99.36: What happens to the inertia of an object when its veloci*at0fowq-n yb5z :mw) ty is doubled?

  02.14: An intrinsic property of matter is one that does not deuv*z)bth.qt5yj j *i: pend on the quantity of matter present. Which of the followinjb.uit:vtz y)j *h5*q g properties is NOT an intrinsic property?

  04.16: A 20 kg boulder rests on the surface of the Earth. Assume the Ea0talow tmhu.2s 74e 8odld/p gm-.rw)rth has mass d r)oltsm42gl-0e .au. od 7wwmh/8t p$5.98 \times 10^{24} \; kg$ 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 sp21wt p s*ga sei/v/2*hl bfjy7)-uvin free fall near the surface of the Earth. What is the magnitude of the g)bfhj 7vtw2yp -2*lv/1gae*s/s usip ravitational 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 y+bmy9j+ni9gnm t -o4increase while its accelerationj4n9ngmi y y9+ -o+tmb decreases?

  00.11: A certain particle undergoes zk/5zp9:cy, ik sd 7f,qh6 kadwp;m (gerratic motion. At every point in its motion, the direction of kzag(i;, 5d md q/76wpp 9sch,ky:kfz the particle’s momentum is ALWAYS

  17.14: A block is suspended in the air at the eod xod80*y-x nnd 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 Lax8dn xdy0oo* -w pair force to the force of the string on the block?

  07.18: In which one of the following situations is the net force constfs/xixu0fds81 )g8j1fz g g fg-l4cq5antly zero on0) f qg -gff8ilgz cxx4fdg5u8 1s/sj1 the object?

  13.28: An object is in free fall cmtauij3vw.-h q4t6jlvd 86f :lose to the ground. A person intervenes and slows the object uniformly to rest. Which one of the following s-ul3tm64av68. jiq :vhtd fwj tatements 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 fxb9m yzmd+ez,v c-*;k )h9f g4s ;frfaorces, F1 of 30 N, F2 of 50 N, and F3 of 70 N, acting on it. The , fge4a99mfb* ;zyrvzsf dkm+x-h )c;magnitude of the resultant ofF1 and F2 is

  01.07: A force of 6 Newtop14kavda/5 r/ n3oiwlns and a force of 10 newtons can be combine to form a resultant with a 5i la3/d4n o/wp1a vkrmagnitude of which of the following

  10.06: Which of the .a pu3i .*7p4zqtjrr lfollowing statements is most closely associated with Newton’s Third Law* 3r.p qutp47irjz.al of Motion?

  95.06: The reaction force mg-w7 pa1rzpu8t.o9i*cb z7 rdoes not cancel the action force because:

  14.14: A box rests on the floor of an elevator. The elevator is acceleral3* ,orq o, *ecp/halxting upward. Which one ofle *cl*3, q r,xhoopa/ the following choices best 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.eg+ch7)vb4otg3 at b5 Which one of the fo a+5tgog b3t4) chbev7llowing 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 thro0p0d-n-/fk ehi 0 sfudwn 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 is fdne-k 0ps/-fhi u0d0 always

  11.13: A physics book sits at rest on a table. On top of the book i 9aw7el1 fq1tzox/uc.eat05k s a calculator, also at rest. Which one of the following choices is the Newton’c/ .a5x0q 1oew k97ut1zflea ts 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 conductqd 5ub;6oqax2s18 v aeing an experiment related to Newton's Second Law. The collected data were displayed on the grap6du2qvqa8 axso;15be h at the right. From this graph, what conclusions can the students make?

  99.03: If the net force on an object were doubled while at ts91z v/ b0buhk) pdp9bhe same time the mass of the object was halved,then th9)b 1pb9/kszb0 vpdhu e acceleration of the object is

  96.15: A car whose mass is 1500 kg is accelerated uniformly from rest to a speu eo-w 4(l/wo vvtvb52ed of 20 m/s in 10s. The magnitude of the net force acce(25 wu/oo vveb-v4 wtllerating the car is:

  99.05: A tractor-trailer truck is t .9.j/f3benwmx . d ajvn0hc+aw c:/ooraveling down the road. The mass of the trailer is 4 times the mass of the tractor. If the tractor ac+w93ajj 0oa:v /x n./n.fmwceh.bco d celerates forward, the force that the trailer applies on the tractor is

  99.16: Which of the following principles best explains why large5xi8n )nz:v es tractor-trailer trucks generally accelerate much more slowly that auxn zn5)sve8:itomobiles?

