99.36: What happens to the inertia of an object when its velocity is doublxz. 5p*wij/cn, sf1h /h1z klaed?

  02.14: An intrinsic property of matter is one that does not depe ;0mhxu5nuz*f xyp * v9g,uoi0nd on the quantity of matter present. Which of the following propeh0 *5u0u o9 fix;,yum nv*pxgzrties is NOT an intrinsic property?

  04.16: A 20 kg boulder fnb +z4fajn5 0 2xpp)trests on the surface of the Earth. Assume the Earth has masf)x ppn+24n f05bztj as $5.98 \times 10^{24} \; kg$ 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 Ear q1aj-m e/m/hucq.)zmth. What is the magnitude of the gravitationh.1z/uq c-me)aj/ mmq al 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 increase wssy0cqd 23wbhs t/(h-z5c x+while its acceleration decreases?swbqs2shy+t0 h-c 5/3 xcd(w z

  00.11: A certain particle undergoes erra u)ld-/wfsr3,fazfh5 tic motion. At every point in its motion, the direction of the partifl-w,u5z d)/s3a rhf fcle’s momentum is ALWAYS

  17.14: A block is suspended in the air at the end of a smiqqdpb1(5w e 8j *ze.tring 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 th* 8qq.ie5j(p ez1dbwme force of the string on the block?

  07.18: In which one of thj6.qhv ztd.ul. .,he1zq9i gwe following situations is the net force constantly zero on the objegql .thv. zwe 9j,1dhuqz .6.ict?

  13.28: An object is in free fall close to the ground. A person intervenes and spc*(l q3.nplc; un o gdz2fglo7x/*7rlows 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 magnifoc/ op 3rll7 (n.2*q*xn7pzcglg ud;tude of the acceleration from gravity is g.

  98.03: An object in equ0k0k c1u*8*uk x ufxjh2 cyaoro vq2**ilibrium has three forces, F1 of 30 N, F2 of 50 N, and F3 of 70 N, acting on it. The mag *0ak qo1cxu 0*uh8u2yxvck2**rjf o knitude of the resultant ofF1 and F2 is

  01.07: A force of 6 Newtons and a force of 10 newtons :gwq+ jhy3kc;can be combine to form a resultant with a magnitude of which of the following cyjq: h+g;wk3

  10.06: Which of the following statements is most closely associated with Newton3h *rj lk3ct06 9zgh2s 6qboit’s t zcl6tg bh32j*o 3rsi06h9kqThird Law of Motion?

  95.06: The reaction force doesrf:vizbw -o) 2 not cancel the action force because:

  14.14: A box rests on the floor of an elevator. The ele7 ygmo)d)ou8l2ztp i.vator is accelerating upward. Which one of the folylgp 7 omiz.82t)udo )lowing 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. Wzzoehlba4w4b 0wyz/r ; m+g; 8hich one of the following choices correctly describes the Newton’s Third Law pair force to the air resistance acting on the skydiver durio8gyz0zla w44rbw;/h +be ; mzng the fall?

  06.08: A baseball is thrown by a pitcher with a sjs,dk lya4) ,fpeed of 35 m/s. The batterswings and hits the ball. The magnitude of the force tha4 jl,,k) fdasyt the ball exerts on the bat is always

  11.13: A physics book sits at rest on a table. On top of the book is a c78*kz 8q+*fkt o(ywrsljjlc /alculator, also at rest. Which one of the following choices is the Newton’s Third Law pair force to the force that the table exerts on the bl 8j(l8q *kc+*sj7/trk zw fyoook?

  05.06: The students in a Physics I class were in; 7t yffi96gt12mxlm )kqs9fo lab conducting an experiment res y6g lqt12)fm xk9mffoi97;tlated 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?

  99.03: If the net force on an object were doub4hmv .v j ea3m9ki arsg)(41ajled while at the same time the mass of the object m934.emk)j ( vivarajg1ahs4was halved,then the acceleration of the object is

  96.15: A car whose mass is 1500 kg is accelerated h ug2m+fqhf7y r-pv020f+ve yuniformly from rest to a speed of 20 m/s in 10s. The magnitude oyfq0v2+mef fhpy+-hvru0 7 g2f the net force accelerating the car is:

  99.05: A tractor-trailer truck is tr*9 heww 3qa5ku*kbm :naveling down the road. The mass of the trailer* *5k nh3ku am9:bqwwe is 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 expngy h+hm+n/(jlains why large tractor-trailer tru+ygjn+hn m(/ hcks generally accelerate much more slowly that automobiles?

  99.19: A 50 kilogram skater at resptlbj-nbf b 2f-2*/ zjt on a frictionless rink throws a 2 kilogram ball, giving the ball a velocity of 10.0 m/s. Which statement describes the su2*z ptljb jbf/f -2-nbbsequent motion?

