99.36: What happens to the inertia of an object when its velocity i h8hn+x pbgansl4 (59;rfjmm;51 zwrc s doubled?

  02.14: An intrinsic property of matter is one that doeqci. f+bwff2*y csic6yrw5, 8s not depend on the quantity of matter present. Which of the following properties is NOT an intrii,iw6y ccq b +8wf*fys2.rf c5nsic property?

  04.16: A 20 kg boulder rests on the surface o/9w;*8yzv:9+ a1 njs2xsns alr oo ejrf the Earth. Assume the Earth has ma*8/jroea2;:+1xo ylj9vn s9zwsnas r 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 free fall near the surface of the Earuhozqie v4il4 9) s; skx7:f*p92lsh uth. What is the magnitude of the gravitational force acting on thvl;4 9 izupi:)ukehs 7s*hqo lx fs249e earth by the sphere? The Earth mass is $5.98 \times 10^{24} \; kg$ .

  00.09: Is it possible for an object’s velocity to increase whk5b5c a).+zlmqa lze7ile its acceleration dekzqb.z5l7) la 5 +emcacreases?

  00.11: A certain particle undergoes erratic/e-61u tp1y8xrjb5ojk4 ut -ag l a vd+1qouf; motion. At every point in its motion, the direction of the paq-udjexfj+al151tr6a uby o4 vgt- uop/;k18rticle’s momentum is ALWAYS

  17.14: A block is suspended in the air at the end of a stribzfs. *ai3rj 9ng held by a person. The person pulls on the string uniformly accelerating the block b ijs.zrf3*9a 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 net force k fa*:s0wedzha *m6rm:ydr 10 constantly zero ofz6dd*rm 1kwrah: ys *0a0:em n the object?

  13.28: An object is in free fall close to the groun( zod jr 4,wl2c7cqsqpf( 7:mxd. 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 lm7f zpcw(x oq,7s:r2 qj 4d(cobject’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, wp9l9rs3a6 .h 3i kdyo7,+ oaius1bogF2 of 50 N, and F3 of 70 N, acting on it. The m7ubsaa+dy orh 1sp.i, o3k39w6 ig l9oagnitude of the resultant ofF1 and F2 is

  01.07: A force of 6 Newtons and a fo1ya) - 5xh;)zcobrza6 jmsr)arce of 10 newtons can be combine to form a resultant with a magnitud; bs6ya)z1 razm ojhcr5)ax)-e of which of the following

  10.06: Which of the following statements is most closely associated with Nnhate3zs6wop d(fozu4z,6 ,-ewton’s Third Law of Motiona zs(d zt,6owpfh3 no-6e4,zu?

  95.06: The reaction force does not cancel the action fo+ fe+ k0ti)ebk9fr6hw eslowfr** 7m/l0hf.srce because:

  14.14: A box rests on the floor of an elevator. The elk1 1q bc3mit3ov8vvo9 evator is accelerating upward. Which one of the following choices best represents the Newton’s Third Law pair force to the gravitational force acting ookb83o3 qvm vvi1 t1c9n the box by the Earth?

  15.15: A skydiver falls downward through the air with constant speed. Which o0o+p ik8s5nlu-9 ;f/nuik sw one of the following choices correctu0i opn l fu8 oki/k-;nws+5s9ly 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 pitchetegx+ :ay)nren xt6b.u 5-ibp :*-u*l6ti sqkr with a speed of 35 m/s. The batterswings and hits the ball. The magnitude of the force that the ball exerts on the bat a :exubb-tg5 ye)6i.ikt6-*+qxl:tpsu n rn*is always

  11.13: A physics boo rol* ( (;/awahvq9yalk sits at rest on a table. On top of the book is a calculator, also at rest. Which one of the following choices is the Neqa/ro9 yhal;l *wv(( awton’s Third Law pair force to the force that the table exerts on the book?

  05.06: The students in a P 8))nd73lj5 9k rpotolqh.rhbhysics I class were in lab conducting an experiment related to Newton's Secono5 8. )lqlb73jor 9)hpnkdh trd 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 object were doubled while at the same tk + ko7bk**lstime the mass of the object was halved,then the accelerationsto*k 7*+klb k of the object is

  96.15: A car whose mass is 1500 kg is acceleratenmi358ea7xke sh,v9ed uniformly from rest to a speed of 20 m/s in 10s. The magnitude of th 9e mi ,xe58ek3nhsv7ae net force accelerating the car is:

  99.05: A tractor-traaje:a-p(ur:anm p 17niler truck is traveling down the road. The mass of the trailer is 4 times the mass of the tractor. If the tractor accelerates forward, the force that the a:np 7r1me a: (uap-njtrailer applies on the tractor is

  99.16: Which of the following pvfan;k)lr (44 z x- x,akmzq5urinciples best explains why large tractor-trailer trucks generally accek4a ;(mxkx5 -rlq4) zzavunf,lerate much more slowly that automobiles?

