99.36: What happens to the inertia of an o x p)m)(vhly9pbject when its velocity is doubled?

  02.14: An intrinsic 5 a3rq jsdro;ddk.d+)property of matter is one that does not depend on the quantity of matter present. Which of the fo 3k;.sdjr)a+5rqdd dollowing properties is NOT an intrinsic property?

  04.16: A 20 kg boulder rests on the surface oh w* lc::-y :p4r8 yggi2fptgf yug:3jf the Earth. Assume the Earth has mass :yt:c yu -fgh3g g jp8fiwg ::2y4l*rp $5.98 \times 10^{24} \; kg$ 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 8qwh7u95ep eb free fall near the surface of the Earth. What is the magnitude of the gravheubq8 957e wpitational 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 objechoe0tm c:wt0/a 2*ouet’s velocity to increase while its accelerationat*c o um:2h0oe0w e/t decreases?

  00.11: A certain partic 0lo6.*j 50piik0d5s kupfpsnle undergoes erratic motion. At every point in its motion, the directio60 o0 dsisp55ink*p.u l0fk pjn of the particle’s momentum is ALWAYS

  17.14: A block is suspended in the air at the end of a st(b+vj 77xg gpkring held by a person. The person pulls on the string uniformly accelerating the block upward for a short time. During t +gvb7p kj7gx(his 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 situations is the net forra6)(c/ e2l0sq.xh irhlhcy9ce constantly zero on the oi 9lyh sr)2.ehc06(cahqx/ rlbject?

  13.28: An object is in g2fkfm,2gssj5n ).*thts9mggw 5(c 58 h oehufree fall 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 as it is being stopped by the person? The magnitude of the object’s acceleration is a and the magnitude of the accelerationuo , f.2st)5nmhhgs (mckjt8hwge *2s5 9 fg5g from gravity is g.

  98.03: An object in equilibrium has three forces, F1 of 30 N, F2 of 50 N, (bsubx0yn q )7jd1+lkand F3 of 70 N, acting on it. The magnitude ofln07yjk+d q xbb(u1s) the resultant ofF1 and F2 is

  01.07: A force of 6 Newtons and a fyqm 6ktwo-l mf,34p l**ysy +corce of 10 newtons can be combine to form a resultant with a magnitude of which opwl6*+* m ,mqfk 3stcyl 4oyy-f the following

  10.06: Which of the following statements is mol zt) sxj.9 (apyl0pxp. /,cal9so; most closely associated with Newton’s Third Law osjo.,0 xy xa/ 9( z)opctl9m .;pslalpf Motion?

  95.06: The reaction force does not cancel the hg dh+fany4nhkf2 /v -12v. nhaction force because:

  14.14: A box rests on the floor dl.:l;8i ez hxof an elevator. The elevator is accelerating upward. Which one of the following choices best represents the Newton’s Third Law pair force to the gravitational force acting on h ;ldzl8e:x.i the box by the Earth?

  15.15: A skydiver falbkdas8 g. bpcr 3wzz.01z1;w sls downward through the air with constant speed. Which one of the following ckwcp .0 r18s b. a;3zswzzd1bghoices 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 by a pitcher with a speed of 35 m/s. clfn-l e:rfxaz mos c,)-22xwv -s: t: The batterswings and hits the ball. The magnitude of the force that the ball fla-s:xol c:-me s2: rz2nt, f-v)wxc exerts on the bat is always

  11.13: A physics book sits at rest on a table. On top of 6m 1uq v u +qp;( nk.hifx,xnu5aa0su7the book is a calculator, also at rest. Which h asiu6u .0kn pn,7xvu+xqm (qfua;1 5one 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 lab conducting an experiment redogv +oq+ qgi5 6/f :v1:hhmrflated to Newton's Second Law. The collected data were displayed on the graph at the right. From this graph, what conclusions can the s m+oh:od+ q6: fgvrqh/fg5i 1vtudents make?

  99.03: If the net force on an object were doubled while at the same time the mz pz*r h 41+q7eeyw5uhass of the object was halved,then the h+zr5hu * 14py7qee wzacceleration of the object is

  96.15: A car whose mass is 1500 kg is accexgw x7s2 ufp7i5 u*+wjlerated uniformly from rest to a speeduxjx7 w7gwsp5 f2*iu+ of 20 m/s in 10s. The magnitude of the net force accelerating the car is:

  99.05: A tractor-trailer truck is traveling down the road. The mass of thlxdu n;*tzzy5 c-*o-ye trailer is 4 times the mass of the tractor. If the tractor accelerates forward, the force that the trailer y-;*ultyo*cn -zd z5x applies on the tractor is

  99.16: Which of the following principles so193mcpmd : nbest explains why large tractor-trailer trucks generally accelerate much mo9:oms3cdmn p1re slowly that automobiles?

