99.36: What happens to the inertia of agn3j-wrnku * 6n object when its velocity is doubled?

  02.14: An intrinsic property of matter is one that does not depfz v,2:1lbagiend on the quantity of matter present. Which of the following properties is NOT a2 fi1,zbglva: n intrinsic property?

  04.16: A 20 kg boulder rests on the surface of the Earth. Assume the gkrh:f8puj3o h1 l6p+cet9*z Earth has masrheplo:hk9z6t *c gj +fp1 8u3s $5.98 \times 10^{24} \; kg$ 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 Ea- i :updkjrx dl;wunk46qh17(tp,1earth. What is the magnitude of the gravitu- akdew;q (up7 i4:k1rl6pt,xh1jd national 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’s velocity to increase while its acceleratio)telp zi).)v5 v5msi qn decreases? s)iv.mlzv)5q e5 ti)p

  00.11: A certain parti+sczzql9t9r:;95n2yuwe0fzwo g m) d cle undergoes erratic motion. At every point in its motion, the direction of the partie : )zg +9 t09ozfzd snq9wlcy25rmwu;cle’s momentum is ALWAYS

  17.14: A block is suspended in the air at the end of a strycr5 b 8dl q7s5uiu)*oing held by a person. The person pulls on the stri*o yb55)lir u78ucsqdng 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 net force conse2e tw* uxngepj a63-)rn 3g-itantly zero og)3axn 6-ee jwu2p-nei3 gtr* n the object?

  13.28: An object is in fl+vet1i a 9:vuree 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 thiue:a+ t9vlv 1e magnitude of the acceleration from gravity is g.

  98.03: An object in equilibrium has three forces, F1 of 30 N, F2 owht3etyn) m3 4vt b7u:f 50 N, and F3 of 70 N, acting on it. Th )nvbm4e3 ut:t 3ywh7te magnitude of the resultant ofF1 and F2 is

  01.07: A force of 6 Newtons and a force of 10 newtons can be z4wh trnto1ntth rq-mw/9cj9* fb0;3combine to form a resu-ft 3 r9m49n/tow;bhzr10ttnhqw* cjltant with a magnitude of which of the following

  10.06: Which of the following ss; a xp *+ivg,r4w8j)u8b zdkltatements is most closely associated with Newton’s Third Law of Motiodl8wv ;gzarbuk8 * ip,sx+j)4n?

  95.06: The reaction force does not cancel the action force becaus i9b3hnjie tu9/.b -w/lunkt0e:

  14.14: A box rests on the floor of an elevator. The elevator isz+4qh 8i,r3e1 1 d ovtw+tocik accelerating 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 Eartc1dti +oro zv,ht+1iwq83ke4h?

  15.15: A skydiver falls downward through the air with constant speed. .wbzmu9rjah- vl0x 4.de 5gw+Which one of the following choices correctly describes the Newton’s Third Law pair force to the air resistance acti 5wb. wzx ar.g 49h0ud+vjlm-eng on the skydiver during the fall?

  06.08: A baseball is thrown by a pitcher with a speed of 35x)79b uix,wr*88)dmt kk/ic emwl o,u m/s. The batterswings and hits the ball. The magnitude of the force that the ball exerts on the bat is aliw bxwt,cxu)ukr,k 8 od* im)/89m el7ways

  11.13: A physics book sits at rest on a table. On top of ; .2ol:r,vjb kck *nsythe book is a calculator, also at rest. Which one of the following choices is the Newton’s Third Law pair force ton*lo jv2kk :rb,.cys; the force that the table exerts on the book?

  05.06: The students in a Physics I m:iqvw,3hy) zv6mj :bclass were in lab conducting an experiment related to Newton's Sec,j vmi bw)vhq :zy3:m6ond 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 objecrmwp 8s9ai3 i(.xitr) t were doubled while at the same time the mass of the object was halved,then the ai8pt wrrai( 9m3 i)x.scceleration of the object is

  96.15: A car whose mass is 1500 kg(dov705w jkcxxtqbp 9 /p1p :v is accelerated uniformly from rest to a speed of 20 m/s in 10 p/xjtk5:d(7 wopc91qvv0x pbs. The magnitude of the net force accelerating the car is:

  99.05: A tractor-trailer truck is traveling down the road. The mass l. nd-cbr4ba /ce9g q;of the trailer is 4 times the mass of the tractor. If the tractor accelerates forward, the force that the trailer applies4 ng. cb qe9c/bl;da-r on the tractor is

  99.16: Which of the following principles best explains why l1cpya ,l q *w00eg0duearge tractor-trailer trucks generally accelerate much more slowly that autd qe*y0e0cwu,p0g1alomobiles?

