99.36: What happens to the inertia of an object when its veloce8l x q9fl,j2bsa v*(city is doubled?

  02.14: An intrinsic property of matter is one that does not depend on the m*sv3-c tt9eu quantity of matter present. Which of the fol9umve t-t*c s3lowing properties is NOT an intrinsic property?

  04.16: A 20 kg boulder rests on the surface of1og x83duvj2. 4cqdqs the Earth. Assume the Earth has mass 4x2ugc.8djv 1qqd3so $5.98 \times 10^{24} \; kg$ 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 ingbv j:60c/qa z1 3acksr8t v3k)og-br free fall near the surface of the Earth. What is the magnitudc) zvqb0kg /3rvrb13g68s tkja co: a-e of the gravitational 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 in x;wguoh ryhr4nv .r .r00 )e1uzab1;ncrease while its acceleration decreas41z;rarhy un;ue0 r).gnw0v1r h.o bxes?

  00.11: A certain particle undergoes erratic motion. At every point in its m * idwm;k/g1b)h.hro/;qmlr votion, the direction of the particle’hq)lg*h r;mok/1.v iw;m d b/rs momentum is ALWAYS

  17.14: A block is suspended in the air at the end of a5odbo6 )r +rev/dlv 3d 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 correctly identifies the Newtondvo ed+o d) 3lr6rbv/5’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 h5hw j6;ita-d xg92eb force constantly zero on the obje 9hhaj5x gb-id6 e2w;tct?

  13.28: An object is in free f , ui ht2z8dej,f1zhs1m6l7g vall close to 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 am h6vt ,hfidgzs 8l1e,7uzj21s 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, F2 of 50 N,a41vyzq h.q2 x and F3 of 70 N, acting on it. The magnitude2v1 haqxqy4z. of the resultant ofF1 and F2 is

  01.07: A force of 6 Newtons and a foc *;y/r3vj4 yj6 pdpqtrce of 10 newtons can be combine to form a resultant with a magnitude of which of the fol34*/yj6; trp y dvjqcplowing

  10.06: Which of the following statements is most closely associated wio xx74)t(*1pxq/sukc rct 49w m wzq7eth Newton’s Third Law of Motion)1w*k qxz cr mxt9o4/7equp4tcs wx 7(?

  95.06: The reaction force does not cancel the actio v07s2h.pmp0q egoz8fn force because:

  14.14: A box rests on the floor of an elevator. The elev30zvt 3huo5f :s*chp 3dv1gl ug. :7okxsh m/cator is accelerating upward. Which one of the following choices best represents the Newton’s Third Law pair force to the gravitational force acting on the /10g:lhs3vuofh7u z3 cv kmho3 ct.g:x ds5p*box by the Earth?

  15.15: A skydiver falls downward through the air with constantbkotv 8xbc d +nm)1m4, speed. Which one of the following choices correctly describes the Newton’s Third Law pair force to the aib8,m4b mdk1xn+o vt c)r resistance acting on the skydiver during the fall?

  06.08: A baseball is thrown by a pitcher with a speed of 35 m/s. Tmbc2m06y lra)ek+ v3z he batterswings and hits the ball. The magnitude of the force+k30zm mcve2 )6rlyba that the ball exerts on the bat is always

  11.13: A physics book sit:x: fy)cc0g dhj2o 1rqs at rest on a table. On top of the book is a calculator, also at rest. Which one of the following choices is the Newton’s Third Law pair force to the force that txjofgh2)y :q:dcr0 c1he table exerts on the book?

  05.06: The students in a Physics I class were in lab conducting,fto:k)rm dmh0mi)f 2 an experiment related to Newton's Second Law. The collected data were disd m :f2i)fr0mtmohk,)played 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 d7lnp 9)e/sc t+gv08b r6 nndb8nnoc 0foubled while at the same time the mass of ot68709 er/ngcs 8 lnd+nn f0)pbcvnbthe object was halved,then the acceleration of the object is

  96.15: A car whose mass is 1500 kg is accel*d.t 3/w zqx dljxu,s*erated uniformly from rest to a speed of 20 m/s in 10s. The magnitude of thex*txds/3dz.l ,w*ujq net force accelerating the car is:

  99.05: A tractor-trailer truck is traveling do3r,px/j wd2o8g yh 1jgwn the road. The mass of the trailer is 4 times the mass of the tractor. If the tractor accelerates forward, the force that the trailxg3wr21 /d, gojphy8jer applies on the tractor is

  99.16: Which of the following principles best explains why large tractor:,kkg-pg7 pr*rtt5 3p m* iun yywe,7j-trailer trucks generally accelerate much:y3 5 -n7kp*jp,rwyt gekprim,gtu7* more slowly that automobiles?

