99.36: What happens to thhq9tep(*n- vvbt 6*fr e inertia of an object when its velocity is doubled?

  02.14: An intrinsic property of matter is one that ihfcx7-8lo4dr ,ejc :l; zzu+does not depend on the quantity of matter present. Which of the followingl;j7uz cldc oe - +fr,z8x4:hi properties is NOT an intrinsic property?

  04.16: A 20 kg boulder rests on the surface of the Eartm/3 n shv3pq*th. Assume the Earth has mass qtm*ps h/n3 v3$5.98 \times 10^{24} \; kg$ 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 ilk9) ,wu ye;uxs the magnitude of the gravitational force acting on the earth by thx u; 9u)k,ylwee sphere? The Earth mass is $5.98 \times 10^{24} \; kg$ .

  00.09: Is it possible for an obj/he:8t.efcc)u v il,:g5a xigect’s velocity to increase while its acceleration e ci)/fa5,8:ul.gchegi:xv t decreases?

  00.11: A certain particle undergoes z8gio s/vj.v86umeu / erratic motion. At every point in its motion, the direction of the partic v.86joizu/8u/ev m gsle’s momentum is ALWAYS

  17.14: A block is suspended in the air at the end of a string held by a persmtv iy(a( j-gsj*tugr: :6-deon. The person pulls on the string uniformly accelerating the block upward for a short time. During this time, which one of the followingt *ig:ey:-gd(6asrv t- ju(mj 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 situkx djtxa6x-d+6 s4*jpations is the net force constantly zero on the osxxdjkp+6- 46 jxad*t bject?

  13.28: An object is in free fall close to the ground. A person intervenes6zp4ocipf8qw3cp: g ,;d6bch and slows the object uniformly to rest. Which one of the following stategq i6bd 46cp: 8w;,c3 phpocfzments 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, F2 of 50 N, ansjw o3i6nssod /d/+k4d F3 of 70 N, acting ojn4ok/6ds3w+i d/ sson it. The magnitude of the resultant ofF1 and F2 is

  01.07: A force of 6 Newtons and a force of 10 newtons can be combine to fpb /abf4o. k -pdo:qe)orm a resultant witk4 )ab/ bde-o: .opqfph a magnitude of which of the following

  10.06: Which of the following statements is most closely associ qc1 64og6p l4zkfy+ww +tm8pnated with Newton’s +kqwgnp1+4 m8wo 6f6zt ply4cThird Law of Motion?

  95.06: The reaction force does not cancel the actk i2sxemo/t/adkf**m6h+vl71 qq u 6 bion force because:

  14.14: A box rests on the floor *1dmg0a ,eka4veqcx4 of an elevator. The elevator is accelerating upward. Which one of the following choices best represents the Newton’s Third Law pair force 0,4mga*e4xvqdc1 ak eto the gravitational force acting on the box by the Earth?

  15.15: A skydiver falls downward through the air with consta8zm bz3i o7*vant speed. Which one of the following choices correctly describes the Newton’s Third Law pair force to the air resistance acting on the sov78z3 baim*z kydiver during the fall?

  06.08: A baseball is thrown by a pitcher with acbv do/7evp2imtnokq.w+ (*o0i21ey speed of 35 m/s. The batterswings and hits the ball. The magnitude of the force that the ball yeni/ qe 22ioov wv(d*kc+.t7p mbo01 exerts on the bat is always

  11.13: A physics book sits at rest on a table. On top of the boynl.mo e iiq,:d+ /,vnok is a calculator, also at rest. Which one of the following choices is the Newton’s Third Law pair for.:+,nmdn lve, /iqiyoce to the force that the table exerts on the book?

  05.06: The students in a Phyi9( 4zijsnd 9ssics I class were in lab conducting an experiment related to Newton's Second Law. The collected dat9 is9(zs 4jidna 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 whiws)df jyr* t5zg)/ *eple at the same time the mass of*)w grj)p/dz*tsef 5 y the object was halved,then the acceleration of the object is

  96.15: A car whose mass is 1500 kg is accelersbxf;(7 befcg*l p;0b ated uniformly from rest to a speed of 20 m/s in 10s. The magnitude of the net force accelerating the car ibxb fe;lf0gcp (;7s*bs:

  99.05: A tractor-trailer lzm5.hm)dn cuom0-s9 truck is traveling down the road. The mass of the trailer is nsl-.ummd o95mz0 hc) 4 times 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 l3 b4 ooe+,blet f,bpnvs *d4)sarge tractor-trailer trucks generally accelerate muceb l),+s, 4ope*4t3bfdsn vo bh more slowly that automobiles?

