99.36: What happens to the inertia of an object when its velocity is doub40 lqc:7(d)z3hx xxmyz vpg. tled?

  02.14: An intrinsic properqqyb.s (hg 3j4g0iqdm 5n fi23ty of matter is one that does not depend on the quantity of matter present. mjiyg2.h (s g3bf q qqd3in045Which of the following properties is NOT an intrinsic property?

  04.16: A 20 kg boulder rests on the surface of the Earth. Assume the w76;ef3(pg ga ss3arfEarth has mass raafeg6 ;s3g(p3f w7s$5.98 \times 10^{24} \; kg$ 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 sur5tilxs /s8n)uagew:2( pye i7 face of the Earth. What is the magnitude of the gravitational force acting t/ s5i:x(a p )7e 2siylenguw8on the earth by the sphere? The Earth mass is $5.98 \times 10^{24} \; kg$ .

  00.09: Is it possible for an object’s veloc9euup it;labf( l 0(m*ity to increase while its acceleratio;ibplu(f u( a0 et9*mln decreases?

  00.11: A certain particle undergoes erratic motion. At everp.9u+8 re zze iy3*rrov62izq.ixs0ay point in its motion, the direction of the particlxe+* qi6iie 8rv3o.ysrpzz 2 ua.90 zre’s momentum is ALWAYS

  17.14: A block is suspended in the air at z c.p+ugg5v6lfpz:/ n the end of a string held by a person. Thf +n6 v/:gulzp.pcg 5ze 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 Law pair force to the force of the string on the block?

  07.18: In which one of the following situations is the-wnhf98 l2s vw net force constantly zero on t89fsww -2vlh nhe object?

  13.28: An object is in:vj-t+e6e ca b free 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 acceleration frombc tej:av+6e- gravity is g.

  98.03: An object in equilibrium has three forces, F1 of 30 N, F2 of 50 N,pa smohy*yt4x yh86-/ and F3 of 70 N, acting on it. The ysh4-p*6 ha xt/ymyo8 magnitude of the resultant ofF1 and F2 is

  01.07: A force of 6 Newtons and a force of 10 newtoyw fz3 i:8 w5ek 5 mnny;6owkvbvx218h n/7htxns can be combine to form a resultant with a magnitude of which of hxv:k8nw7w2;/ytn v 5ok zy m5 fhxb8w6e1i3n the following

  10.06: Which of the following st don.i .*nuyz75hkld t:nira12v37whatements is most closely associated with Newton’s Third Law of Mot1.il *hrna w3n .h5d:dtznku2y7i7o vion?

  95.06: The reaction force does not cancel the action for t1s5br0zxlzft 0k-a: luu9,rce because:

  14.14: A box rests on the floor of an elevator. The elevatog(szg*cvp0 e1r is accelerating upward. Which one of the following choicz*1 gspec0g( ves 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 downward through ptydrxx p4q zxr. )lxi26:2+ sthe air with constant speed. Which one of the following choices correctly describ:sx4ixx6pzy .p xtr 2)dlr2q+es 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+a9 0r,dfuhkt5n z2cis qpxe f9t, ;b+ m/s. The batterswings and hits the ball. The magnitude of the forcz+xh;fu cn 92, sa0tir9+fetdq p5bk, e that the ball exerts on the bat is always

  11.13: A physics book sits at rest on a table. On top of the book0rgyv/h, 1 )s:q+a thfmp aoo2-ghl* l is a calculator, g:hgovq +-,aa hs 0 h)1orml*yt/p f2lalso 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 clw 7ewo380id dol 5y)prass were in 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 wo5d rdlw03 7)yo8 peiconclusions can the students make?

  99.03: If the net force on an object were doubled while at the same timm.,0 qjkw-3r+cojpn fe the massrwoc-kjn,mj3f p q +0. of the object was halved,then the acceleration of the object is

  96.15: A car whose mass is 1500 kg is accelerat d85d sshl5a0fed uniformly from rest to a speed of 20 m/s in 10s. The magnitude 5ld0fa5s 8shd of the net force accelerating the car is:

  99.05: A tractor-trailer truck is traveling down the road. The mass of tk 0xha/(hz12b6iv ikb .waa1xhe trailer is 4 times the mass of the tractor. If the tractor accelerates forward, the force that the trailer applies on the tractor ish/w. viz01 bikkxb(h1x a62a a

  99.16: Which of the following principlergc654ebeiprux 2q -ex8 be 01*pj(ld s best explains why large tractor-trailer trucks generally acceq1edeiuejl(e-6gb4 r05c8pbxxr p*2 lerate much more slowly that automobiles?