  99.19: A 50 kilogram skater at rest on a frictionless rink throws a 2 kilogrg;k-bpn1 /nilh il; g.am ball, giving the ball agl h in; ./b;k-n1lgpi velocity 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 9+,d 8e c;ehyhc4rehqnewtons is acceleratedrh,+; e4 qyehc98 edhc at $4\;m/s^{2}$ . What is the net force on the object?

  98.25: A car whose mass/o 4 dp1oqpmj2j6h z:hp r)u9j is 1200 kg is accelerated from rest by a constant force of 2400 N. What is the speed of the caq 6/ph1pu9joj :r4zo)pj2md h r 8.0 s after beginning?

  98.32: A 3.0-kg block with initial speed 4.0 m/s slyqm) xrd ft.bp h;3*-w4jxe1 nides across a rough horizontal floor before coming to rest. The frictional forty4h- xe1r* n) w;p.jb3fmqxdce 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 4gyie)wb n3);+el5i3v2xvtgis / c:a m.0 m/s slides 8.0 m across a rough horizontal floor before comintnx2)e/egig;m3v3vi i l5: )cwb+ ys ag to rest. The coefficient of friction is:

  09.21: A 20.0 kg box remains at rest on a horizontal surface id*vv rn a97*x )iio:9fx .tbswhile a person pushes directly to the right on the box with a force of 60N. The coefficient of kinetic frictf)i abn :9irs *ovv 7*.ixxdt9ion 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 accele assy5o1-dgn10lmgv- rates 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 kine sas5oy-d1l-g0mv1 g ntic friction between the surface and the block?

  00.21: A car of mass m slides across a p xf+i,i3nask)nzb3 tlqj7i5+atch 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 between the tires and the dry road is μ ti 3ijnn)alqi7f,b+ +5k3z xs.
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 with its brau x3naz39 s7oykes locked. It then hits dry pavement and skids to a stop in a distanced. The coefficient of kinetic frictiozyx7ao ns93u 3n 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 emergeor:rcsq 9f)w n1wr4u9ncy stop by slamming on the car's brakes and skidding to a stop. How far would the car have skidded i94uc9rn )r :q1 fswowrf it had been traveling twice as fast?

  99.39: The driver of an automobile must carefully contry vpz1 l-3m+lg 01gbjjol each of the following devices. Which of these devices can cause an accele0gbvlp3+1 j1zm j-yglration 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 neibk )i1vw3jyb:viod( 1x3ib4mzq0 9s8qb2a a wtons. About how much time is needed to increase the rocket ’ speed from 12 m/s to 36 m/s near the sur: )a9zskj2d8bviby1( 3i 3mo4biiw1q vq0xba face of the Earth at takeoff?

  07.21: A box slides to the right across a horizontal 2o-57xkxg wbz floor. A person called Ted exerts a force T to the right on the box. A person called Mario exerts a f-w5xogxb 27zk orce 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 thr3htk + zbs bq)ua6q+qoaxr,3-w ixk20ee roller coaster tracks of equal length. Assume that on all tracks the 0,)q+b stha3i2abxzu-k +wo k36rqqx 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 i jya-;hx4 ; 2oyjqc+j9r6hp fcoaster 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 tracks to thef;jhi qay;9xpr j6o4 2+h- yjc 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 curved traz-s rf *yyl84uck from point A to point C under the influence of gravity. What would be the direction of the cart'szl uy-48y *rfs acceleration at point

  02.40: A box with a mass of 50 kg is d 4-2jvznzg12xc+ljt tragged 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 requ j2+vz24 c1tzntx -lgjired to move the crate at a constant speed of 20 m/s as shown in the diagram?

  04.40: A 6.0 kg block i0zs+0 fueyjcg) da2r 3,sjm1 bnitially at rest is pushed against a wall by a 100 N force as shown. Thecoefficient of kinetic frictionyf sza,2ej3d1 b0)r 0 mj+cgsu 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 horizontas- hxqsl jhtmtve).90wxa872 l 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 magtl28satsw.v em hx-7hx0 9qj )nitudes of the various forces on the lawn mower. Which of the following relations among the various force magnitudes, W, f, N, P is CORRECT?

  06.14: A book leans p*mzh6 ,6aion against a crate on a table. Neither is moving. Which of the following statements concerningza 6m*n h,iop6 this situation is CORRECT?

  06.15: A crate of toys remains at rest on a sleigh as the sleigh is pulled up a mp8l) xuu1bspdf)/ 6r;/n vlghill with an increasing speed. The crate is not fastened down to the sleigh. What force is responsible for the crate’s increase in sp; 86s/ mvx bpdl1/nlu gup)fr)eedup the hill?