99.36: What happens to the inertia of an object sjqax h89ril ;kbg5i i 6k0/9awhen its velocity is doubled?

  02.14: An intrinsic property of matter is one that does not depend on the qur4j t6n 5umxkqv91zqi 50uqf 2antity of matter present. Which of the following propeur16jqtxqn5 q5 fiv9402zku mrties is NOT an intrinsic property?

  04.16: A 20 kg boulder rests on the surface of the Earth.ts,+bkufg:+, uycau( f( 0 r zqe:rqn1 Assume the Earth has mk, 1(tnuqfcs(u+: 0rrqu ,y +:bz fageass $5.98 \times 10^{24} \; kg$ 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 issqu j7e kh id/c d5cye8,q0ta;eo-4 jg(cbt. 4 the magnitude of the gravitational force acting on the earth by the sphere? The Earth g7, a s(;-e40/dohcqe5iud.q8jtbjt 4yce kcmass is $5.98 \times 10^{24} \; kg$ .

  00.09: Is it possible for g4zt*y6- c rh4u 5kzr fk3m3btan object’s velocity to increase while its acceleration decrease*3tk46hr-5bfgu3tmz ry z 4 cks?

  00.11: A certain particle undergoes erratic motion. At evtr (*;l6le akxqr vq-,ery point in its motion, the direction of the particle’s momentum is ALWAY 6lr- e(q;tlrxk*v ,aqS

  17.14: A block is suspended in the air at the end of hh4uq okoz.ta o, f j64xr:/v4a string held by a person. The person pulls on the string uniformly accelerating the block upward v4a6 ,f/q :4u4ohzjxot .ohkrfor 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 folloke9j/r -9uaqj wing situations is the net force constantly zero on the objecteqa /u-j9rkj9 ?

  13.28: An object is in free fall close to the ground. A person intervenes andz:tii+xd.s*gfk3+y2mya n o 4 slows the object uniformly to rest. Which one ofiyfyx2*.d ag+3s +i ktn om4:z 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 acceleration from gravity is g.

  98.03: An object in equilibrium has three forces, F1 of 30 N,uv9spypf*s fb01d t,1 F2 of 50 N, and F3 of 70 N, actingy, f19p0vsfd b1 t*pus 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 be combineetc-lpwl308q c ;7gsp:n2 v vl to form a resultant with a magnitude of which of the folwel0clp7lvg3qs; t : -nc82 pvlowing

  10.06: Which of the following st)hu8/)te (yx7cfytnrsbwyn +0) +oqw atements is most closely associated with Newton’s Third Law of Motion)btnq(t y wy+0 /cuweo) )rhn+8xsyf7?

  95.06: The reaction fo-t) y;w:if.mcw gjnfd3s v4u;rce does not cancel the action force because:

  14.14: A box rests on the floor of ae, x6-y naozpkz 79rn-v) b:whn elevator. The elevator is accelerating upward. Which one of the following chnevkpx z-: nrbw hay9- z67o,)oices 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 cons- 4ha;utaq,hh8sb k)ktoss*8tant speed. Which one of the following choicetk8;suh)h k baqta4 s*-s 8h,os 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 sp0qj;37 yu2 gyfmp f+hneed of 35 m/s. The batterswings and hits th2f37m h +yjnpqg;u0yfe ball. The magnitude of the force that the ball exerts on the bat is always

  11.13: A physics book sits at rest on a table. :pzojt 2nwv/m v:zprnu1ugcg/74 ,*n On top of the book is a calculator, also at rest. Which one of the following choices is the Nz/ :ctvnn,up ru*/zwpogg1j2: 7 m v4newton’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 conductince4hyqpw7g- z(j,ygclh( i- . g an experiment related to Newton's Second Law. The collected -jz(.,( gq y4ewyc7phcl g- ihdata were displayed on the graph at the right. From this graph, what conclusions can the students make?

  99.03: If the net fo psgdivrjws7y8s5:d )(,+g;z v+ olcrrce on an object were doubled while at the same time the mass of the7+pgoyg5vl +s w d ;)c,s:(vs jrzi8rd object was halved,then the acceleration of the object is

  96.15: A car whose mass is 1500 kg is accelerated uniformly from rest tvr+ +brr*sap.*vj*n co a speed of 20 m/s in 10s. The magnitude of the net force accelerating the car is*jarv*.cvn p r*b+r +s:

  99.05: A tractor-trailer truck is traveling down thsrg0 sao5/n sxz/-( oubd, -iye road. The mass of the trailer is 4 times the mass of the tractor. If the tractor accelerates forward, the force that the trailer applies on tg --s,i /xoos0zuy5s nd/b(rahe tractor is

  99.16: Which of the following principl-h;jnh(yb cd1 es best explains why large tractor-trailer trucks generally accelerate much more slowly that(dch;h- b1njy automobiles?

