99.36: What happens to the inertia of an object wgv--;: jh qebrhen its velocity is doubled?

  02.14: An intrinsic pg/cl- rfu -kk9j1n4t:nd dz *oroperty of matter is one that does not depend on the quantity of matter present. Which of the follddk4n*-z: lt r1unk9j/-ofg cowing properties is NOT an intrinsic property?

  04.16: A 20 kg boulder rests on the surface of the Earth. Assume the8b 2bry4xdu9,i1 cydh)qo u2g Earth has masb9u4y)d b d1g 2,y8icuxro2qhs $5.98 \times 10^{24} \; kg$ 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 ne .zc3, hklq1 c0* nvj:t5aqlkrar the surface of the Earth. What is the magnitude of the gravitational force acting on the earth by the spherezjr,:k*k l qc3 cn 1.h05qvalt? The Earth mass is $5.98 \times 10^{24} \; kg$ .

  00.09: Is it possible for an object’s velocity to increase whileeud .-e3cv1/0dil2sme z:brckybz0 + its acceleration decreasess3.eebk+:1lyd0 0 ce/i z2-vdcz rbum ?

  00.11: A certain particle undergoes errat 9m5e:gfqeb2gy z;. lxgk;9 stic motion. At every point in its motion, the direction of9esfb t;5y:.l2 egx;zgg 9mq k the particle’s momentum is ALWAYS

  17.14: A block is suspended in the air at the end ):x zednh9r01qy 5zjqq kp l9+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 choices correctly identif qzzn):9d1 9e0ykrx5qjq h+lpies the Newton’s Third Law pair force to the force of the string on the block?

  07.18: In which one of the foll 9 n(xa cz+s,e2tszb3kowing situations is the net force constantly zero on thec +zx32ksa9ntzbe (s, object?

  13.28: An object is inr z ,itsnhn4 )m9i /hve9v96fj free 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 tv4riie j,6z9m/n9)n hsvhf 9acceleration 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 equilibrium has three forces, F1 of2p z+ymzu lwa.4+nd.1wz;ol /+u ecaobq:6yq 30 N, F2 of 50 N, and F3 of 70 N, acting on it. Theyw+ o d;yo 6/ezwu:b1a4q.2l p++.nu zaq mzlc magnitude of the resultant ofF1 and F2 is

  01.07: A force of 6 Newtons and a force of 10dvofo0 +8jg7f (uvp 8el; ku+ld8vxe* newtons can be combine to form a resufekjddv+(uolev x; lu +o 8*p808v7gfltant with a magnitude of which of the following

  10.06: Which of the following statements is most closely associvx)-k n5jgu ek(j(:(w v.xaey ated with Newton’s Third wev(.egx :j x(5 y(kn akujv)-Law of Motion?

  95.06: The reaction force doesmt1p 6q*k5u5 rgq3vgo not cancel the action force because:

  14.14: A box rests on the floor of an elevator. The elevator is acceid8q 4s sjbt8h4d-,iqlerating upward. Which one of the following choices best represents the Newton’s Third Law pair force ti s ,- 8bsd4h8q4dqjito the gravitational force acting on the box by the Earth?

  15.15: A skydiver falls downward through the air with constant speed. Which o/ ncvt *i-rb yduu-5w)ne of the following choices correc i5)-*v dbny tu-wc/urtly 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 pitcher with a speed oahqxh x k3vpm,/qay3g7.- 4 el)/ qaqkf 35 m/s. The batterswings and hits .)kq,a /a7 3px3lxgykqh a 4v-qm/h qethe ball. The magnitude of the force that the ball exerts on the bat is always

  11.13: A physics book sits at rest on a t5cvfx 0 kbch/7s qb;p9able. On top of the book is a calculator, also at rest. Which one of the fol k 9;fcbbv0c75x hqp/slowing 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 were in la9v:/zk :qsy0 m6rfua1 tsafu 3b conducting an experiment related to Newton's Second Law. The collected data were displayed on the graph at 3 s/tkfu0arm:ysqu z9va1f6 : the right. From this graph, what conclusions can the students make?

  99.03: If the net force on an object were doubled while at tgq0/y5 5 mlc5 alwngy,he same time the mass of the object was halved,then the acceleration of the 55lmygnq law, y0/ g5cobject is

  96.15: A car whose mass is 1500 kg is :ahs r-ee,mt*j mok6q:ypz3 2accelerated uniformly from rest to a speed 6:h oser - *3mmk2,yep:tzaq jof 20 m/s in 10s. The magnitude of the net force accelerating the car is:

  99.05: A tractor-trailer truck is traveling down the roaz*t ztbzy46xf4 k6ih9 d. The mass of the trailer is 4 times the mass of the tractor. If the tractor accelerates forward, the force that the trailetf *4zi t96hx6zkb4z yr applies on the tractor is

  99.16: Which of the following principles bi83iw +kj(-vcd nzd7q est explains why large tractor-trailer trucks generally accelenkiv+w8 dz dq3c7-j(i rate much more slowly that automobiles?

