99.36: What happens to the inertia of an object when its velocity is do:)1le k 7rygxdubled?

  02.14: An intrinsic proper9 v(axsh+hsg h:i5es8 ty of matter is one that does not depend on the quantity of matter present. Which oh +:s5e s9 (shxivgha8f the following properties is NOT an intrinsic property?

  04.16: A 20 kg boulder rests on the surfujetl.xx69u,+ s nh8 i2rsg;aace of the Earth. Assume the Earth has mass axrg;2lthuxu s ji,n6+s. 8e9 $5.98 \times 10^{24} \; kg$ 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 isd47cgn u5u.nfh *32 y 61p cooxpfp*iq the magnitude of the gravitatyd3gic51.hxp2 c4nq*7p f 6onopf u*u ional 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 while its acceleratifguou 1v, 0:ixon decreasv0ig1fx,u: oues?

  00.11: A certain particle undergoes erratic motiondpyx,qg .sjtd:w do9 z(()us;. At every point in its motion, the dire sz(dsq,t)gop(d d w9y:u;.jxction of the particle’s momentum is ALWAYS

  17.14: A block is suspended in ya f2mhr99 s/c3w mua)the air at the end 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 ccsw 3m hm9rayafu29) /orrectly identifies the Newton’s Third Law pair force to the force of the string on the block?

  07.18: In which one ocvk de.l5wyr 27ee73zrn* fk,f the following situations is the net force constantly zero on the object?kf 3wryc,r . 5 lzn27edk*7vee

  13.28: An object is in free fall close to the ground. A person intervet0:hlzm x3o/;se+ ;11lza uof) pet-ot v-roines 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 th utt zh)l-rfx ot1zo3v-+/eio 1 ;p m;s:eaol0e magnitude of the acceleration from gravity is g.

  98.03: An object in equilibrium has three forces, F1 of 30 N, F2 of 50 u xmuh78f64hjN, and F3 of 70 N, acting on it. The magnitude of the resultant ofF1 and F2 is7hj 48hu f6xmu

  01.07: A force of 6 Newtons and l. vvr 2+rfycz xu wdl,y/*)1ta force of 10 newtons can be combine to form a resultant with a magnitude of which of the folxwdcl f* lzuvy)1rry/.v , 2+tlowing

  10.06: Which of the following statementsl sv,7x+ tpstsa i0dy w:e9,7t is most closely associated with Newton’s Third Law of Motiotspl+7ttyi s :7aw dxvs0,,e9 n?

  95.06: The reaction fogkf mqg6y8; 6prce does not cancel the action force because:

  14.14: A box rests on the floor of an elevator. The elevator is accele,alin8d hn ;m./2mi k.5ezd qirating upward. Which one of the following choices best represents the Newton’s Third Law pair force to the gravitational fi2n5q i.;ld8 zkdmi eh,.man/orce acting on the box by the Earth?

  15.15: A skydiver falls downward through the air with constantk, y;-vg 54cxecbki+v speed. Which one of the following choices correctly describes the Newton’s Third Law pair force to the air resistance acti5,xiv +kyc4ckgv-eb ; ng on the skydiver during the fall?

  06.08: A baseball is thrown by a pitcher with a speedw3vzb4ttc q 5y6f0x -p of 35 m/s. The batterswings and hits the ball. The magnitude 5y bzt- v6xc 0p4twf3qof the force that the ball exerts on the bat is always

  11.13: A physics book sits at rest on a table. On top of thet3jky 1iqi3h v()ar uo n7r(xkf6jtfho,y,5 7 book is a calculator, also at rest. Which one of the following choicekiv yua(5tft 7(r13nkj 7, qoyh63j hrixof),s 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 conductini 5)ucb sdi1 3gdt5v;sg an experiment related to Newton's Second Law. The collected data were displayed on the graph at the right. From this graph, t3bd )cs15sg5 ;i uvdiwhat conclusions can the students make?

  99.03: If the net force on an object pw.,mnb2 rcd 4were doubled while at the same time the mass of the object was halved,then the acceleration of the obnwm c24rp.d b,ject is

  96.15: A car whose mass is 1500 kg is accelera5 :i-r7 yrq.eix3pp yfutj6 (xted uniformly from rest to a speed of 20 m/s in 10s. The magnitude of the net fo(uf y-pijrtx :r.q7i3x56yp erce accelerating the car is:

  99.05: A tractor-trailer5 vw/wgnpl*ncp/gki5ru , s6: truck is traveling down the road. The mass of the trailer isn6/p*ws pk5i:gr5w/vu, l ncg 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 large 1fr:plvt9om 3/s/j:7dkmtt- wi ) duntractor-trailer truck /wdj:pim kd v f1s3)u :tt9r7nl/t-oms generally accelerate much more slowly that automobiles?

