99.36: What happens to the inertia of an object when its velocity is 9w.o8cs8k:iv izmuw*gfc * 2o doubled?

  02.14: An intrinsic pro9h7 n4i )u3y opqzcro34cow-aperty of matter is one that does not depend on the quantity of matter present. Which of the follow-)zq4 h nwyo3 o3 9oraccpi7u4ing properties is NOT an intrinsic property?

  04.16: A 20 kg boulder rests on the surface of the Earth oibcr .*fy-vwb 90j5h. Assume the Earth has mab9.fyhji0 o *bvw-rc5 ss $5.98 \times 10^{24} \; kg$ 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 fret;ro( kox 1i0hyrdf7 )lvr.)ve fall near the surface of the Earth. What is thdr xvthviy)o0(; r)17 lk.of re magnitude 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 -f 9jhb6bo +.zdvqkx9’s velocity to increase while its acceleration de dx9zj6 f bqbh.-9o+kvcreases?

  00.11: A certain particle undergoes erratic motion. At every point in i:sf u bi(.ap2j-+nds pts motion, the direction of the particle’s momentum is AL-i+bsp:fd2np(a .u sj WAYS

  17.14: A block is suspended in the air at the end of a string ;4+ z.h1 kq.xaosrw liu(xis* 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 Law pair force to the force of the string on the blockq4ax(lsiwo+u zsihx.; k*1 .r?

  07.18: In which one of the following situations is the net forceiir;4 w,i 0zii constantly zero on the obje0iiw 4 rzi,i;ict?

  13.28: An object is in free fall close to the ground. A persx1c,naql aiv ,ch8qq/*;h( tzon intervenes and slows the object uniformly h chani8/(v*x1 azc,tq;qql, 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 from gravity is g.

  98.03: An object in equilibrium has three forces, F1 of 30 N, F2 of 50zcvr0f:/yose (8ason/(j t e1qb) 8 qg N, and F3 of 70 N, acting on it. The magnitude of the resultant ofF1 and F2/o ago :)szqs8f cyv0(ne1b8qe t(jr/ is

  01.07: A force of 6 Newtons and a force of 10 newtons can bqk o85q s*fzl8e combine to form a resultant with a magnitude of whic oz5s8* qf8qlkh of the following

  10.06: Which of the following statements is mos0 8t/ad8c1 rqnk4y ffat closely associated with Newton’s Third f01cqynfdr4 aa88/k t Law of Motion?

  95.06: The reaction force does not cancel the ac 4dybt26pf9adtion force because:

  14.14: A box rests on the floor of an elevator. The elevator is accelehjcx +-kxuu,1s d3/oo0 3ydw cwno1j6rating upward. 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 Ear+k1 j6w wxxs3 o-uunoj y1,0cd3ohdc/ th?

  15.15: A skydiver fall -ncty5t. m 3ffelu1(ls downward through the air with constant speed. Which one of the following choices correctly describes the Newton’s Third Law pair force to the air resistance acting on the skydilty. e(1cfun3 5lf-mt ver during the fall?

  06.08: A baseball is thrown by a pitcher with a speed5m:tki -vds1 q6 qbc+a of 35 m/s. The batterswings and hits the ball. The magni1ic bt q6v 5-mdsa+:qktude of the force that the ball exerts on the bat is always

  11.13: A physics book sits at rest on a table. zibb37r h:,)phq fx7l 70ea hjOn 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 t r f,h7hie7aj3 )qblxb:70zphhe force that the table exerts on the book?

  05.06: The students in a Physics I class were in lab conducting an experimen.v+v gh m8nctf;b 77:hec:opzt related to Newton's Second Law. The collected data were displayed on the graph at the right. From this graph, what conclusions can the studentc: bv+n8 h;.v:ch gto7pme7zfs make?

  99.03: If the net force on an object were doubled while at the same time t49og8gn x8u,nz-f r kkhe mass of the object was halved,then thek8 -gk, fgxo8rznnu 94 acceleration of the object is

  96.15: A car whose mass is 1500 kg is accelerated uniformly from rest to a spejp2frmu3-hn :9x;k r4va2 4opt krq ,7xry;k ded of 20 m/s in 10s. The may,q kn7;poxuxjdhr4 rk9pt:;2m 3r 2-vfk4ragnitude of the net force accelerating the car is:

  99.05: A tractor-trailer truck is traveling down the road. The mass of thei1-xq*af6 wvq,+4f9jr0rpd lwl7 atz trailer is 4 times the mass of the tractor. If the tractor aql*rvx9,107w jqfza+d lfp4- wir 6t accelerates forward, the force that the trailer applies on the tractor is

  99.16: Which of the following principles best explains why lar (xiqkd,/ hx2zge tractor-trailer trucks generally accelerakiz/ q,(x2hxdte much more slowly that automobiles?