  99.19: A 50 kilogram skater at rewk 64r +yksa 0*swrh9est on a frictionless rink throws a 2 kilogram ball, giving the ball a velocity of 10.0 m/s. Which statement describes the suse k+wakh w0yrs r*946bsequent motion?

  00.13: An object near the surface of the earth with a weight of 100 n5v zge, mnyg+.kfnml1+u;ef1 ewtons is accelerated at nu,km51;mnl+g+g1ffzey v e .$4\;m/s^{2}$ . What is the net force on the object?

  98.25: A car whose mass is 1200 kg is accei5d /x xe-oe9zlerated from rest by a constant force of 2400 N. What is the speed of the car 8.0 sxi/5 oe9-d xze after beginning?

  98.32: A 3.0-kg block with initial speed 4.0pm 1kzry 5r;) m h5p1(aika8hg 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 beforg8)arip1 yh5;5mrzk 1h mk a(pe coming to rest?

  95.38: A block with initial velocity xc8z-p7 bvfxj;ck q*d1q+ (j n4.0 m/s slides 8.0 m across a rough horizontaxdznc7*jj1x( ;qv8ck +pqf -bl floor before coming to rest. The coefficient of friction is:

  09.21: A 20.0 kg box remains at rest on a horizontal surfaz -bq 9d-rhuoywi87s* ce while a person pushes directly to the right on the box with a force of 60N. The coeff9qb*hzoi -w7r y usd-8icient 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 5;(wv. c1fhose(s6-qsj dmkg 8 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 representsk- mq5o6 ds(swv;f sejh1.cg( the coefficient of kinetic friction between the surface and the block?

  00.21: A car of mass m slides across a patch of ice 83aj :p5py dzch5 gs9hat 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 the hy:d 5cj5 93g8hpza psdry 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 pz9i* 8zo8qg1ox y7 l ehcp,,zspeed 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 the dry road is μ .,g ,yz*ci9 8zope7ol 1pxq h8z

If the car had a speed of 2v, it would have skidded a distance of

  04.32: he driver of a car makes an em7qrg 9 ;ec0rhbergency stop by slamming on the car's brakes and skidding to a stop. How far would the car9bhqcr0;e 7g r have skidded if it had been traveling twice as fast?

  99.39: The driver of an au8zqk at pmf:u,( s4nu+tomobile must carefully control each of the following devices. Which of these devices can cause an acceleration in afqtk4zs ,n uu(mp8 +a: moving car?
(1) the break pedal ( 2) the gas pedal ( 3) the steering wheel

  00.25: The net force on avvs4jkh0,qg 1lm2q 2 s rocket with a weight of 15000 newtons is 24000 newtons. About how much time is needed to increase the rocket ’ speed from 12 m/s to 3v 2qg klqj4sm 0hs21v,6 m/s near the surface of the Earth at takeoff?

  07.21: A box slides to the right acrossn (ttq1en+f t qfna-ey: 51kd8 a horizontal floor. A 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 the keyn t:ta8 1f+5n fnq( eq-1tdforce 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 rfpr wwsnq2nu81w4 qjpux7b 8q:7s0e;1x2 w kj oller 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 8w ujskswnqx0 r:17 fwep xqj4;p7u28q12wb nthe 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 equalb3scikv -xq.1-)2uw/yytepz length. Assume that on all tracks the roller coaster carts start from rest at the same elevation and y12xi.qt z)p 3ywc-sb-ve /ku 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 f0x 3jt*60t2zsc0. oqeaf we uprictionlessly 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 poino.tctj *e00 62a0fspxqew uz3 t

  02.40: A box with a massyrb* ovvhj b)g8 :qm0tchc;7+ of 50 kg 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 force ;t h7) q h+*0rygbcv:v co8jmbon 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 so go)..ao1q y,b 0l ktreqm94 ,xu)hiinitially at rest is pushed against a wall by a 100 N forc,qmhtx49o e,lo0rbag)ui1.q.) so yk e 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 block after a time of 1 second?

  05.10: A homeowner pushes a lawn mower acros k sf0ae.b9l*vg6x 4eaw1eev7s 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 magnitudes, W, f, N, P is CORRECTefea4.l6ek*0gbs7w v ev19ax ?

  06.14: A book leans against a crate on a table. Neithern1ki) b9 hl1+e(t/u pave0kd vev23ko is moving. Which of the following statements concernk o)due0v 2kl/et evih19( n3v1+kpabing this situation is CORRECT?

  06.15: A crate of toys remains at rest on a sleigh as the sleigh is pulled/b9rq 3 5 )lhqih(xlnuex m9n7 up a hill with an increasing speed. The crate is not fastened down to the sleigh. What force is responsible for the crate’s increase in speedup xnqbm /9 i7r q9xne llh53(hu)the hill?