  99.19: A 50 kilogram skater at rest on a vdh6p(w2 h5cyiwv/7j (rx ks 5tes/6h frictionless rink throws a 2 kilogram ball, giving the ball a velocity of 10.0 m/s. Which statement describes th5s2vw(eih/vdc(whxrp5 /s6 kh t j7y6e subsequent motion?

  00.13: An object near the surface of the earth with a weight of 100 newto.: wi:r)z btm3vbc )tdns is ab.i b:t 3z)wtcr)dv:m ccelerated 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 b s nse.(jkjs,7y a constant force of 2400 N. W.j(s7k sjns, ehat is the speed of the car 8.0 s after beginning?

  98.32: A 3.0-kg block with initial speed2 ist a-1i;k,zzdms v- 4.0 m/s slides across a rough horizontal floor before coming to rest. The frictional force acting on the block isi s,z disvm2 1a-kz-;t 3.0 N. How far does the block slide before coming to rest?

  95.38: A block with initial 6kha4c s:h.p fvz;2 q xmkih38 2drz1fvelocity 4.0 m/s slides 8.0 m across a rough horizontal floor before coming to rest. The coefficient of h1xz k fa62k 2sd8pfhicrh; mq3:4zv .friction is:

  09.21: A 20.0 kg box remains y*cz+hu8 s+ft1 gdo m7at rest on a horizontal surface while a person pushes directly to the right on the box with a force of 60N. The coef1o+ t 7*sf8cdguy+ hmzficient 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 * sbebe gme+;bs1g,2xav o4:jrest 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 ki xo1veb ;b as*gs,+b: m24egjenetic friction between the surface and the block?

  00.21: A car of mass m slides across gbq)dha+cy iaep t *b(6 il+m(n -+5b6zn;xbna 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 between the tires andnq+tbnhb+leiz*i g)ybnxc+(d am-(5a6 ;bp 6 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 at a speedn9g lm t9f3k4a v with its brakes locked. It then hits dry pavement and skids to a stop in a distanced. Themt 3a lgk9f4n9 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 a1hz2z6 pmncb40(mk isn emergency stop by slamming on the car's brakes and skidding to a stop. How far would the car hak 2n4p( m0z6b1hm csizve skidded if it had been traveling twice as fast?

  99.39: The driver of an 5ni0pki6)ipeu tgd+j2euuld6ph2 tw s ;o.82automobile must carefully control each of the following devices. Which of thes6;eluo0+ 8dp2tn6p2i5e iswpd. uk htgi)u2je 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 240000.n7 d6xd1njm wfd bg2 newtons. About how much time is needed to increasn g2. 10xd 76dwbdmjnfe 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 right across ef(: aa htsws+rs zcu:n,2 x:/0 dfpn(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 exerteds2 hf wnae+(, apfc/: xsd:r:0 nzts(u on the box.

  02.27: The diagram below shows threwxltvud1;q 2x- it0c8rs (n:de roller coaster tracks of equal length. Assume that on all tracks the roller coaster carts start from rest at the same e2i1 qxt0du ;8nr:csl-w dtv(xlevation 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 rollw /l2ojmq,e x0er 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 tx/0m q 2w,jolehe 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 curvedwnrca4mgk883ml0;w oryc)m 2 *m)d kw7 w7 tzy track from point A to point )*wcw7 yztcykw7mln84dmmar 82 g; mwr 3ok0)C under 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 dragged across the floor by a rope whi:a;r :oh6 t3.fjhnrxgch 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 ro. :fhgjahnxt: r;63250 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 blockelm f9kyp77m lxtz10dja z014 initially at rest is pushed 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 of the friction acting on the block after a time of 1 sm70l1f41a pjdz 9 0zk7tmylxeecond?

  05.10: A homeowner pusheiz jb9ov6mtk o.0v4 m;s a lawn mower across a horizontal patch of grass with a constant speed by applying a force P. The arrows in the diagram correctly indicate the direcj6; mt9m.kb vo40ivzotions 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 again6blc /*cabit8 df1yc7st a crate on a table. Neither is moving. Which of the following statements concerning this situation iscc/17a b8fby *it 6dlc CORRECT?

  06.15: A crate of toys remains at rest on a sleigh as the sleigh-:a m: cvi qc;*n.6szflc q*z)cbt4nb is pulled up a hill with an increasing speb:c6* nl cz ic)qms-*z4nq:v.tc fb;aed. The crate is not fastened down to the sleigh. What force is responsible for the crate’s increase in speedup the hill?