99.36: What happens to the inertia of an objecgamed 3 uhv79i fr8dqkh08w;ap .* d4.,fcgbyt when its velocity is doubled?

  02.14: An intrinsic property of matter is one that does not depend onn.ej7*mbvt,i8 d8 xe-a lb2 og the quantity of matter present. Which of the following properties is NOTtl e a8b7 evob,2i jng8xm-d.* an intrinsic property?

  04.16: A 20 kg boulder rests on the surface of the Earth. Assume 2yws .kipbm3tugs 60jdg6 c:1the Earth has mas:6b1sgc s3t2 pjk0gyudwm6 .is $5.98 \times 10^{24} \; kg$ 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 t+uv:imq5 ds,+9l ehzg he surface of the Earth. What is the magnitude of the gravitational force acting on m gsq9hiv,z:ue5l++dthe earth by the sphere? The Earth mass is $5.98 \times 10^{24} \; kg$ .

  00.09: Is it possible for an object’s velocity5 lz.wkmr y kia)59*fz to increase while its acceleration decrea.zkfi5mal)w y9kr5* zses?

  00.11: A certain particle unders4dh. os2a )vluhs( )+ammj lqxd+9ks.u,n .fgoes erratic motion. At every point in its motion, the direction of the partic (sdlmo2)un.+mk,sx jla9 .h)vsuq4dh .sf a+le’s momentum is ALWAYS

  17.14: A block is suspended in the air at the e-l: .jm ekyli jmaz528nd of a string 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 choicesel 85m i.my2kajlj- :z 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 f4 , lx3y euyt r10cu/*mo3wzkuwi;t7a orce constantly zero on the 7tt,ume4r*k3i wauzco;/x wyl3 0 y 1uobject?

  13.28: An object is in free fall cp+vu l*(w 3gzu +:zprslose 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 peuz+*pvgpwzs u:l( + 3rrson? 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 g 9pw6x1nwsu7has three forces, F1 of 30 N, F2 of 50 N, and F3 of 70 7gw1 xuw sn96pN, acting on it. The magnitude of the resultant ofF1 and F2 is

  01.07: A force of 6 Newtons and a force of 10 newtons can be combine to form x+x;b pw/*eh aa resultant with a exp/xwa* ;+bh magnitude of which of the following

  10.06: Which of the following statements is most closely associated with Nur/7,wy- 7 5ea:n.my37 qkumx:eqr( t oocums ewton’s Third Lamr-eyuqoeu/n,x(cma: 7 u ymot 5r7 7 :q.ks3ww of Motion?

  95.06: The reaction force does wnu5p ij-o036sep yltk9f j2j vy *(e:not cancel the action force because:

  14.14: A box rests on the floor d w-cb; f0qby:gvo+2/ofypw;of 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;b+yqf/ow-;bo2c0wp fgdv : y acting on the box by the Earth?

  15.15: A skydiver falls downward through the air with constant speedwv: 2.ht rdm df(qm ffz*19*r7z; 4omua o4wfs. Which one of the follor2do(fu9mw:f7mh fr vzm4 4t . dsfo;w**q1z awing 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 tv jork80u2 p:qhrown by a pitcher with a speed of 35 m/s. The batterswings :rqoupj 28kv0 and hits the ball. The magnitude of the force that the ball exerts on the bat is always

  11.13: A physics book sits abt -j /pze1q.ez*15v(b tq kos*v.xeht rest on a table. On top of the book is a calculator, al pet beso.5qv*qb(1zejkth vz.1*x /-so 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 I6d5cab y* -h4uj dz) gjdvq2ix7w;i -x class 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 conc dbw-5gcdv)-zji7x d2iu6 ;ay*jhqx4 lusions can the students make?

  99.03: If the net force on anu3:pp967i.y jzyj,wy nowdo/- se2 yc object were doubled while at the same time the mass of the object was halvedzp,y: 3yc/y w72o y .njwed-up9jis6o,then the acceleration of the object is

  96.15: A car whose mass is 1500 kg vj0gon j17+c4fl(zr b r3 uiewy6e x92is accelerated uniformly from rest to a speed of 20 m/s in 10s. The magnitude of the net force accelerating the car is:xr o9l efwj4r27guj+10y e(v bczn 36i

  99.05: A tractor-trailer truck is traveling down the road. The mass of the traipm 2k4bla3l 9k tt592 3g:wrbmcjf1wd ler is 4 times the massj:w tgpc2t 1r2fm9 a5w3k9 km3dl4lbb of the tractor. If the tractor accelerates forward, the force that the trailer applies on the tractor is

  99.16: Which of the following principles best expl46klbv 30c cmrains why large tractor-trailer trucks gmvl c6kbr4c30 enerally accelerate much more slowly that automobiles?

