement and skids to a stopzqotw)8y )82jxobdk:f glb(4 0xdr q/ 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 +lbjb u71w;ukcue,: x,tz hm8 across a patch of ice at a speed v with its brakes locked. It then hits dry pavement and skids to a stop in ;zukj,x :8bh weul +71 ,mcutba 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 on the ck() 8sq xpcs2ear's brakes and skidding to a stop. How far would the car have skidded if it had be k8spqxs c()e2en traveling twice as fast?

  99.39: The driver of an automobile must carefully control each of the folloirvw)s5u4 4/osi ;4o q, vfqipwing devices. Whicus q)vwvi, q5 sp/4ofoii44r;h 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 weight of 15000 newtons is g; k*6wjmxzv:6z-l ls 24000 newtons. About how much time is needed to increase the rocket ’ speed frk*sm jlzl6z:; xg v-6wom 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. Afr+r :ju1; fc: rq2oqrstj3g: person called Ted exerts a fogr 2:3c 1 fj uq;sf+r:rqojr:trce 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 exerted on the box.

  02.27: The diagram below shows three roller coaster tracks of equac3:jso jdo: z7l length. Assume that on all tracks the roller coaster zj:odcs 37j :ocarts 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 three roller coaster tracks of equal length.cv;; nr go q:-vm8elzayd+( j3y8r+ im Assume that on all trac;n8rva+ lm i:;zj8 y vcr(e+m3-yogqdks 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 roll jb ufm6 jg1d/,2d2pxrercoaster cartrolls frictionlessly along the curved track from point A to point C under th1uj/x2 drj2p ,g mdfb6e 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 ir3 busx 5kk ,em+z/)f nkso* xp;l/c1ps 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 t kb+e; f5s/x n,o1lu/) rzk3xkpmpc*she 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 100 N 9lt2qsi86ueb 4kerio88 6mdb force as shown. Thecoefficient of kinetic friction is 0.30 while the coefficient of static friction is 0.50. What is true of the friction acting on the blockoitl 8emb68eb 6s2kq9 i8rdu4 after a time of 1 second?

  05.10: A homeowner pushes a lawai0v2l z /qvn rehw(8dq0urqr x2b)7 4n mower across a horizontal patch of grass with a constant speed by applying a force P. The arrows in the diagram correctly indicatenhq0 wue87zr0rv)larid 4 /xqb22qv( 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 moving. Wo+ vc895sxfot (oo d y(y,k,xnhich of the following statements concerning this,tfyd,x( (c9o85n kx o+osvoy situation is CORRECT?

  06.15: A crate of toys remaib5cng tz h3j x2.y+j0ins at rest on a sleigh as the sleigh is pulled up a hill with an incrb0j y.tzcn+53 xi hjg2easing speed. The crate is not fastened down to the sleigh. What force is responsible for the crate’s increase in speedup the hill?