99.36: What happens to the inertia of an object w1/ qv +0eb9hu7qhte bnpt. emk8 nl//phen its velocity is doubled?

  02.14: An intrinsic property of matxxac q9yslj76;msw 9+ter is one that does not depend on the quantity o79m9ssawxl6 ;+c xqy jf matter present. Which of the following properties is NOT an intrinsic property?

  04.16: A 20 kg boulder rests on the surface of the Earth. 1 8xh 1- msetdest2-1ecu7azuAssume the Earth has mad1- 1szmc2tu1eeusx 7e -h8atss $5.98 \times 10^{24} \; kg$ 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 surfacecujmz njs . /vz:z,gxk.pj9 2yyzkxt..( 68 zg of the Earth. What is the magnitude of the gravitational force acting vjzzy/zs (zmk xgj2 ,...tu:y zj x9k8.pgc6n on the earth by the sphere? The Earth mass is $5.98 \times 10^{24} \; kg$ .

  00.09: Is it possible for an object’s9/i , 5dwbjx1dkozwi/ velocity to increase while its acceleration decreasesjzbi1/5, d dw9i/x kwo?

  00.11: A certain particle undergoes erratic motion. At every poinhc/rqu-kwy6u8 )iw a;5bb;i4xrd o ;p t in its motion, the direction of the particle’s momentum is ALWAqi/ bw -5bw4;puc8;)koydh;r r6axi u YS

  17.14: A block is suspended in the air at the end of a string helq.imz:x k+nuj8k0i( e d by a person. The person pulls on the string uniformly accelerating the block upward for a short time. During this time, which one of theeq. i8k:zi ju+nxk (m0 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 following situations is the net for/u f mcdkc/xjuvg1ok3h*yq3-4 x+,d e ce constantly zero on th+jk oxcmf4cuveg3,yd /xk3 h ud /*q-1e object?

  13.28: An object is in free fall close toebh8jj);bo/kqb 8 8b k the ground. A person intervenes 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 stoppq)obk 8 bk;he8b8 jj/bed 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 forcesba*q-q9 7 3)zian/ z+byascrf, F1 of 30 N, F2 of 50 N, and F3 of 70 N, acting on7aycb z/b -izr *fqn3sa+a9)q 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 form a r)1 xmur nfru0dx m)(9;dk5any esuxmr ny d;n) dr9am(f5 uu10)kxltant with a magnitude of which of the following

  10.06: Which of the following statements is most closely associated with Newt2ltc3 mvo )t2fon’s Thirtt2c2l mf v)3od Law of Motion?

  95.06: The reaction force does not cancel the action force/j mw/h 3tezx h hifuc7q7+/:l because:

  14.14: A box rests on the floor of an elevator. Tgxib59k/5 npjwk6c3nhe elevator is accelerating upward. Which one of the followib5pk9/xj5wn kg 3icn6 ng 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 fa;+znaio- y: e-f j7eaills downward through the air with constant speed. Which one of the following choices correctly describes the Newton’s Third Law pair force to the air resistance acting on the skydiver during the faz; iao-yjea e7+i:- fnll?

  06.08: A baseball is thrown by ymaks b1o;)u3+3wan dbuj l*: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 w:3ysjub*1onma;k)d3 lu +a b is always

  11.13: A physics book sits at rest on a table. On top of the book is a calcul gk5;q mgrsa54m *s3mpator, also at rest. Which one of the following choices is the Newton’s Third Law pair force to t sqg5mmpksgr; * 5a43mhe force that the table exerts on the book?

  05.06: The students iy.)/cuqqw)f yn a Physics I class were in lab conducting an experiment related to Newton's Second L/q yw))quc.y faw. 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 doubled while at the same tz(h,-a xw 1h*,alm39 axbr bisime the mass of the object was halved,then the acceleration of the object iai b a, hsb*3ma(wl1,9x-zx rhs

  96.15: A car whose mass is 1500 kg is accelerated)yelze c41b2 oe) * pkza.)ttg uniformly from rest to a speed of 20 m/s in 10s. The magnitude of the ncypt getzel2)4b)za). oe * 1ket force accelerating the car is:

  99.05: A tractor-trailer truck is traveling down the road. The ma9:lak;vm,pofuio ;*sd lyjz59a .d/qss of the trailer is 4 times the mass of the tractor. If the tractor accelerates forward, the force that the trailer applies on the tract5pys m*; k.d q ;z:d jovfal,o/auli99or is

  99.16: Which of the following principles best explains why large tractor-q.( zzkv5n;n rtrailer trucks generally accelerate much more slowly that auzn. qvn;zkr( 5tomobiles?

