99.36: What happens to the inertia of an object when its velocity is doubo iqpmpf*yckc 1tfj1q0p x8 z;* 3w9.pled?

  02.14: An intrinsic property of matter is one that does not depend on thvbma9 zx5 :e(we quantity of matter present. Which of the folw a9x5v :bmez(lowing properties is NOT an intrinsic property?

  04.16: A 20 kg boulder rests on the surface of the Earth. k*p24npf 1jtr Assume the Earth has masnfp 4k*pr21jt s $5.98 \times 10^{24} \; kg$ 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 sur1g 0qvj6gfruwn4 u/w ma3qj-/face of the Earth. What is the magnitude of the gravitational force acting on the earth by the sphere? The Earth mass is q gjwu/3nvuj 1rq-0wf/4a6gm$5.98 \times 10^{24} \; kg$ .

  00.09: Is it possible for an object’s velocity to increase while -.ya w8 wp,mzo(l;ft qits acceleration. (qtl,-y8wp ;mofwza decreases?

  00.11: A certain particle undergoes erratic motion. At every point in:z zjj dj6j+eog1 l4,u its motion, the direction of the particle’s momentg:j jod j1,6zj4l zu+eum is ALWAYS

  17.14: A block is suspended in the air at the end buhu nb+0l6.i of a string held by a person. The person pulls on the string uniformly acceleb inu+6uhb0l .rating 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 the force of the string on the block?

  07.18: In which one of the following sit5x5m3t hjutm7uations is the net force constantly zero on the objet h53jtmxm75uct?

  13.28: An object is in free fall close to the ground. A person interv dmiamf52 2fhdnwk5 0lg*x9n4enes and slows t lf5mn 9km fd 522hn4ad0xg*iwhe 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 magnitude of the acceleration from gravity is g.

  98.03: An object in /b*eh eg o;cm:equilibrium has three forces, F1 of 30 N, F2 of 50 N, and F3 of 70 N, acting on it go:be*hm; ec/. The magnitude of the resultant ofF1 and F2 is

  01.07: A force of 6 Newtons and a force i um c; xxvk6iiih)zl,p7 3.m+of 10 newtons can be combine to form a resultant with a magnitudex;k mzhxiiim,v7+ p cul 3.i6) of which of the following

  10.06: Which of the following statements is most b71rm * 2lnlsels;) fc;sqt h/closely associated with Newton’s Third Law ofq/rtn2cbl; ; 1sls)fl*mhs e7 Motion?

  95.06: The reaction force does s,eb:xy;xvds 1o5 p7 mnot cancel the action force because:

  14.14: A box rests on the floor of an elevator. The el5hmx a 9.luhu5qs2egt/cb 2t5evator is accelerating upward. Which one of the following choices best represents the Newton’s Third Law pair force to the gravit2hbhs.52ec9utam g5u5x/ltq ational force acting on the box by the Earth?

  15.15: A skydiver falls downward through the air with coddn . +up94uypi :9fhdnstant speed. Which one of the fol.n 9ph:udd y49+fdiuplowing 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:g3 t yxsl xi086drx,j:xiaih/0 tgx- thrown by a pitcher with a speed of 35 m/s. The batterswings and hgxi-0x/rgj,x:hs6 x:t8iy 3taix ld0 its the 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. On top of the book is a o4u wu-pdhyrqra.z2 w9p* 81/ vn:hkzcalculator, also at rest. Which one of the following choices is the Newton’s Third Law pair force to the force that the h.-a h1vwrz2dn8qprupy/zw o9k :u4* table exerts on the book?

  05.06: The students in a Physics I class were in lab condsg: yft 4fbc5hi 5w j2;w+fbl0ucting an experiment related to Newton's Second Law. The collected data were displayed on the graph at the b f5yj f tbfw20:+ 5silc;whg4right. From this graph, what conclusions can the students make?

  99.03: If the net force on an object were doubled while ahyye63bku w ,+9- wvqft the same time the mass of the object was halved,then the acf yq-kbe,vh yw3u+9w6 celeration of the object is

  96.15: A car whose mass is 1500 kg is acfv1u5hwg qyde6 )/h:rcelerated uniformly from rest to a speed of 20 m/ fv y:6/dhhqgr ewu51)s in 10s. The magnitude of the net force accelerating the car is:

  99.05: A tractor-trailer truck is travd: mynp 948oaieling down the 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 9np:4m8ia oydon the tractor is

  99.16: Which of the following prn,3nuno1 5z+th ori 6cinciples best explains why large tractor-trailer h ocnn5rn3io, u61zt+trucks generally accelerate much more slowly that automobiles?

