99.36: What happens to the inertia of an object when its velocity is doubler:s5pfg q)t w:d?

  02.14: An intrinsic property of mat)d.l t),cim;pm5m (mx uq,c mdter is one that does not depend on the quantity of matter present. Which of the followi m.li)ddcmu5(mq)pm ;tmx,, c ng properties is NOT an intrinsic property?

  04.16: A 20 kg boulder rests on the s6p. xel0y 3we b(i qcnxvp8b;h3u4z -jww 00equrface of the Earth. Assume the Earth has mas;hqpe8w0qyu0ew xib3 46z xn wp 3.vc(-leb0js $5.98 \times 10^{24} \; kg$ 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 nearf)c,+*5 d i bodqbsw gq473wdi the surface of the Earth. What is the magnitude of the gravitational force acting on the earth by the sphere? Thqwd 5 d4db,+isf) *bcg37 oqwie Earth mass is $5.98 \times 10^{24} \; kg$ .

  00.09: Is it possible for an object’s vegkuu/2(a6q-dba07lzs n v n1plocity to increase while its acceleration decre s6-n/ qn 1kgu07luda2bz(vapases?

  00.11: A certain particlj j ur9f7v 8dyp-o:k9k8,yq pge undergoes erratic motion. At every point in its motion, the direction of the particle’s momentum qp7:y-9 fdo8g 8jpkuv,9kjyris ALWAYS

  17.14: A block is suspended in the air at the end of a ss3et(nro l- 0ttring 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 choices correctly identifies the Newton’s Third Law pair force to the force of the strtl o(0-netr 3sing on the block?

  07.18: In which one of the following situations is the i-h7 mer, q a8ct.fy5xnet force constantly zero 7f qty,aec hri5x8m.-on the object?

  13.28: An object is in free fall close to the ground. A ts. ww.oasoo-s2 ij4* person intervenes and slows the object uniformly to rest. Which o2.o 4aso w* tsjiw.os-ne 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 equilibriumf gn+ ,upu 8uq/s8ukk( has three forces, F1 of 30 N, F2 of 50 N, and F3 of 70 N,g/ku8,+ su(fu p qk8un acting on it. The magnitude of the resultant ofF1 and F2 is

  01.07: A force of 6 Newtons and a force of 10 newton.y ept7) s2+qnt qsm5 jz5enm)s can be combine to form a resultant with a magnitude of which of tq57z)mt y jtq pe nss)+nem52.he following

  10.06: Which of the following sb0 p*e xmicr(4/a zd+wtatements is most closely associated with Newton’s Third Law of Motion?cib*0dr (m pzwex 4a/+

  95.06: The reaction force does not cancel the action force becauetgfkh o vr*eo,6 ;8z7se:

  14.14: A box rests on the d,u2,fe* r0mcr wdp 8vfloor of an elevator. The elevator is accelerating upwardudv,8 dpe* 0 ,2rcrmwf. 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 Earth?

  15.15: A skydiver falls downward throu8zo 8ka- v/xhl/g.zxb gh the air with constant speed. Which one of the follo8zgvxlo .b8-/kahx /z wing 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 pguph*hp b.owlg4d5m 7,w3p/3t eou;mitcher with a speed of 35 m/s. The batterswings and hits the ball. The magnitdh4 wpe. ;*gh3mg uw/ l ,3pp75booutmude of the force that the ball exerts on the bat is always

  11.13: A physics book sits at rest on a table. On top of the book i :+hc:tdygge rts 4x7g)k 0w+os a calculator, also at rest. Which one of the following choices is the Newton’s Third Law pair fgg7+thw +:gd 4 0ytesx) c:rkoorce to the force that the table exerts on the book?

  05.06: The students in a Physics I class8ev q6. 4fi9an1v 8yv x2lnzxj were in lab conducting an experiment related to Newton's Second Law. The collected data were displayed on tv 1zv q8n84 ylx2v axfjn.ie96he 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 m895y ; axr)orwlxh8a time the mass of the object was halved,then the accelera5 lxm;r)xh8ayw o 9r8ation of the object is

  96.15: A car whose mass i2;h ;c aiiguc3awp1 z:s 1500 kg is accelerated uniformly from rest to a speed of 20 m/s in 10s. The magnitude of the net force acceleruc;:;p i ca1giwah 23zating the car is:

  99.05: A tractor-trailer truck is traveling down the road. Th*6bqn b uec v2fou14bys3,0 gxe mass of the trailer is 4 times the mass of the tractor. If the tractor accelerateb2vbs4 ubf0,qc gu*eony3x1 6 s forward, the force that the trailer applies on the tractor is

  99.16: Which of the following principles best explf v;8ysz-h az:ains why large tractor-trailer trucks generally accelerate much more slozy8f sa:- ;vzhwly that automobiles?

