99.36: What happens to the inertia of an object when its velocm mun ok;3bvn, cjc1apf.6x9-ity is doubled?

  02.14: An intrinsic property of matter is one that does not dep+; 15 w f.acohqrwfu-bend on the quantity of matter present. Which of the following properties5 q-u whbf.+a;wco 1fr is NOT an intrinsic property?

  04.16: A 20 kg boulder rests on the surface of the Earth. Assumc+g5a v,d56woi2mij+w ge 6 wye the Earth has mass gc5ygwd ia,ij6+ weo5+w2vm6 $5.98 \times 10^{24} \; kg$ 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 g nv.y+k2k w/ythe Earth. What is the magnitude of the gravitational force acting on the earth by the sphere? The Earth mngy2/ kkv.wy+ass is $5.98 \times 10^{24} \; kg$ .

  00.09: Is it possible f-o6 zn.p9 h sv6uoim;sor an object’s velocity to increase while its accelerationv o.-;66shospuminz9 decreases?

  00.11: A certain particle under+mqouwv 8.bb5 goes erratic motion. At every point in its motion, the direction of the particle’s momentum is 8.u bbm5q wo+vALWAYS

  17.14: A block is suspended in the air at the end of a string helfe y/qc y(t99td 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 9 qcy/t(f tye9Newton’s Third Law pair force to the force of the string on the block?

  07.18: In which one of the follavsj+ 5wq+bd b-g5z +kowing situations is the net force constantly zero on zb gw5jasd 5b+-++kqvthe object?

  13.28: An object is in free fall cl 6pcnmg )fuqd g(rh /.cs:3ine 8stx20ose to the ground. A person intervenes and slows the object unig./ xur() s3n g 0nm fs2t6ipc8c:ehqdformly 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 eqy0ca+( : qnukquilibrium has three forces, F1 of 30 N, F2 of 50 N, and F3 of 70 N, acting on it. The magnit0cn quyq( k+:aude of the resultant ofF1 and F2 is

  01.07: A force of 6 Newtons and a force :d9nifhp9/2w7tdjwq .y7x g oof 10 newtons can be combine to form a resultant with a di9 pwo nt:/xj 2ydw.7g9q7fhmagnitude of which of the following

  10.06: Which of the following statements is most closelya,7 c:spygap 7 associated with Newton’s Third Law 7pcy7aps: ,a gof Motion?

  95.06: The reaction force does not cancel the act lc 9el77mu s2p6s yocx74lnt-ion force because:

  14.14: A box rests on the floor of an gta c2h):hsi2 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 the bots :2hc2ih ag)x by the Earth?

  15.15: A skydiver falls downward through the air with constant speed. Whicu)6t):e sh ;dwkc(fi , b1gjsxh one of thede(usx c),6:fkw isj;th )1bg following 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 by a pitcher witg8x acal1(v -drr6gk.h a speed of 35 m/s. The batterswings and hits the ball. The magnitude of the force tlxc6g aagv r(-k 18.rdhat the ball exerts on the bat is always

  11.13: A physics book sits at rest on a mhfc0c v2/v: 9kasi t*table. On 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 the force that ttc:0*fvh2 s9v k/imc ahe table exerts on the book?

  05.06: The students in a Physics I class were in lab conducting an expzyasw+ ;)4z6i u gu(sieriment relaysu+);gz4 i(asz wu6i ted to Newton's Second Law. The collected 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 objdggl .4r:9 49 rnrsywxnkx7i/ ect were doubled while at the same time the mass of wi 4lxn: g.k7rr y dgsr9/x94nthe object was halved,then the acceleration of the object is

  96.15: A car whose mass is 15+d9fj w)b/s m/wxi+arb g btv.f9(b:e00 kg is accelerated uniformly from rest to a speed of 20 m/s in +dba(b)fwb+: e fbx9mj.r9 s/w/ ivtg10s. The magnitude of the net force accelerating the car is:

  99.05: A tractor-trailer truck is traveling dow/ph 2avb(ll3z90tkk gn the road. The mass of the trailer is 4 times the mass of the tractalt3kzbl09v/khgp (2or. 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 tractor-trtl.jc ;o nl03bailer trucks generally accelerate much more slowly that automobilestlocjl0 b3 .;n?