  99.19: A 50 kilogram xemjupr8 q, 3ct8-6uxskater at rest on a frictionless rink throws a 2 kilogram ball, giving em- 3p urxtcx8uj 8q6,the ball a velocity of 10.0 m/s. Which statement describes the subsequent motion?

  00.13: An object near the surfas-f j j.mnu (m0kd+4rcce of the earth with a weight of 100 newtons is acce ujkf+ .ms 0(4mc-drjnlerated at $4\;m/s^{2}$ . What is the net force on the object?

  98.25: A car whose mass is 1200 kg is acceleratedwnv18j+x,ngk f;e.s i from rest by a constant force of 2400 N. Wej s8g+n nwkf;ix1v.,hat is the speed of the car 8.0 s after beginning?

  98.32: A 3.0-kg block with initial speed 4.0 m/s slides across a rough ob i ** 5giu jgt)9q/yhg)r6fh,tm;dihorizontal floor before coming to rest. The frictional force acting on the block is 3.0 N. How far does the block slide before coming)6imytd/tr g9*;ig*hjf) ,i 5 hb uqog to rest?

  95.38: A block with initial velocity 4.0ps6usb b,,hlo/8 m/x5r,axm+ d2nm jb m/s slides 8.0 m across a rough horizontal floor before coming to rb8s /mxbh roau6ldj,/2n,mmp5s+ bx, est. The coefficient of friction is:

  09.21: A 20.0 kg box remains at rest on a horizontal surface whilee)0yja21h rkv 1* k,9yasbmxe a person pushes directly to the right on the box with a force of 60N. The coefficient of kinetic friction betw2y ysr 0hxekaab1 *jekm)1v 9,een 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 initi)mjy/e zh 1xp *o+qdqr //icx;(r t:37r jmogually moving at 8 m/s accelerates uniformly to rest on a horizontal surface. The block travels a distance3r(y7r x1p/zm oh:mqx)*+e i/r/c; qdtougjj of 12.0 m during the slide. Which one of the following 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 at a speed v wit ip but0u6-uxaivhw+h4( 8l7 mh its brakes locked. It then hits dry pavement and skids to a stop in a distanci 76um8+bah0lut4xivh- w pu(ed. 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 slide85-9 ked 9dzbt xwo hqor2j4j,h,y6zps across a patch of ice at a speed v with its brakes locked. It then hits dry pavement and skids t6dq4o wrkj edbph,2 5 8zjt99o,xy-z ho 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 sl*fp) el4ana r.5eka(g0m d7cx amming on the car's brakes and skidding to a stop. How far would th7e)x ea5drpn a . kcmflag4*(0e car have skidded if it had been traveling twice as fast?

  99.39: The driver of an automobile must cz5z)(jai6 i/bcsipl sh (6ec2 arefully control each of the following devices. Which of these devi5jsl i scpciaz h2/6(z)b6i( eces 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 w)(q r sm rov14ylw,v 8,4pkqrnd(xl,eith a weight of 15000 newtons is 24000 newtons. An lqo,l4q14, dkvvsm er y() 8(xrpr,wbout 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 to the right across a horizontal fyjxp-vm-y6m)ax 1i55m3 h1 t fik;z hmloor. 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 exerted on the box5my -xz-m t y)i akphv 5h;631i1mfjxm.

  02.27: The diagram below shows three roller coaster u anwh -jjz+ (4nut17ftracks of equal length. Assume that on all tracks the roller coaster carts start from rest at the same elevation zt1(afj4+-uu 7jnwnh 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 lenggv zlfy9( 2)-,pqrh )gfhg*oqth. Assume that on all tracks the roller coaster carts start from rest at the same elevation and moves frictionlessly over the tracksqzyh( fg 9 o) )gfp-2r*ql,hvg 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 curved track wjgeb 0q8q n. 9sd*l/jfrom p ejn8b jdwqs.9 lq0/*goint A to point 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 dgb6 q8 m(.ykzt 1a;ywtragged 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 by6.1;8yktwmtza( g qthe 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 an*0l 13rb(ful+i uz fat 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 second?a0( lnluf3u f +z*irb1

  05.10: A homeowner pushes a lawn m1sr (t:tkjjqb *ncjz,p s2p57ower across a horizontal patch of grass with 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 tk 2t bnjqz* tjpj(s,rs:571c phe 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.k+ 4g6g;;vo77 +ugoxu+ tkk pjy sfrd. Neither is moving. Which of the following statements concerning k4 s+xkd;+7gu+ygf p u .7;j6 trgvokothis situation is CORRECT?

  06.15: A crate of toys remains at rest on an:asd;k .-afu sleigh as the sleigh is pulled up a hill with an increasing speed. The crate is not fastened down to thekafad:-n;s u . sleigh. What force is responsible for the crate’s increase in speedup the hill?