99.36: What happens to the inertia of g ;-gs rcl( 7zgjkx.*nan object when its velocity is doubled?

  02.14: An intrinsic property of matter is one that does not depend:3f42f4) wsr2lh cycyp 5mn.(r v otey on the quantity of matter present. Which of the following properties is NOT an intrinsic prop5np4fr 2h v)y: sy4wer2tlmcoc( fy .3erty?

  04.16: A 20 kg boulder rests on the surface of the Earth. Assume the Earth hzt edwq01*m 8e m4u1ybas mass 148bdutmyme q0z e *w1 $5.98 \times 10^{24} \; kg$ 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 f zi 0 *zp,vn-vyhrm 5y:o.1dilall near the surface of the Earth. What is the magnitud p-idy*0i:n. ov1y5hzml,zvre 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 increase while3ax:n9 qsbft: its acceleration de93fastxn :b :qcreases?

  00.11: A certain particle undergoes erratic mom8d0zg8 nps7b tion. At every point in its motion,p8 dz8 g7mnsb0 the direction of the particle’s momentum is ALWAYS

  17.14: A block is suspended in the air at the end of a s4n x8 y-/ynbbotring 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 followi-/8nbyn b 4oxyng 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 situat/2dyg+qm87 8j okt jwqions is the net force constantly zero on the ob/+82djm 8g7kyqtqowj ject?

  13.28: An object is in free fall close vme zygh10e-*un .bv.to the ground. A person intervenes and slows the object uniformly to rest. Which one of the following statements must bb zvh .evnum-e0*1y.ge 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 equilibrium has three forces, F1 of 30 N, F2 of 50jeco-hgc zu5, tz .(/v N, and F3 of 70 Nzj ze(cu cg,-ovt h/.5, acting on it. The magnitude of the resultant ofF1 and F2 is

  01.07: A force of 6 Newtons and a force of 10 newton+-9u0vg ut2dzr 2 ;gbexfp nm1s can be combine to form a resultant with a magnitude of which of gdmrg;vt 0u9fu + -e21z2p nbxthe following

  10.06: Which of the follok3ur;,59v8nj tyyw cowing statements is most closely associated with Newton’s Thr,ck ;5jnwy8uot y3v 9ird Law of Motion?

  95.06: The reaction force does not cancel theb ip lpb78bu,43cxgw0 action force because:

  14.14: A box rests on the floor of an eac0b 2rnnm-dg ;d:r (wlevator. The elevator is accelerating upward. Which one of the following choices best represents the Newton’s Third Law pair force to th2dm0nwnrrb g a;: c-d(e gravitational force acting on the box by the Earth?

  15.15: A skydiver falls downward through the air with constant speed. zy e4 kk3jri6) Which one of the following choices correctly describes the Newton’s Third Law pair force to the air resistanceyzkeir 4k j)63 acting on the skydiver during the fall?

  06.08: A baseball is thrown by a pitcher with a speed of 35 mci+a 3vvru.m3/s. The batterswings and hits.avvm r 3u+i3c 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 calgmy 1ahxra8j g 1p8zti )9b,9xculatogh) a bmr19yxzj,1g9ip8at8 x r, also at rest. Which one of the following choices 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 la tn0q+f 1 v)nklo6jez:b conducting an experiment related to Newton's Second Law. The colln1qket f: jvn)0+oz 6lected 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 time sm9+zbwub *vs jw/5.g the mass ofmwu vsj/ +b9w *gz5.sb the object was halved,then the acceleration of the object is

  96.15: A car whose mass is 1500 kg is accelerated uniformly fromo q1b3pdf;; jc rest to a speed of 20 m/s in 10s. The magnitude of t1d cf;pb qo3;jhe net force accelerating the car is:

  99.05: A tractor-trailer , g;sq6q0.fu zppdz4o truck is traveling down the road. The mass of the trailer is 4 times the mass of the tractoupozs; ,. 6pf0qz4dgq r. 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 t3gk :fy6n:t ipractor-trailer trucks generall:3i6nkf:y p tgy accelerate much more slowly that automobiles?