  99.19: A 50 kilogram skater at rest on a frictionless rink toxa3w.u) im (shrows a 2 kilogram ball, giving the ball a velocity of 10.0 m/s. Which 3u )(saow.mxistatement describes the subsequent motion?

  00.13: An object near the surfaco vp2mw608 5 ljodk/wme of the earth with a weight of 100 newtons is accelerated a8mw2v/wlomj6 5 k 0pdot $4\;m/s^{2}$ . What is the net force on the object?

  98.25: A car whose mass is 1200 kg is accelerated from rest by a constan wlow 1/iiq*eq+a tdz,-)kai4t force o1d*-qqwakw ieoza4,)+/ litif 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/)k mg1v6osjrba-4 x r2s slides across a rough horizontal floor before coming to rest. The frictional force acting on akvxmg jb4-ro s62r)1 the block is 3.0 N. How far does the block slide before coming to rest?

  95.38: A block with -t7;5yk k 7l cvd8kft2q 9zyppinitial velocity 4.0 m/s slides 8.0 m across a rough horizontal floor before coming to rest. The coefficient of friction i5k td9;yz-qkl fv yppt7kc278s:

  09.21: A 20.0 kg box remains at rest one/tt+l e6(dgh a horizontal surface while a person pushes directly to the right on the box with a force oht+ete6g /ld( f 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 accelerf+* dx 55u ce*5nc8ohhvpi lejo f((x+ates uniformly 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 between **ve 5oe (c+x j5oidhhuf5(+lp nfx c8the surface and the block?

  00.21: A car of mass m slides across a patch of ice at a speed v with its b2pm 892yy.yfab dhq0c rakes locked. It then hits dry pavement and skids to a stop in a dmyhp 90.cby fqy2d82a istanced. 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 slides across a patch of ice at arv+ bb kt/;f9:k(sr:b-yb oo2o7jeze 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 btj v brb :-oy(bk;z9r/ +k2 :eoeso7fthe 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 calr5fhacw6x h;e* si4:r makes an emergency stop by slamming on the car's brakes and skidding to a stop. How far would the car have skidded if it had been traveling twice as rh ewfh:54xa 6sic *;lfast?

  99.39: The driver of an automobile must carefully control ea5u/b8zi0 q exjch of the following devices. Which of these devices can cause axi0qu5e8 j /zbn 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 24000 nedc ih3mp/(xq 1wtons. About how much time is needed to increase the rocket ’ speed from 12 m/s to 36 m/s near the surqd/mxchip (1 3face of the Earth at takeoff?

  07.21: A box slides to the right acrq .m-ae.w sx3ag/x5eo oss 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 to5 e./sgx -emaxo a3w.q the right, rank the sizes of these three forces exerted on the box.

  02.27: The diagram below shows three roller coast,jf ;:; byp13zz+nrkrdi7vr k er tracks of equal length. Assume that on all tracks the roller coaster carts start from restky:j; i;3n 1br+7p r,zzd rfkv 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 lengthh. 4 .ts0p9xhe rcqoh9. Assume that on all tracks the roller co.pr x q99s4ht0ec ohh.aster 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 carxy0 +;catajlp .po7eoru0 65gtrolls frictionlessly along the curved track from point A to point C under the influence of gravity. What would be the direction of the cart's acceleration at poicog5pyx6a;uj0l +rtae0p o7. nt

  02.40: A box with a mass of 50 kg is dragged across th ,7zlyffj.*o6 mk;j+6 )9dpabulahf lm4dy. ee floor by a rope which makes an angle of 300 with the horizontal. Which of the following would be closes bk 7+fzlypul 4f9l.d6 ,ejmfyj*a )h a.;o6mdt 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 constant speed of 20 m/s as shown in the diagram?

  04.40: A 6.0 kg block initially at rest is pushed against a wall by a 100 N forc.pj* l2vv5ad wfdv2h*e as shown. Thecoefficient of kinetic friction is 0.30 while the coefficienl. vd5*h 2pvafwvjd *2t 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 ho8 pr7 2gxvo(dirizontal 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 7ipr(g 8vx od2relations 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. 5ybv-y eois(; Which of the following-y(oeiv sb; y5 statements concerning this situation is CORRECT?

  06.15: A crate of toys remains at rest on a sleigh as the sj2r:ia+ i8 apzleigh is pulled up a hip a+8j a:i2zrill with an increasing speed. The crate is not fastened down to the sleigh. What force is responsible for the crate’s increase in speedup the hill?