99.36: What happens to the inertia of an object when its vuj1di3 *,gyd; ha 0ymxelocity is doubled?

  02.14: An intrinsic property of matter is one that does /3 meljobw092w;lwfb9 rbd:y1d nw8rgj k 97v not depend on the quantity of matter present. Which of the following properties is NOT an i0lw2b owj9vd b3w y fkgm r:8r/;jew97 19nbldntrinsic property?

  04.16: A 20 kg boulder rests on the surface of the Earth. Assume the Earthl.r:tbk mp6lz24i- q w has maslbi.r42 -kz ptlw:m q6s $5.98 \times 10^{24} \; kg$ 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 is th/hhv lpm26i(4o 3f mqne magnitude of the gravitational force acting on the earth by the sphere? The E(ip36fmhnl/ mv 4oq2 harth mass is $5.98 \times 10^{24} \; kg$ .

  00.09: Is it possible for an object’s velocity to increase whi4ri+:8q mr sgxle its acceleration decreasgx8m+r si r:q4es?

  00.11: A certain particle undergoes erratic motion. At every point in in)x69:cu+- 1 tfzylk d9;qnin z ew5fpts motion, the direction of the pareynu;nq59p :t1k d z+z-l xn96icwf)fticle’s momentum is ALWAYS

  17.14: A block is suspended in the air at the end of a q-/,l/akmcu- at fwp 3string 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 la- 3k ap,/ft/cq-umw Law pair force to the force of the string on the block?

  07.18: In which one of the following situatio+g 0x:gz zw x7:hi9lzmns is the net force constantly zero on thx zwxh:mg+i9z7: g0lz e object?

  13.28: An object is in free fall cw:v/is4x z-molose 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 as it is being stopped by the person? The magnitude of the object’s acceleration is a and the magnito-z mwxi/ 4sv:ude of the acceleration from gravity is g.

  98.03: An object in equilibrium has three forces, F3a /b6nbp xtt*1 of 30 N, F2 of 50 N, and F3 of 70 N, acting on it. The magnituxbtan3t*p6 b /de of the resultant ofF1 and F2 is

  01.07: A force of 6 Newtons and a 70xuj3it k6hw7 8o r4uzj.aglforce of 10 newtons can be combine to form a resultant with a magn3a g6l7u.wtxjh804k 7 j izruoitude of which of the following

  10.06: Which of the following statements is most clo b6 8zx4 qiv:l/kmd:oesely associated with Newton’s Third Law mkdxlz 8/eo:i b:q 64vof Motion?

  95.06: The reaction force does not cancel the actiom.qp k4-5a2*z xk pwacn force because:

  14.14: A box rests on the floor of an elevator. The elevator is accelerating up,r2 tyhb, e+ 8pkrq;pwwardbwqt2p8 h,+rypre, k ;. Which one of the following 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 downwa8m q l,9x sqmio7bpx+t)()dy37s3nsb0sbr x ord through the air with constant speed. Which one of the follow7txxq37 )bq,bysr+lnsm3 b (s8 0m)x sodo 9iping 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 thrown byvq.q c f.b3 w7ikc7u4l a pitcher with a speed of 35 m/s. The batterswings and hits the ball. The magnitude of the force that the ball exertiwfbc.qv q47 .37kc lus on the bat is always

  11.13: A physics book sits at rest on a table. On top of the book is a c8as*++j6a t yh0tjze4a7ix k4pl-g xafoqo)3alculator, also at rest. Which one of the following choices is the Newton’s Third Law pair force to the force that the tablj6pf a4+g4eq7thks) xt 80azj *-iaya3x+oo le exerts on the book?

  05.06: The students in a Physics I class were 6 z2j/k h5i1ngi3 0md9leshlbin lab conducting an experiment related to Newton's Second Law. The collected data were displayed on the graph at the right. From this graph, what concl2nb15 e imk3lhhs/djz9 gl0i6 usions can the students make?

  99.03: If the net force on an object were doubled while at the j.e:tl d2 yr.ysame time the mass of the object was halved,then the acceleration of the object ir.j:lyd 2ey .ts

  96.15: A car whose mass is 1500 kg is accelerated uniformly from re75*/xh xuld fjox;6p pst to a speed of 20 m/s in 10 x;h6*xdp/7lf5 xojp us. The magnitude of the net force accelerating the car is:

  99.05: A tractor-trailer truck is traveling down the road.m:vey*ecueheft (8 0,o27 ymc The mass of the trailer is 4 times the mass of the tractor. If the tractor acceleratese:8yce,e7 v mc yfe t0(*2mhou forward, the force that the trailer applies on the tractor is

  99.16: Which of the following princ d )ra8ly ys/3inku4;oiples best explains why large tractor-trailer trucks generally accelerate much more slowly that a)sdkla ri;43 uon y8/yutomobiles?