  99.19: A 50 kilogram skater at rsjy 1b+8di u(jest on a frictionless rink throws a 2 kilogram ball, giving the ball a velocity of 10.0 m/s. Which stateju8db+ji(1 s yment describes the subsequent motion?

  00.13: An object near the surface kdmuw)/nqj(7) 1o n wh9sj+rb of the earth with a weight of 100 newtons is accjnr) /b9sw7wo )um k1nd h+(jqelerated 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 cl z()zccf. m8zonstant force of 2400 N. What is t z(8c.)lfzzcm he speed of the car 8.0 s after beginning?

  98.32: A 3.0-kg block with initial speed 4.0 -6 prtj ey(pa)1djqu , xtu4)xm/s slides across a rough horizontal floor before coming to rest. The frictional force acting on the block is 3.0 N. How far does the block sla1 q(pxxjrt) -yud6t )ej,u4pide before coming to rest?

  95.38: A block with iniaw3cc c ziqvp8d 29g.)d xzx)3tial velocity 4.0 m/s slides 8.0 m across a rough horizontal floor before coming to rest. The coefficient of frqxw))v 3 dz 9 xacpi3z8cdc2g.iction is:

  09.21: A 20.0 kg box remaxu/96v am3rn9/cqhmpr1 ,n sgins at rest on a horizontal surface while a person pushes directg1 mx/n a3v/qprsunh,m9 c9r 6ly to the right on the 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 8 m/s accelerates uniformly to r67t bwhhxx)8v est 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 coefficihwhvxx8t6) b7 ent of kinetic friction between the surface and the block?

  00.21: A car of mass m slides across a patch of ice at a speed v with its bra ,pr2 x2sv0dq9nu)6 1h gnmtnvkes locked. It then hits dry pa0,g mxr2n6vdpqu2v htn sn 91)vement 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 sl pyjk ;k;hcc61ibj 30j(ht/cjides across a 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 fk0(h;cp6 3j/j kcjc1j hyit;briction 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 emergen)swq.+ i/mrrz4 2x 4rzj q0ewccy stop by slamming on the car's brakes and skidding to a stop. How far would the car have skidded if it had been traveling twice as frei.rw js/qx z40 )zmcrq+24 wast?

  99.39: The driver of an automobile must carefully control each of the 5uk d jaiz3f4nqdzy3 jp7gfh,,u2-d:following devices. Which of these devices can causj,q3gdyd3u :fjpzu k7dh4 25fzan ,i -e 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 wei. ;(.rp skrsdsght of 15000 newtons is 24000 newtons. About how much time is needed to increase the rocket ’ speed from 12 s ks s.(rrdp.;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 perl 0kv*tddi: 4pl(p2f vson 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 frictilvi :d0dlkfvp tp4(2 *on f and the box accelerates to the right, rank the sizes of these three forces exerted on the box.

  02.27: The diagram b:va6ymp su4l y,0e c i8rlw:9kelow shows three roller coaster tracks of equal length. Assume that on all tracks the rolle 04my,wpiel:ula: vry86k s9c r 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 e)j,prdl7 gkzt6j-/d tb0 qhz*oh1jn:qual length. Assume that on all tracks the roller coaster carts start from rest at the same elevation and moves frictionlessq kod hztgj1tj,*pb6:)/jhz0nd7 l -rly 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 rollercoaste kfcp, kwp-a ai/2k5nb +bz*/jr cartrolls frictionlessly along the curved track from point A to point C under the influence of gravity. What would be the direction of the cart's acceleration at poinb//fpckzw jkp2b a 5k-*+ in,at

  02.40: A box with a mass of 50 kg is dragged across the floor by a0g5ch xnj( tg/ 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 newto 0ct /(5njxgghn 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 pushedquzxrb;(p/9r against a wall by a 100 N force as shown. Thecoefficient of kinprr (;9bx/q zuetic 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 time of 1 second?

  05.10: A homeowner pushes a lawn mower acros0* yurcbmk9pe ja51 8)umgu g-s a horizontal patch of grass with a constant speed by applying a force P. The arrows in the diagram correctly indicate the directions but m auygu) *jkm1r-b5c8geu 0p9not necessarily the magnitudes 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 against a crate on a tabb4lri/n; n )-pv+homple. Neither is moving. Which of the following statements concerning this situation is CORni+4o;rnh p v/m-)pb lRECT?

  06.15: A crate of toys remains at rest on a sleigh as the sleif/d ry u,o6mx-0fu 8lkgh is pulled up a hill with an increasing speed. The crate is not fastened down to the sleigh. W8ordl ,kffm uy-/ux60 hat force is responsible for the crate’s increase in speedup the hill?