  99.19: A 50 kilogram skater at rest-c*lt75b scnnfc /m8 x on a frictionless rink throws a 2 kilogram ball, giving the ball a velocity of *n5clct87/xfcs b m-n10.0 m/s. Which statement describes the subsequent motion?

  00.13: An object near the surface of the ek ).xbkr*j:l bmp:t ,marth with a weight of 100 newtons is accekl)bt .x:rm pkbj,m: *lerated at $4\;m/s^{2}$ . What is the net force on the object?

  98.25: A car whose mass is 1200 kg is fbh pthrr3 0*/3cq ,nuaccelerated from rest by a constant force of 2400 N. Wharh*0,nbthu f33rq cp /t 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 horitm z(,okv 3no,zontal floor before coming to rest. The frictional force acting ,vz,3 kt m(nooon the block is 3.0 N. How far does the block slide before coming to rest?

  95.38: A block with initial velocity 8zn:ht4 -y8f slo;/lcbuhz6+ 6 bq pby4.0 m/s slides 8.0 m across a rough horizontal floor before coming to rest. The coefficient of friction i4: n/ltb6z8z cysp;hu6+f-l bhyoq b8s:

  09.21: A 20.0 kg box rema 9-m:yiuwma8v+d. vw gins at rest on a horizontal surface while a person pushes directly to the right on the box with a force of 60N. The coefficient of kin 9w-vv ygim8 udwa:+.metic 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 re(ds j9v5w5syma 4 jw0ost on a horizontal surface. The block travels a distance of 12.0 m during the slide. Which one of the followjs5 (w0s9m joadv4y5w ing choices best represents the coefficient of kinetic friction between the surface and the block?

  00.21: A car of mass m slides across a patch of b a5k;/uuf6uih,gj q)ice at a speed v with its brakes locked. It then hits dry pavementqj k/,buuifu) ;h6a5g 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 slides across a patch of ice at a s)2ydg exk;gh/peed v with its brakes locked. It the/) ex hy;dggk2n 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 p:b89 c, xwjcjmu27hq makes an emergency stop by slamming on the car's brakes and skidding to acc8pjxb9mj, q:27 wh u stop. How far would the car have skidded if it had been traveling twice as fast?

  99.39: The driver of an atd. m8i 3i3lj)1jjbdgzw;l ;qutomobile must carefully control each of the following di1z8tl3; jg;3qi )j wm lj.dbdevices. 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 weig m4z n3xu.+j aasr8t2sht of 15000 newtons is 24000 newtons. About how much time x 8rs3m+.j4na tz2uas 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 t.ewgy md+gt: 1o the right across a horizontal floor. A person called Ted exerts a force T to the right on etg:wdg y.m+1the 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 forces exerted on the box.

  02.27: The diagram below shows three roller x8yk15tuko uen+6(si coaster tracks of equal length. Assume that on all trac5 sxk1ie6oyuk(8+unt ks the 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 coastn4kk5d :cg8j aer tracks of equal length. Assume that on all tracks the roller coastern8cgj: k4d5a k 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 cartrolls frictionlessly along the c*tzb 4yjf b9 fhc s;31ubj*cd.urved track from point A to point C under the influen*bfu ;49zyc3*f jbb. hj1sdtc ce of gravity. 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 floox bcl/4 /b :wxp;h iy0k)qq)bor by a rope which makes an angle of 300 with the horizontal. Which of the following would be closest b)p)i/hky;q bcbo4xxwq l: 0/ 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 initiams )3t(t;o9c -rnq 2jch+mho6+y-a e+ kwczzq lly 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 frict-+h o9t mz;rqmwcn-cy(h+jkaszec) t 36 q+ 2oion 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 horizontal patch of grass with wh.cod-o8 v-fa 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 relations among the various f -8.-fcodovhw orce magnitudes, W, f, N, P is CORRECT?

  06.14: A book leans against a crate on a table. Neither is moving. Whi jb4)fr:h kj1sw(ztv5ch of the following statements concernin:hrfj (1v 4zkst) w5jbg this situation is CORRECT?

  06.15: A crate of toys re6ad9.qz0zd9jz vy +snmains 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 the crate’s increase in speed .j9zdsza+ z dynq6v90up the hill?