  99.19: A 50 kilogram skater at rest on a frictionless rink t+y+qh j6io8(rn*flvsoc k:q )hrows a 2 kilogram ball, giving th *:y qvjcfo+ or8lqnis +h6k()e ball a velocity of 10.0 m/s. Which statement describes the subsequent motion?

  00.13: An object near the surface of a -qn)hb.d )jey e(1wp )wnno0the earth with a weight of 100 newtons is accelep-a0hnyqn j().)d w bwe)no1e rated at $4\;m/s^{2}$ . What is the net force on the object?

  98.25: A car whose mass is 1200 kg is accelerated from rest by a constant force nsu- spol;d/0of 2400 N. What is; o-s0/ psunld the speed of the car 8.0 s after beginning?

  98.32: A 3.0-kg block with initial scs*n9 6rhb3+wue9 crzdx ; ee9peed 4.0 m/s slides across a rough horizontal floor before coming to rest. The frictional forcewe3u +;d9x esrzn *c96b9chre 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 5ie(pe4,k l ipm across a rough horizontal floor before coming to rest. The coefficient of frictiep(4pe5ikil, on is:

  09.21: A 20.0 kg box remains at rest on a horizontalo40rn(kf::otw euxz- surface while a person pushes ::zk nowe4- tu0(fxo rdirectly to 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 u(85z wy-ur2 *rmbpitzniformly 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 represents the coefficient of kinetic friction between the surface and iw( ruz8mb py5rzt-*2 the block?

  00.21: A car of mass m slides acro 86 vd4p9ycpubss 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 kinetbpyp8 vu9c6 4dic 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 a6 jjfw+i. g;j2y ej07:mg mhxh patch of ice at a speed v with its brakes locked. It then jmmjih+j2xfy6w ghg. 7 :ej0; 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 .

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 car's bra1h *f;xr eld p4fo y(d;.kd2*gjpq9a:poza e6kes and skidding to a stop. How far would the car have skidded if it had been travepl q*z;jx(poa4o1;.*pd 29gf :rkhd6 dfa eyeling twice as fast?

  99.39: The driver of an automobile must carefully control each ofl n+ a4d e0kfllxq- 9ntwwo13: the following devices. Which of these devices can cause an acceld nle9wl +4 n0la xq:-okf1w3teration 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 15000 newtons is 24000 newtonswfxlof 3) 9)ko. About how much time is needed to i w9o)3ffokl)xncrease 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 horizonc;s; +hg+g qoytal 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. G g+s; chyg;+qoiven 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 rolst:nf0jqi :7rn; 53 eb9d.jl2e plkmiler 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 thb0nm2t iplk j5 r;ee7s:qd j3: 9lif.ne 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 shows2( unl,w oju58qjlbn*kiqf57 three roller coaster tracks of equal length. Assume that on all tracks the roller coaster carts start from nl52jq8 fo *l7u,u(wjbkqi 5nrest 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 rollerco66o2d1yww pe b zfszh. 0yxe54aster cartrolls frictionlessly along the curved track frw1hz6.d y2p5bzfw0eysoe 6x4om point A to point 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 dragk.2 sylr i g9t/gkx::9m8dqf bged 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 n b9yqg2:.g kl si8td9:f km/xrewton 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 tz );r*tad4vuus+ig* (az)jcat rest is pushed against a wall by a 100 N force as shown. Thecoefficient of kinetic friction is 0.30 while tts+ g)j;vr*aa(ctz)u4 d i*zuhe 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 across a horizontal panbo xm /dxzklpg; cw*jw,b 62l+e+u-+ tch 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 relaeod/2mx6lp+xcgj+ b-lk, u;n+w * z wbtions 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. Which:7sv7g h agho. of the following statemhgo v7gah7s: .ents concerning this situation is CORRECT?

  06.15: A crate of toys remains at 33 ve5eqzd f9+pi7ltdv3 q xvw71,j fxns5ab5rest on a sleigh as the sleigh is pulled up a hill with an increasing speed. The crate is not fastened down to the sleigh. 7,d+ 97swab3 33xniqveffql xd55 1e5ptzvjv What force is responsible for the crate’s increase in speedup the hill?