  99.19: A 50 kilogram ska uug-.9evl;s jter at rest on a frictionless rink throws a 2 kilogram ball, giving the ju u9sg-v. l;eball a 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 of35 s,d5nf er/q,2aebl sktsq - 100 newtons is accelerated a,sns/3ltek d 5q5q2s,eba f- rt $4\;m/s^{2}$ . What is the net force on the object?

  98.25: A car whose mass is 1200 kg is accelerated from rest by a con 6mj 48vrvxb,kyoc 16hstant force o 64vm18voxc, jkbyh6rf 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 across a rough horbnm nj297anj /izontal floor before coming to rest. The frictional force acting on the block i bn9a 2/njnj7ms 3.0 N. How far does the block slide before coming to rest?

  95.38: A block with initieaghzl:. lsuak/)( :xal velocity 4.0 m/s slides 8.0 m across a rough horizontal /k.gel :l x):hza aus(floor before coming to rest. The coefficient of friction is:

  09.21: A 20.0 kg box rema8dr xlhsiq +j db)f92v,9krr-ins at rest on a horizontal surface while a person pushes directly to the right oqsr9d,+d-l8x rb29irvf ) khjn 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 836vdt ad/ag6riu n 7.xi1m4ln m/s accelerates 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 km4 itda /vn xru66i7ng1a3ld. inetic friction between the surface and the block?

  00.21: A car of mass m slides across a patch of ice at a ,9x)xrvixjm; speed v with its brakes locked. It then hits dry pavement and skixr m)xj x;i9,vds 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 5sx5y xdnw6 3 igdhy06slides 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 friction between the tires and txh 5 3y60xsdn65dyiwg he 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 sto 6q1 wvocojm7--nu bw 8168i/d jgtyhlp by slamming on the car's brakes and skidding to a stop. 81njby/6671og - wuwot qvcd8- hlmij How far would the car have skidded if it had been traveling twice as fast?

  99.39: The driver of an automobile must carefully contros1kx n0j*hc*bpq,e 1 .q1f twal each of the following devices. Which of these devices c1na.hw, xe11b*j *cpf0t s kqqan 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 5woor8h gf- h-rocket with a weight of 15000 newtons is 24000 newtons. About how much time is needed to increase the rocket ’ spe5ohfog- h 8wr-ed from 12 m/s to 36 m/s near the surface of the Earth at takeoff?

  07.21: A box slides tod8/aq 5ak r8t 5-vmpx)5 cip37d.jcs fnp aj+r the right across a horizontal floor. A person called Ted exerts a force T to the right on the box. A person called Mario exerts a fxrk8jvcpp 85 jfi 3caam+ d .s7a/n)r5tp 5-dqorce 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 coaster trptzt9 ),tn5 sracks of equal length. Assume that on all tracks the roller coaster carts start from rest at the same elevation and tnrtstz5 p) 9,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 belorxngf+boehd) f 76 l8o,)g6 brw shows three roller coaster tracks of equal length. Assume that on all tracks the roller coaster carts start from rest at the same elevation and moves frictionlessly bb)grl)def6o h6fxn8 ,7+rgo 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 c8h)uvzin7wvwp y)q/7ilr9 ( wurved track from point A to point C under the influence of gravity. What would be the direction oy q p i97wwh/urzv(iw78v)ln)f the cart's acceleration at point

  02.40: A box with a mass of 50 k9wwhe3)v fn2 pg 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 for2vw)pw39n hef ce 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 jlw:1;3f j,mvrwb()zi.yepn at rest is pushed against a wall by a 100 N force as shown. Thecoefficient of kinetic fric,ylr nf.:1vj)w ;( zmjbwe 3iption 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 acrosf gwjzn6g+0g5 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 not necessarily the magnitudes of the various forces on the lawn mower. Which of the following relations among the various force mag gj6fznw0+5g gnitudes, W, f, N, P is CORRECT?

  06.14: A book leans against a crate on a table. Neither is moving. Which o+p (h;6fxg5 fl /dy ta9etaud;f the following statements concer6lpgftft/+a;(hdxe95y ad;u ning this situation is CORRECT?

  06.15: A crate of toys remains atu. 1s :y xhqlyozc qpt5r:l ,l/;:.mmx rest on a sleigh as the sleigh is pulled up a hill with an increasing speed. The crate is not fastened down puq:;xqly1:thl.:s r .yz x5om,l/mc to the sleigh. What force is responsible for the crate’s increase in speedup the hill?