  99.19: A 50 kilogram skater at rest on a frictionless rink throws a 2 kilogtog7l wu;(xe :ram ball, givin t; xgu:oe(7wlg the ball 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 newton4t fysg +1uh1xs is accelerated atg fsxu1 4yht1+ $4\;m/s^{2}$ . What is the net force on the object?

  98.25: A car whose mass is 1200 kg is acceleratrvuapv7 2 q7q+ed from rest by a constant force of 2400 N. What is the speed of the caur 277qav pqv+r 8.0 s after beginning?

  98.32: A 3.0-kg block with initlq,c*x iy /5pf17e4fduw iq k0ial speed 4.0 m/s slides across a rough horizontal floor before coming to rest. The frictdflq,fp1 euky *7c0 i4/xi qw5ional force acting on the block is 3.0 N. How far does the block slide before coming to rest?

  95.38: A block with initial velocity 4.0 m/s slides 8.0 m across a uew:p2ucrl z 2;y d.:rrough horizontal floor before coming to rest. Th2c:;yepr.luwr ud z:2e coefficient of friction is:

  09.21: A 20.0 kg box remains 3,gr4oaqu t :fat rest on a horizontal surface while a person pushes directly to the right on the box with a force of 60N. The coefficient of kinetic friction between the bog3 ra4fot, q:ux 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 unifoqiva( :;bm06t8efoyg:q6q nurmly to rest on a horizontal surface. The block travelq6qfyn(;m gbt :0uea68v:i oqs 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 0:a mo2iy3t2rl slp b6slides 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 kinetic friction between the tires m3ailybl 6p2:t0so2r 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 acrosso7x r7iw, o5 8q *5pgn9lhnl*)gznzg h a patch of ice at a speed v with its brakes locked. It then hits dry pavement and skid7nggho xlo5 zpniwzr5*lq7gn 9 *h) 8,s 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 the cb39vmh,7gd gopdu 1l5 ar's brakes and skidding to a stop. How far wou95 1ldvmu,d hopb g3g7ld the car have skidded if it had been traveling twice as fast?

  99.39: The driver of an automobile must carefully con:*ck.)zxe auntrol each of the following devices. Which of these devices can cause an accelerat*cn e z:.au)xkion in a moving car?
(1) the break pedal ( 2) the gas pedal ( 3) the steering wheel

  00.25: The net force on a rocket wik)z kmd2k :vgv d::hh2th a weight of 15000 newtons is 24000 newtons. About how much time is needed to increase the rocket ’2)m hkg:2dvdhkv:kz: 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 h(-z 3c6kf svkcorizontal 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 force T. Given that there is friction f and the box accelerates to the right, rank the sizes of these3fksccz v6(k- three forces exerted on the box.

  02.27: The diagram bk 2q lf46ad*mwelow 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 ov* m46 kwdfqa2ler 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 sh8yzo9*epqc im 9 k2ny6ows three roller coaster tracks of equal length. Assume that on all tracks the roller coaster carts st8nc6m 29zq9 opyi* keyart 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 frictionlez7dgl6d(is0 x+x i(p m / kf3jit7jtl(ssly along the curved track from point A to point C under the influence of gravity. What would be thexjmdx i(zi(7i / 63t+0kfdlp ls g7(tj direction of the cart's acceleration at point

  02.40: A box with a mass of 50 kg is dragged across the floor by a ropem;levc5g,ciq itv.c5 e2 c//wo jj9 o5 which makes an angle of 300 with the horizontal. Which of the followi5covm 5j9qvcwg.j ci5 e/2/,it;ol ceng 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 initially at rest is pushed against a wall by a 100 N f+ *)r0lvknun m3e av9qorce 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 blokm )0r+alnen3v*9vq uck after a time of 1 second?

  05.10: A homeowner pushes a lawn mower across a horizon2s +e: qgzopi0tal 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 magniie:+q2 oz0gs ptudes, W, f, N, P is CORRECT?

  06.14: A book leans against a crate on a table. Neither is moving. Which of d;bap 5/p:qc6 0c qssl i,j-kvthe following statements concerning this sipi5/ -d :p6q;kjvqcclbs,0as tuation is CORRECT?

  06.15: A crate of toys remains at rest on a sleigh as the sleigh is pu0zg7 b sukcq 4e6o*knc/g4d* ulled up a hill with an increasing speed. The crate is not fastened down to the sleigh. What force is responsible for t0/q * 4us ckg*k goenu64z7bdche crate’s increase in speedup the hill?