  99.19: A 50 kilogram skater at rest on a frictionzdq0d 05l.cm bar j6y+less rink throws a 2 kilogram ball, giving the ball a velocity of 10.6 j+zcmq0d0yl 5 dbr.a0 m/s. Which statement describes the subsequent motion?

  00.13: An object near the surface of the earth with6(y4x fg n 3fzykxi7)o-tbdq) a weight of 100 newtons is accelerated atdq(f7 bgnk ozyf3i4 )y-x 6x)t $4\;m/s^{2}$ . What is the net force on the object?

  98.25: A car whose mass is 1200 kg is acceler v;b ivr.ep45fated from rest by a constant force of 2400 N. What is the speed of the car 8.0 s after beginninfv4p5ievb .r; g?

  98.32: A 3.0-kg block with initial speed 4.0kj. by/o z6ae: m/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 slide before coming zje.: akyb o6/to rest?

  95.38: A block with initial velocity 4.0 m/s slides 8.0 m across a rough hojn4t 6e0 .edpsrizontal floor before coming to rest. The t se.4 0de6jnpcoefficient of friction is:

  09.21: A 20.0 kg box remains at rest ob7do.7. zdf7 ekfv d.b.;k7og wz fjr:n a horizontal surface while a person pushes directly to the right on the box with a force of 60N. The coefficient of kinetic fr b7 .7dw.fv r7k kzf:7; .odgedz.ofbjiction 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 acceler4 hk8 ejkbgg-dkm fk.27r 76rqates uniformly to rest on a horizontal surface. The block travels a distance of 12.0 m during the slide. Whigjdb gk-k78 7rhf 2kr4ke.m6qch 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 across a patch of ice at a speed v with ix ir emat 2tr+st h.wxo)g-.)9ts brakes locked. It then hits dry pavement and skids to a stop in a distanced. The coefficient of kinetic friction betwet wth9o2gtr x. smi).-x)er+aen 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 spe*g2fmc/mo;veplr.bj2fqn ,9 ed v with its brakes locked. It th;rjvb.enm f2g9* cfqo, l/m2 pen 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 makes an emergency stop by sj6 ;v(baqb c7r obe*u2lamming on the car's brakes and skidding to a stopa rbq;6*2u(7vbojec b. How far would the car have skidded if it had been traveling twice as fast?

  99.39: The driver of an automobile must carefully contro *uiln2sdivtao7j)/0gqyqc x34 50 mel each of the following devices. /gq 2 0e0y3txa lij vqnmd*75s c)ou4iWhich 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 weight of 15000 newtons is 24000 ne /aji iqu13n+vwtons. About how much time is needed to increase the rocket ’ speed from 12 m/s to 36 m/s nvq 3ij/uan 1+iear the surface of the Earth at takeoff?

  07.21: A box slides to the right across a horizontal floor. Adph:hh+qgt kg lsa 0;0) w)j0/,v fhlb 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 th h0f+l;,awpvk sh:0)) t0jdgg/ h qblhe 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 bewlmnm lim( b01, ei7*1tfbk -nlow shows three roller coaster tracks of equal length. Assume that on all tra7-bbfn1,w( i *0ikmltlm ne1m cks 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 be /aa (t,goaa,n6tvf(/f;ed zklow 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 over the tracks to the finivgtazf e/(/aaf6at(o,,d ; k nsh.
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 theryg/ tv+-)ys b curved track from point A to point C under the influence ob y)y+sg -vr/tf 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 +ot1 phc5tn a *pcps9 o495uqpfloor by a rope which makes an angle of 300 with the horizontal. Which of the folotp p5 a c1nsph599qctu*4+ polowing would be closest 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 i e- 6ml bgx7)dqp+z/kynitially 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 friction is 0.50. What is true of the fricq + /yb)6egl7k-p xdmztion acting on the block after a time of 1 second?

  05.10: A homeowner pushes a lawn mower across a horizontal pa4h/ ,jabl .cxl(qg, oetch of grass with a constant speed by applying a force P. The arrows in th (lo /qjg,abce ,x.4lhe 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 magnitudes, W, f, N, P is CORRECT?

  06.14: A book leans against a5ywppb;. 1tyh,x ezo* crate on a table. Neither is moving. Which of the following statements concerning this situati . b oppxyetwzy5*1;,hon is CORRECT?

  06.15: A crate of toys rema+ 1pex qahf;+bins 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 th 1x+b;p eaf+qhe crate’s increase in speedup the hill?