  99.19: A 50 kilogram skater at rest on a friction5a7/o4ds3z:f,6vhw h4 hy gbsr3gitf less rink throws a 2 kilogram ball, giving the ball a velocity of 10.0 m/s. Which statement describesf tahw g3hf:dg4 oh4ssb7 z/6,v3ir5y the subsequent motion?

  00.13: An object nea q 4/:rkk/h fjc--nz.*m;laa 9n dkypsr the surface of the earth with a weight of 100 newtons is accelerata/k9/4-n f- rd m*. pch jslqkazyn;:ked at $4\;m/s^{2}$ . What is the net force on the object?

  98.25: A car whose mass is 1200 kg is accelerateyl2 zsgff oh7*xtkb+:c,,u(d d from rest by a constant force of 2400 N. Wha7(f ,hxd+cslz*u,o tfybg k :2t 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 x *xo; sh+b*suslides 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 us*+o hs; *xbxbefore coming to rest?

  95.38: A block with initial (k5e(r. gahtt v.we08c1bqvu velocity 4.0 m/s slides 8.0 m across a rough horizontal floor before coming to rest. The coefficient of frictukc 0 .(tba5(t1reqw.hg8vve ion is:

  09.21: A 20.0 kg box remains at rest on a horizontal surface while a person puhfk2 9*uf7hxnshes directly to the right on tfk*u72f hxn 9hhe 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 at78- bn +oyk n-4:9hhyczkfyje 8 m/s accelerates uniformly to rest on a horizontal surface. The block travels a distance o 4k hfn8h:97-n ojyye-ck+ ybzf 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 patch of ice at a speed v wp t0ulx tj8* 1 8vc k2a3,ngdo,8zlecfith its brakes locked. It then hits dry pavement and skids to a stop in a distanced. The coefficient of kinetic friction between the txjcgfl*l08u,nd k v,tap 1cet 8zo832 ires 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*7 w5o o2a:jujhcxuf+ a patch of ice at a speed v with its brakes locked. It then hits drao7f*c jx5 : oj2u+uhwy 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 slamming on z)di+rgznp:: zj(nl w2)/ cpbthe car's brakes and skidding to a stop. How far would the car have skidded if it had been traveling twice as fast?w2 j rn))g b(npz:z:c+id zlp/

  99.39: The driver of an automobile must carefully control each /4dmrj*nml xjk3,v lnq0r.(xof the following devices. Which of these devices can cause an acceler43qvr.*(d0 ljl/mxnnx,jm k ration 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 ofzgqhea1g(x 62 15000 newtons is 24000 newtons. Abou6ze 2xhgqga(1 t how 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 floorf u,f)w;sl,d v +nj9mm. A person called Ted exerts a force T to the right on ,ld ;uf9)smfm+w,nv j 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 to the right, rank the sizes of these three forces exerted on the box.

  02.27: The diagram below shows three roller coaster tracks of eququl0rqb29pb9*y rp *li1qf 4 yal length. Assume that on all tracks the roller coa 94r*1pplub9l02 bq*yfqiyqr ster 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 equal length. Ass9)ghli m2-e fmume that onf 92i m-meh)gl all tracks 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 reach the finish first?

  02.29: Assume the rollercoaster cartrolls frictionlessly 81q9y95 flx/gw bsilt along the curved track from point A to poin ts9g1 y8 li/q9wx5fblt C under the influence 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 dragged across the floor bypaxvpc+0xqz9z tp hf,5xq4i *vb 7p,1 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 required to move the crate at a constant speed of 20 m/s as shown in the dppx,0xav17xqh tfiv * pc+p z,9bq5z4 iagram?

  04.40: A 6.0 kg block initially at rest is pushed against a wall /mcq: vrrjk5pxo,p w , lui.4u48zdx 2by a 100 N force as shown. Thecoefficient of kin4:2cdpi q owu.,8mzuj4p v5 k,rxrx l/etic 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 across9ps,lj .-eek 0aja6 ym 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 magnitude.jem ej y6ap,as0lk 9-s 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 table. Neither is moving. l1q:hmt 4jf 0lWhich of the following statements concernf q 1:hm4ljlt0ing this situation is CORRECT?

  06.15: A crate of toys remains at rest on a sleigh as the sl;afx zv6inc th/j+j2,eigh is pulled up a hill with an increasing speed. The crate is not fastened down to the sleigh. Whzi,xj+h a cvf;j6n2t/ at force is responsible for the crate’s increase in speedup the hill?