  99.19: A 50 kilogram skater at rest on a frictionless rink up4t yzw5tg4 4d x*.zmthrows a 2 kilogram ball, giving the ball a velocity of 10.0 m/s. Which4gwpz4yt4m u.* d5t zx statement describes the subsequent motion?

  00.13: An object near the surface of the e( 9czov12it faarth with a weight of 100 newtons is acceleratet9c v(zfa2i1od at $4\;m/s^{2}$ . What is the net force on the object?

  98.25: A car whose mass2w 0u)fds+zn vkcrdi ,4l1jh* is 1200 kg is accelerated from rest by a constant force of 2400 N. What is the speed of the car 8.0 s after vf u cird0*l4)h,sw2zjn +k1dbeginning?

  98.32: A 3.0-kg block with initial speed 4.0 m/s slides across a rou*) (pm/rwi4prud9m mi/gtxm(gh horizontal floor before coming to rest. Their(m/( imrgw*x mp49)u /mt pd 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 a rouhj/5phzr3u87 3 gcmif4eo*kwgh horizontal floor behem8533uwck*f7zhgp j i/or 4 fore coming to rest. The coefficient of friction is:

  09.21: A 20.0 kg box remains at rest on a horizontal surface whileo5aj 8q.e.v6y ef05tuxc wdj8 a person pushes directly to the right on tju 8oy jxcqfw8..0 v5 edae56the 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 .b-tok n) 7qar.xsi.q8 m/s accelerates uniformly to rest on a horizontal surface. Thqq .s n-.abkio 7t.rx)e 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 surface and the block?

  00.21: A car of mass m slides acrosy(fi +t 5jixk 1gy0) h3ozu2 fevi;f+bs a patch of ice at a speed v with its brakes locked. It then hits dry pavement and skids to 2ifvt+z0gyfhk3i ( j1;ubex ) o5f+ iya 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 speed v wzz rng;l,4e on* /0yyzkvz8 ype;7lw4ith its brakes locked. It then hits dry pavement and skids to a stop in a distanced/k 4 zv4zyzwy,l; el87p;egz*nny0ro . 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 o63wrgbtv in2;tn 9l 4c)a.qyen the car's brakes and skidding to a stop. How far would the car have skidded if it had been traveling wngc4i2bq 3 t 6e.ntly9rva;) twice as fast?

  99.39: The driver of an automobile must carefully control each of the follo)5uxb+ dmexz9 wing devices. Which of these devib u) zexxmd9+5ces can cause an acceleration in a moving car?
(1) the break pedal ( 2) the gas pedal ( 3) the steering wheel

  00.25: The net forceci (x;g fy8gcta-, -4v4w(zcz f pjv+o on a rocket with a weight of 15000 newtons is 24000 newtons. About how much time is needed to increase the rocket ’ speed from 12 m/s to 36 m/s near the surface of the g-+4;czpwfx84 cfj( ytv,io -czav ( gEarth at takeoff?

  07.21: A box slides to the right -i ge4n7 xicl3across 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 rncglxi 37e4- iight, rank the sizes of these three forces exerted on the box.

  02.27: The diagram below shows three roller coaster tracks b;mdk :1*mzns of equal length. Assume that on all tracks thd *1z:;kbn smme roller 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 be traveling the fastest at the finish?

  02.28: The diagram below shows three roller coaster tracks of equ6u8n/uh5t hpn al length. Assume that on all tracks the roller coaster carnp/u 5 nh8th6uts 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 alongh;g 0 j( 7uf36c 2myhhenh3qxa the curved track from point A to point C under the influence of gravity. What would be the direction of the carhq yfumge6hahn7c2 jx;0h (33t's acceleration at point

  02.40: A box with a mass of 50 kg is dragged across tl0 xn87d;s+,a4r mgau(aezxq he 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 th0(gr xe48uanxqam,;zl +d 7sae 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 fohl eem r- ,eg-uz/w1 a762dc vble6fu4rce as shown. Thecoefficient of kinetic fri- zmc7a4e w-re gu,ldfbevl 1662u/ hection 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 horizont(v25)ivxx j x-cnqhr:al 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 for h(ivxqv2- c)x5 :njxllowing 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 oa3xkbl9 ;qrw /f the following statements concerning this situation is CORRECTx39r l/bqwak; ?

  06.15: A crate of toys remains at ref6*cfp u30gqqst on a sleigh as the sleigh is pulled up a hill with an increasing speed. The crate is not fastened d3* qucqp f0fg6own to the sleigh. What force is responsible for the crate’s increase in speedup the hill?