  00.13: An object near the surface of the earth with a weipe b/5-sorypl9w:* fhght of 100 newtons is accelerated at bls:f *9oey/ w rpp-5h$4\;m/s^{2}$ . What is the net force on the object?

  98.25: A car whose mass is 1200 kg is accelerated frovp 0tz-fwxf4+a4 a +vum rest by a constant force of 2400 N. What is the speed of the car 8.0 s +0uvt af xa+ -4vwf4zpafter beginning?

  98.32: A 3.0-kg block with inittmspgyq3r kh 7ckn2.3 s,c:m/ial speed 4.0 m/s slides across a rough horizontal floor before coming to rest. The frictional force acting on ther syc3 ch2kp3sk, : qmtm.7g/n block is 3.0 N. How far does the block slide before coming to rest?

  95.38: A block with im (gcgquhsmham-og :lk( 536. nitial velocity 4.0 m/s slides 8.0 m across a rough horizontal floor before coming to rest. The h(mh. qu(ago-3l5ckgms : g6m coefficient of friction is:

  09.21: A 20.0 kg box remains at rest on a horizontal surface while a person m 4ugx)85*uypvza /dhpushes directly to the right 8um/av4u*)x dzhypg5 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 uniform x*g(zhsbj q85ly to rest 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 kinetic friction betwh8b ( jq5xgs*zeen the surface and the block?

  00.21: A car of mass m slides across a patchg -+jruaj1u8dcu kp+5 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 and t1r+uuduk 58jgpja +-che 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 va:c qgk- 5j0x yxgm86l:mrm0slides across a patch of ice at a speed v with its brakes locked. It then hits dry pavement and skids to a stop in a dl-g0:vjq5r k8axmg:mx 06cy mistanced. 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 emerg: 6cci lk8(iwx (j;rxy z;3 whly)s4f7 ptlt)bency stop by slamming on the car's brakes and sk xfsr 8643y;k(t)b7:y;li tzwxh c(lic pj)lwidding to a stop. How far would the car have skidded if it had been traveling twice as fast?

  99.39: The driver of an automobile mus1vgsf 8b*gzko/* j ot*t carefully control each of the following devices. Which of these devices can cause an accelerati8*g1 * oftsbojzk gv/*on 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 weighanp/(rj*s*.l7 7zm zss4oa a at of 15000 newtons is 24000 newtons. About how much time is needed to increase the rocket ’ speed from 4as7mp7asl.oa n j/z*r s*(za12 m/s to 36 m/s near the surface of the Earth at takeoff?

  07.21: A box slides to thf5ez21u4slengn :-lvhh4i i,h a f2d5e right across a horizontal floor. A person called Ted exerts a force T to the right on the box. A person called Mario exervflu h2:le gn za1,de hfi4sh554 i-2nts 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 cosd 4l)p* ,qbxmatoy.0 aster 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 t xp4*,ob t sq.dal)0myo 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 belowg.ef(-v0w( *+znt ca eu*erp 3my yzw1 shows three roller coaster tracks of equal length. Assume that on all tracks the rolleruy**za- 0r3 mg.1ewewpft nz(c v(ey+ 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 rollercoaster cartrolls frictionlessly along the curv a;5*bydo4e6n ggs(j 6qs g2jjed track from point A to point C under the influence of gravity. What would be the direction of the cart'n2*so6g jj 4d (gyab6esgj5q;s acceleration at point

  02.40: A box with a mass of 50 kg is dragged across the floor bqxs3c mc.skxyqux1/ ny+ o./1y a rope which makes an angle of 300 with the horizontal. Which of the following would be closest to t uyc. s3m11/cnkqxoy.x /+qxshe 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 constant speed of 20 m/s as shown in the diagram?

  04.40: A 6.0 kg block initially at rest is y wu/n0n+pjbct c,7p 1pushed against a wall by a 100 N force as shown. Thecoefficient of kinetic ftcpw y,0np 1n /7ubcj+riction 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 horizontal patciw5c hl+96b vjh of grass with a constant speed by applying a forc9wh6 c+jibl5v e 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 force magnitudes, W, f, N, P is CORRECT?

  06.14: A book leans against a crate on a table. Neither is moving. Which ofzv j)jfy.;q3d,vs7 v hs)(gt7csro9m the following statemendojc 9m r)s(hg t7,sz;y3v v)vjfqs 7.ts concerning this situation is CORRECT?

  06.15: A crate of toys remains at rest on a sleigh as the sleigh is pulled up,io. qn.; wwlx a hill with an increasing speed. The crate is nl .i w.o,wxqn;ot fastened down to the sleigh. What force is responsible for the crate’s increase in speedup the hill?