  99.19: A 50 kilogram skatsvt4 i,9fw z./saljt- er at rest on a frictionless rink throws a 2 kilogram ball, giving the ball a velocity ofal4,w /sstzt -9fjvi. 10.0 m/s. Which statement describes the subsequent motion?

  00.13: An object near the surface of the earth with a weight of 100 ney+u u5-+erbc qb;1bx hwtons is accelerueb+-b;yrc1 huq5b +x ated at $4\;m/s^{2}$ . What is the net force on the object?

  98.25: A car whose massumdt5,vqf .b+r.zz6 y is 1200 kg is accelerated from rest by a constant force of 2400 N. What is the speed of the car 8.0 s after beg5trf.bzzv ,+yd u.6 qminning?

  98.32: A 3.0-kg block w oet:bu3sm7 evk(y76to(utj.ae a44qith initial speed 4.0 m/s slides across a rough horizontal v oe6.etsb eoqm :aa7 ut3y7k(4j(4tufloor before coming to rest. The frictional 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 ublkx ( 88/gdd4.0 m/s slides 8.0 m across a rough horizontal floor beforebdg/8uxk ld 8( coming to rest. The coefficient of friction is:

  09.21: A 20.0 kg box remains at rest on a horizontal surface while a persukr y1)b /z4pzon pushes directly to the right /z1 )yru4p bzkon 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 resn6y)u x*ijec dw)3v 0ccs1 j1st 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 ))j 1s0wxv3i 6d*njye1 ucccs kinetic friction between the surface and the block?

  00.21: A car of mass m slides across a patch6f* fi80y yape 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 ti*yyi 6fa8e0p fres 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 pa9k4ubs ayyi8i75p2s xx;za 0 ctch 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 kis 4y5 2;xkis xzc7b8iau9a p0ynetic 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*al c wlcgai( ,i-1l)u car makes an emergency stop by slamming on the car's brakes and skidding a( l )iag1ci-*cl,lu wto 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 ze pu-e:eh9w. carefully control each of the following devices. Which of these devices can cause an acceleup e:h9-ze .weration 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 weigh .)r)0u8 mn gaj 6cun4rzkg8pat of 15000 newtons is 24000 newtons. About how much time is needed to increasnagnur)c0 .)8rj ma48g z6pk ue 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 e/okpa u l3 moe8v+sf ,9id5a0the right 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 anddup8 fik3e5am sv+o9ea lo0,/ the box accelerates to the right, rank the sizes of these three forces exerted on the box.

  02.27: The diagram below shows c ks dbpxp:dlwl8ivt-.j9 8m e9 ;5:izthree roller coaster tracks of equal length. Assume thatc z8;bki :dlx5 im9lpp dw9.t8v-e :sj on 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 shows three roller coaster tracks of equal length w8s3*+ wfbyvd. Assume that on all tdws +w3y 8bf*vracks 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 rolld boh:zpm;gwi/kk.+ob 0.k q ,ercoaster cartrolls frictionlessly along the curved track from point A to point C under the ;bm hokk,wdk iq.bg: .0z/o+p 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 acrosd mot 57aqrv6na(ugo 4h(w2,ss 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 to move the crate at a consta,masr 5(o2tqgu vh awo6 d7n(4nt speed of 20 m/s as shown in the diagram?

  04.40: A 6.0 kg block ind r 5/ zo(p(v stkod15s7v8+/vf jjyjwitially at rest is pushed against a wall by a 100 N force t( 7pjv1 js5r5y(/ /vdvjd8kzosowf + 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 second?

  05.10: A homeowner pushes a lawn mower across a horizonta hdiu7+32s* s2tf thxflyn: 2pl patch of grass with a constant speed by applying a force P2hn 32s*ft ysi t:dx 2hf7+plu. 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 magnitudes, W, f, N, P is CORRECT?

  06.14: A book leans against a crate on a table. Neitn+qm8i* x exl*her is moving. Which of the following statements concerning this situa8 * m*lx+neixqtion is CORRECT?

  06.15: A crate of toys rl8 ;eho+m pzu6 1gs.mremains at rest on a sleigh as the sleigh is pulled up a hill with an increasing speed. The crate is not fastened down glupm1.z6mer;h8so +to the sleigh. What force is responsible for the crate’s increase in speedup the hill?