  99.19: A 50 kilogram skater at re vuqyq6 g*)lm6lm :3 6kujp8usst on a frictionless rink throws a 2 kilogram ball, giving the mykg*uu j6ml3pl6sq6)8qv:uball 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 of 100 newton4 z+38.kvhtlqxx 2m 6br a)wwks is accelerateh42 x)qwv wlz 3a8m.kbxkt+6r d at $4\;m/s^{2}$ . What is the net force on the object?

  98.25: A car whose mass is 1200 kg i*i7cw i7ir;c os accelerated from rest by a constant force of 2400 N. What is the speedic*r7i o;iw7c of the car 8.0 s after beginning?

  98.32: A 3.0-kg block with initial speed 4.0 m/s slides a nemr0hw*m69+yuj *qmcross 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 to rest*yqe0h n9 u6 wmm+r*mj?

  95.38: A block with initial velocity 4.0 m/s)yvy 4pi:*o/uvu.z w(v 1wx0tr0t9 zyt m;f ym slides 8.0 m across a rough horizontal floor before coming to rest. The coefficient of *m01 wfuv;t yo:0pmx( z y.vitut) z y9yv/4wrfriction is:

  09.21: A 20.0 kg box remains at rest on a hoava- 30 cufw*lrizontal surface while a person pushes directly toa-*la3uwv 0 cf 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 re(w-f2p1)t pztq1p -qnejb1 ypst on a horizontal surface. The bl ypb 1f2-zpq n1e-q 1pwt)(jtpock travels a distance of 12.0 m during the slide. Which 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 c: ya:tdkosimaa :xb/)r j;z1o pe)m04x..g rpatch of ice at a speed v with its brakes locked. It then hits dry pavement and skids to a stop in a dis r)x odt0xc:aye 1.a: sm.)jkba4mzr op/:g i;tanced. 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 alayt, 4z hlt wj:+3)pg;p.tdj speed v with its brakes locked. It then hits dry pavement and skids to a stop in a distanced. The coefficient of kinetic friction bet.:tj)z gp3t,h l pwtd ;4aj+ylween 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 slammi+qrq36nl0mdrya j,a:m, vf9 r ng on the car's brakes and skidding to a stop. How far would the car have skiddqn:3 9a6 d rayj,rr 0l,f+mqvmed if it had been traveling twice as fast?

  99.39: The driver of an automobile must carefully control each of the fnzw5(i0 s4i ckca3vt1ollowing devices. Which of these devices can cause an accctii0a 5s vn1c3k4(zweleration 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 weit82 dtu xka:1gght of 15000 newtons is 24000 newtons. About ho:u2 8xa gk1tdtw much time 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 to the right across a horizontal floor. A person called Tqyqqv2 w(83lb,5gs fhed 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 friction f and the box accelerates tywbg v,q5q3l8qfh(2s o the right, rank the sizes of these three forces exerted on the box.

  02.27: The diagram below shows three roller coaster tracks b xw1 do:eq /ji/;g7oxof equal length. Assume that on all tracks the roller coaster /ooj;x:gq wexdib /17 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 bez/ dnfm6,/xh llow shows three roller coaster tracks of equal length. Assume that on all tracks the roller coastel/m,fhz/n6d x r 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 fr)udi )1h8 ddf2gkbq*kictionlessly along the curved track from point A to point C under the inf)di 2k1k)q 8gdfub*hdluence 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 draggedaw4a1z 4 pce94sdk7 fz across the floor by a rope which makes an angle of 300 with the horizontal. Which of the following would k7 dze49zfsa w 4c4ap1be 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 initially at rest is pushed against a wall by a 100 N f8 qoc0vhm2i y4orce as shown. Thecoefficient of kinetic friction is 0.30 while the coefficient of static friction is 0.50. What is true of the friction acting on the block2oq v8yc0i4 mh after a time of 1 second?

  05.10: A homeowner pushes a lawn mower across a horizontal patch of neslaq8/* :ifpc*( cai*7vz cgrass 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 magnitudes, W, f, N, P is CORRECT? cc* /vis(inl :q*7acp8z fe a*

  06.14: A book leans against a crate on a table. Neithe0/ (:llpfdu qdr is moving. Which of the following statements cd0/: uf( ldqlponcerning this situation is CORRECT?

  06.15: A crate of toys remainh - (lg*ao ,+aj7kdfats 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 ig dha+ al j-t(ao7*k,fs responsible for the crate’s increase in speedup the hill?