  99.19: A 50 kilogram skater at rest on a frictionlzig, rr3 6oy8mfzs jxn+ yxb6e(5,ke/ess rink throws a 2 kilogram ball, giving the ball a vn/i6xbk3,gs8 f+ezr,yx 6j 5y zor(emelocity of 10.0 m/s. Which statement describes the subsequent motion?

  00.13: An object near the surface of the earth with a weight of 100 newton mgmyd6mz3 e1numy0/3 s is acceleratedy zmeg1/d n3y03um6mm 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 const y2h.l5hprr+qll m),e ant force ofr,lqh2 5h y.p)r lmel+ 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 acro7moc ryu:5d x4ss a rough horizontal floor before c45u:yox cm7d roming to rest. 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 initial velocity 4.0 m/s slides 8.0 m across /kdqaqhs zo:d0h* x;uy - 2.lma rough horizontal floor before 0:*k/sd2mhxqly qd- z .;uho acoming to rest. The coefficient of friction is:

  09.21: A 20.0 kg box remains at re;bhn *ktgs7 bxy)7: h( (uvl egly.(xust on a horizontal surface while a person pushes directly to the right on the box bg;)t(xlh (b.yu ( u7:vgln *kxeh7sywith 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 uniformly to rest on a hob5b8 u4e0nj ae7 ho+fzrizontal 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 the surfab 7zn8o ubj+h4e5efa0ce and the block?

  00.21: A car of mass m slides across aa xybc(y*onykd8zc6ug 7ndi+z +s1 // 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 kinetic friction beyz nc a g/+1nd78zbuc*yiys(k / xod+6tween 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 speed v withf p,xgunc6xb(njxl8.p9 ictm9 +f6;h its brakesmx6 t, ncxffj +hublg8p9c9xp.n;( 6i 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 .

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 slamming on t:w ogzkk b.w)50qh1sl he car's brakes and skidding to a sq)h bl: oz.5 skgwwk01top. How far would the car have skidded if it had been traveling twice as fast?

  99.39: The driver of an automobile must carefully control each xvs-yo1ooms3aj)r ru7k68f t ;b:/hoof the following devi3krmx/) ;vb: fuyoahjo8o6 o ss-1 rt7ces. Which of these devices 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 with a weight of 15000 newtons is 240m yl+egsq)s+x4 rj:392k pm wy00 newtons. About how much time is needed to increase the rocket ’ speed from 12 m/s +gm yjwxr9e4)2 ksymspq :3l+ to 36 m/s near the surface of the Earth at takeoff?

  07.21: A box slides to the right across a horizontal floor. At9y owz7ak07b lldd7 4 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. G7d4 wy 7kl7 atbo9z0ldiven 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 ul,6 e*vd)65ge8y/ ckh6f n a0e n qywxwpl8b.coaster tracks of equal length. Assume that on all tracks the roller coaster carts h b56l/kn uc *) l8a,p0 qydyv8f6.wnw6 egxeestart 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 be traveling the fastest at the finish?

  02.28: The diagram below shows three roller coaster track g /eyf7 uc f6ijd-ytkq1,s:q6s of equal length. Assume that on all tracks the roller coaster ca i7 ,gfq/skfc-yeujy:6d 61tqrts 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 cu843tusljmb y fn+0j4 trved track from point A to point C under the influence of gravity. What would be the ditulj 4fm0b+s 4j3ytn8rection of the cart's acceleration at point

  02.40: A box with a mass ofa 1ec:jr cgzof*k;on7 0(j m)3ju9zl i 50 kg is dragged 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 the rope is required to move the crate at a constant speed of 20 m/s as shown in the dia(zjzc; jc :fk0oaim1 *jur7) ng e9o3lgram?

  04.40: A 6.0 kg block initially1ek ot6iss /b o/(q3+b /tcvml 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 slob1 +o/ 6/k3/is btecq(v mtfriction acting on the block after a time of 1 second?

  05.10: A homeowner pushes b6n6z nyickkg /34*w la lawn mower 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 /z4ck *in6wl6 bkngy3on 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 2rcezd 6*2vneof the following sta6ze2 *rne vcd2tements concerning this situation is CORRECT?

  06.15: A crate of toys remains at rest obs6 puw,-ce 8e )-gqgfn a sleigh as the sleigh is pulled up a hill with an incrgbu8gw,6) ec -feqps-easing speed. The crate is not fastened down to the sleigh. What force is responsible for the crate’s increase in speedup the hill?