99.36: What happens to the inertia of an object when its velocit5 h; 01naa (k5k z0eq7szg ow0jj6yyooy is doubled?

  02.14: An intrinsic property of matter is one that does not depend on the quantx)x:nwe7 cu3 fu uk(7uity of matter present. Which of the following properties is NOT an intrinsic 7 (ufk xnx)ew u:37uucproperty?

  04.16: A 20 kg boulder rests on the surfacw5s nvbx53fa( b2nh. e q8+75 uunduone of the Earth. Assume the Earth has mass v85w.n5 a3+bn(uun hbo572qs ndfuxe $5.98 \times 10^{24} \; kg$ 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 ist;+6 uybqi*dnu2wr 62m 6wa f1ruspb( in free fall near the surface of the Earth. What is the magnitude of the gravitational fot 66uw*r irn126bqb (f;uys+wdupa2 mrce 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 accelerrrdv;.q;(r6 y4xac 4 2qng4gpnk4wq iation decreqpx ni(v;n.r ya24w 4q;grr4q 64kgcdases?

  00.11: A certain particle undergoes erratic motpp2kz5n g1p )oa1x f :1vl*k94azs sgtion. At every point in its motion, the direction of the particle’s momentum is ALWA1pzzf*akt2n95g1:)g sp1o 4lkv apsxYS

  17.14: A block is suspended in the air at the end of a string held b 0bjtilyu8u.7y a person. The person pulls on the string uniformly accelerating the block upward for a short time. During this time, which one oft7j8lui y. bu0 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 fobaa/ qntya cksu;b+ezvfi : wv+*,6(dnj9o0(llowing situations is the net force constantly zero on the objbqd0n, (/sakfvjv+;* bce y9 (aiw +antu6o: zect?

  13.28: An object is in free fall cllg8 gwx;yq1/-ch/f -x7okw p5yz okp/ose 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 magniq xy/k- 5zk8g/wp x1colp hf7 wyo;/g-tude of the object’s acceleration is a and the magnitude of the acceleration from gravity is g.

  98.03: An object in eid 3hez9p)fk0 quilibrium has three forces, F1 of 30 N, F2 of 50 N, and F3 of 70 N, acting on it. The magnitude of the red03f)eikhp z9 sultant ofF1 and F2 is

  01.07: A force of 6 Newtons and a force of 10 ne:8fp x/::zismz djl 3bwtons can be combine to form a resultant with a magnitude :l8szzm3:b: j pfid x/of which of the following

  10.06: Which of the following statements is most mcdmb c ;k+9e6)jqiw7closely associated with Newton’s Third Law ofkejbi wm+ ; c6c9q7m)d Motion?

  95.06: The reaction force does not cancel the action force becon05zwgq+3pe 4*q:x dm.ix; ,zctzdcause:

  14.14: A box rests on the flo qn4hxde(gx5/g:1q icc/2ul zor 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 acting on the box by the(/xnq:1xihl/ uzc g5deqg42 c Earth?

  15.15: A skydiver falls downward throug d :j9dk6dlw l4)8pc8 ufpy76go i5pvxh 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 skydiwdj848) 5x cl uv6pg9 6kp ylpo7d:fidver during the fall?

  06.08: A baseball is thrown by a pitcher with a speed of 35 m/s. erf*:w k 9q-wosigb/dyd;0 5 ce v)e/h The batterswings and hits the ball. The magnitude of the force that the ball exerts on t: efseohi y5ge0*/9wrd c-w)/ q; vbkdhe bat is always

  11.13: A physics book :,czv fwckyt.8hz 0x5sits at rest on a table. On top of the book is a calculator, also at rest. Which one of the followinv8ky : 5.ch0tc,xf wzzg 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 I class w06smc dm+w .t2t -emttt,ii9kere in lab conducting an experiment related to Newton's Second Law. The collected data were displayed cmi,twsit0dm2+t .6t m e9tk- 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 zb 3fesd03hl ki0c6z0l6 juj4doubled while at the same time the mass of the object was halved,then the a4euik z 60lh0z3djcb0 3j 6lfscceleration of the object is

  96.15: A car whose mass is 1500 kg is accelerated uniformly fromh0fhn6 it ki; 4ne,lv 3dud*)c rest to a speed of 20 m/s in 10s. The magnitude of the v4 h, et0ld ch*n;ndk3ui6i)fnet force accelerating the car is:

  99.05: A tractor-trailuljtlvs)5z7u0 i4m2gd4 1l brer truck is traveling down the road. The mass of the trailer is 4 su0ir5 j4 g)mzldl4 b luvt127times the mass of the tractor. If the tractor accelerates forward, the force that the trailer applies on the tractor is

  99.16: Which of the following principle szto6 5-ijl.vx5av;w0hi 0;0 jtm clqs best explains why large tractor-trailer truckczh; x5j00v olwi .5m-0lst;iq ta6 jvs generally accelerate much more slowly that automobiles?