  99.19: A 50 kilogram skater at rest on a frictionless rink throws a 2 kilogd5bysk) v0x103n m b)d5uu zqys;0zy aram balmdv)sqxz0 sy 0zb 5yn0 ;a53d)yukub1l, giving the ball a velocity of 10.0 m/s. Which statement describes the subsequent motion?

  00.13: An object near the surface ofl)f 7 lf-8o i 0qktt41lj8+swvd8x5aaq - haih the earth with a weight of 100 newtons is accelera85xh)svq w+qfllit-8ia tahj d4-oa08 f17 lkted 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 by a constant forcef wpsdm1)d(8y opsw(8fym1dd ) f 2400 N. What 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 horizontak tc0 e)golhs( n)bd00l floor before coming to rest. The frictional force acting on the block is 3.0 N. How far does the block slide beforohkec( g )n0ds)l0b 0te coming to rest?

  95.38: A block with initial velocity 4.0 m/s slides 8.0 m acrolh imvf( jlfsbtsgs :/7)d71,ss a rough horizontal floor before coming to rest. The coefficient of friction isvfj7:t1 hm s) i sd(7g/sl,flb:

  09.21: A 20.0 kg box remain kx*3yq6 obg2es at rest on a horizontal surface while a person pushkq6 x32ygo* ebes directly to the right 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 moving6z*drl inx0/ a6px1qt at 8 m/s accelerates uniformly to rest on a horizontal surface. The block tr6t xrn 1qx/i0l zad6p*avels a distance 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 slid 76ejkujg3l(vls if,fk/7 (wees across a patch of ice at a speed v with its brakes locked. It then hits dry3k lwjf(klev ,s f7ugj6ie(/ 7 pavement and skids to a stop 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 slid6 x)q):puwwlf es 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 distanced. The coefficient of kil pw6u:x q)w)fnetic 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 sllbr 6j6-kz*fyku3o xr)q6v o.z+mzp 5amming on the car's brakes and skidding to a stop. How far would the car have skidded if it had been traveling twice as fo).uryl*xp oj zbz6 vq+-z63m6r5kfk ast?

  99.39: The driver of an automobile muv -n)lm *oj2d j4g3suvst carefully control each of the following devices. Which of these devices can causs)mv2gnj u- v3dj*o 4le 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 r7 vkbfn+y0 b.xq to:s5h: /eugocket with a weight of 15000 newtons is 24000 newtons07bvt bxoh/:+q e sg.k:ufy5n. About 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 rsmwns74 7jhjxujt7e2 8kgx af3 (o49right 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 and the box accelerates to the right, rank the sizes of these three jm2o(48s 4x7jjgn3x ashkr79w ue7tf forces exerted on the box.

  02.27: The diagram bent(f)20iz7 n rdz+xvnlw 2mpg3oiy+bk;a )9elow shows three roller coaster tracks of equal length. Assume that on all tracks the roller coaster carts start from rest at the same elevation and move3 )nr + )b702mx 2zi+wli(9f;ovktenanpydz gs 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 shoefjtzk kn. 800)zc8l m ,zkuf*ws three roller coaster tracks of equal length. Assume that on all tracks the roller coaster carts start from rest at the same elevation and moves frictionlesslyn., fu* 80cm0jkl)zzz ftke k8 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 curq s8k yrlba 3//r-r:jp)l mb2pved track from point A to point C under the influence of gravity. What would be the direction a3mq8r:pr2l lrj)b-sp/ kyb / of the cart's acceleration at point

  02.40: A box with a mass of 50 kg is dragged across5bk-4( idhkq56 cdqrsw(hp.,g p9zy k 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 kinetich-4 yrd5gq sk 5k ,cwk(p.hzipd(q9 6b 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 ato.wp-y4 yklw 0 rest is pushed against a wall by a 100 N force as shown. Thecoefficient of kinetic friction is 0.30wk y4w.-0l opy 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 moqs+i 6.7o mhghz 0(erbwer 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 the lawn mower. Which of the following q+(z bri .6gh7msohe0relations among the various force magnitudes, W, f, N, P is CORRECT?

  06.14: A book leans against a crate on a table. Neithex p5o3g1xgv3mzjff6 2r is moving. Which of the following statements concerningf 2 1zv3p35m6xogfxj g this situation is CORRECT?

  06.15: A crate of toys remains at restngw4cou6h3 p+ 8gq*wc vomxqd( 51lx4 on a sleigh as the sleigh is pulled up a hill with an increasing speed. The crate is not fastened down to the sleigh. Wha4dmc4 8pxg 5v owow qxncu3lh*6(q1+ gt force is responsible for the crate’s increase in speedup the hill?