  99.19: A 50 kilogram skater at rest on a frictionless rink throws a 2 kild 90n gnpjv5v)ogram ball, giving the ball a velocity of 10.0 m/s. Which statement describengvjd509 )n pvs the subsequent motion?

  00.13: An object near the surface of the earth with a weigm(jfq fqo;rm /v5bk*4j/di/ d ht of 100 newtons is acceleratedm(//kqd 5jqi vdjo;/f4bm* r f 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 constantc:s4wqyiz;4d3kb)n e5)ogfq ,+f v3k7xmslx force of 2400 N. What is the speed of the car 8.0 s after v x :fn4zcl5+7sqwmdioqb ;4x ,)3fke sy)g3k beginning?

  98.32: A 3.0-kg block with initial speed 4.0 m/s slides acrossl8v)*0 cf ;rzia db-kv a rough horizontal floor before coming to refz8 ivcv;-* 0rdkal)b st. 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 82qa rt vc* 3zpjv,x*hh0 sdi0initial velocity 4.0 m/s slides 8.0 m across a rough horizontal floor before coming to rest. The coeffi q,h2*ivtr0d8cvap xjz s* h03cient of friction is:

  09.21: A 20.0 kg box remains at rest on a horvk .7 h1zh93fzl4lrkdwj 22qa izontal surface while a person pushes directly to the right on the box with a force of 60N. The coefficient of kinetic friction between the box and the surfacef1vz 4khrk2l2wz9jd ha q7.l3 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 unifo69a8f. lb2 xqv xvfp7g;k u (9 8xha*v5fubnxcrmly to rest on a horizontal surface. The block travels a distance of 12.0 m during the slide. Whi98v(;uxvv7b*c9. fxauhbxkl fng5 xa8p26 f qch one of the following choices best represents the coefficient of kinetic friction between the surface and the block?

  00.21: A car of mass bf9)9n1 je qddm slides across a patch of ice at a speed v with its brakes locked. It then hits dry pavement and skdfqj bed9)9n1ids 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 slides across a patch of ice at a speed6r n r:s7s+mjf 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 the dry road is μ .rr6n :7sfs+mj

If the car had a speed of 2v, it would have skidded a distance of

  04.32: he driver of a car 5( nwr962n i sj yo1uie1nt2lnmakes an emergency stop by slamming on the car's brakes s1nnor1ew2ui9nn 5l j2 6yt(iand skidding 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 must 7 mocn3y jllqoicoeaz67)c -( -axw :0carefully control each of the following devices. Which of these devices can cause an acceleratio76e)mc(yi-oo-cx nqc:a lzl0ja w o7 3n 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 weiga+mkq*w;- jjx10a tni ht of 15000 newtons is 24000 newtons. About how much time is needed to akin -t0a +;*qm1jxw jincrease 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 floor. A person calim4i:aq2 rzg, led 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 thatm:i a,4z r2giq 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 rollek+(oa) fhxs*ad+um ( gr coaster 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 trackkfd ua (maxo+*gs(h+) s 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 sk)squ /u ;h3 .cnvaxclq/y)t+hows three roller coaster tracks of equal length. Assume that on all tracks the roller coasty;)aq.3 nx+sktqlu//h vcu c)er 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 rollerc du)jsf( )9makoaster cartrolls frictionlessly along the curved track from point A to point C under the influence of gravityu( )fajsd9 )km. What would be the direction of the cart's acceleration at point

  02.40: A box with a mass of 50 kg is dragged across the ffs6aizub zad (my h8q(eg07)(loor 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 t 07 (8(gz6qa)msyh (zbfuiea dhe crate at a constant speed of 20 m/s as shown in the diagram?

  04.40: A 6.0 kg block inq2a.q9w,l7cxxzhn ,z itially at 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 tim7 lxxqwqzn 9,zhc2a. ,e of 1 second?

  05.10: A homeowner pushes a lawn mower acros wagm(nl.0y7imv ) tc5i,th 3bs 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 r ta 7wtvy5 i (0hnm.,mbil)gc3elations among the various force magnitudes, W, f, N, P is CORRECT?

  06.14: A book leans against a crate on a table. Neither is mv l(8g nlhe:royt5r 7m(6h r s(8zrar;oving. Which of the following statements concerning this situation is CORo6( (yz5ragr rl:8vtr (hhs8nr 7;elmRECT?

  06.15: A crate of toysk4 ux-quiy 04qd :e4es remains at rest on a sleigh as the sleigh is pulled up a hill with an increasing speed. The crate is not fastened down to the sleigh. What force is responsible for t ediu-qk4s q x4eu0y4:he crate’s increase in speedup the hill?