  99.19: A 50 kilogram skater at rest onhprzb/ *j0zm( a frictionless rink throws a 2 kilogram ball, giving the ball a velocity of 10.0 m/s. Which statement descrp*h z(rjmbz/ 0ibes the subsequent motion?

  00.13: An object near the surface of the earth with a weighdbc-;6db.ka yt of 100 newtons is accelerated add- kbb; .a6cyt $4\;m/s^{2}$ . What is the net force on the object?

  98.25: A car whose mass is 1200 kg is accelera5beau0eac4 a 0ted from rest by a constant force of 2400 N. What is the speed of the car 8.0 suaca5ba 40e0e after beginning?

  98.32: A 3.0-kg blockyp6b v lnw61.sqh*vw ; with initial speed 4.0 m/s slides across a rough horizontal floor before coming to rest. The frictional force acting on the block is 3.0 N. How f6hv b q.l1swp;ny *wv6ar does the block slide before coming to rest?

  95.38: A block with initial velocity 4.0 m9 lqi l+(v ivpj46n31uwhw;s q/s slides 8.0 m across a rough horizontal floor before com3;v jhn6+uw 1l(wis4 pq9ivql ing to rest. The coefficient of friction is:

  09.21: A 20.0 kg box remains at rest on a horizontal surface while a xtrje6i x namby r ;*3ypp,2+1person pushes directly to the right on the box wixb31,+ntmyaxp 2ryrpe*; i 6j th 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 peqy: r:i,f0+ +z*ytq porg1 wmoving at 8 m/s accelerates uniformly to rest on a horizontal surface. The block travels a dis0qo+py,i1*:y f +tgqzrw:erp tance 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.3hz,m / vnuey slides across a patch of ice at a speed v with its brakes locked. It then hits dry pavement a3u./hyz emv,nnd 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 mass of 2m, it would have skidded a distance of

  00.22: A car of mass m slid8qb;5kngw04gpj +y ehes 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 kineq+kjn8g54p;wb0 yhe g tic 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 h5aw c fi qfe6f4.)xg-makes an emergency stop by slamming on the car's brakes and skidding to a stop. How far would the car have skidded if it cfg6f.exq-)5fw 4 iha had been traveling twice as fast?

  99.39: The driver of an automobile must carefully control each of the foldbk42ool2;,zxl g3m j lowing devices. Which of these devices can4k,mz 2l 3o;gl dojx2b 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 1;qig,i syifv x:g4;+ k5000 newtons is 24000 newtons. About how much time is needed to increase the rocket :gfgi,i ivs +4qyk;;x ’ speed from 12 m/s to 36 m/s near the surface of the Earth at takeoff?

  07.21: A box slides to-y+p kqpr/jhy4/v i 1sj1(wdx 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 force M to the left, which is half as lw1xj(p/ jpiyv sk-d+4hy1r/q arge 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 coasterw,wfel+( mnr0.iadp6 tracks of equal length. Assume that on all fpew i+m n.,ardw0(6ltracks 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 below shows three roller coaster tracks of equal leng 4sarywo( 8z-i(/cgjw)3h qd ath. Assume that 8 o sjiwc)zd4/r 3(a(ag-whyqon 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 friln ;p1 pku j;qj(ql1*rctionlessly along the curved track from point A to point C under the influence of gravity. What would be1(lujpqjp* ;q n1rk;l the direction of the cart's acceleration at point

  02.40: A box with a mass of 50 kg is dragged across the):/7.s ip-o fn3hbel.;fi l5 li,: fpcexkp qt 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 on the rope if5h7ifps i/ letpbl.k-: ; op.nfe,3c)qil:xs required to move the crate at a constant speed of 20 m/s as shown in the diagram?

  04.40: A 6.0 kg blockh 8e3xxmwg+d ) initially 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 frictd wxg38xmh +e)ion 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 lv+2uod sunnsbb (rtr6 3ozod)t :+* :tawn mower across 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 magnittst:+szd*:2rnd(r) uou3n6bt + obvo udes, W, f, N, P is CORRECT?

  06.14: A book leans against a craotq eju0c:6/ w0 ky :qc*o9klate on a table. Neither is moving. Which of the following statements concerning this situation is CORRojue0 t6ca 9c*qo0kwyl/q ::kECT?

  06.15: A crate of toys remains at rest on a sleigh as the sle zq7 7;ocph;2f5feysa igh is pulled 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 speedao2y57f c7qh; ;ezpsf up the hill?