99.36: What happens to the inertia of an object when its u2v/1y 3iiq+dvu qz55c6b9g7wnir vg velocity is doubled?

  02.14: An intrinsic property of matter is one that does not depend:.w n.a ;upfjl on the quantity of matter presw ;: napjf.u.lent. Which of the following properties is NOT an intrinsic property?

  04.16: A 20 kg boulder rests on the surface ofdeme q5dub. h ,.pat0a;ee29a the Earth. Assume the Earth has masmtb;a e .dq0d2 ,pe.ae5heu9as $5.98 \times 10^{24} \; kg$ 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 fal gkh th6mjd zy96)fj :(dpag//l near the surface of the Earth. What is the magnitude of the gravitational fojmz/)( hty dgfd9j g 6:ap/6khrce 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 inadg*yp,r1) (l8 r2z gjziw w;icrease while its acceleration decre,)1gaiw z( 2 ;g8i*rpdlyzwrj ases?

  00.11: A certain particlemx ky13j.4 7 xwqnkfwe-55pow undergoes erratic motion. At every point in its motion, t5 w 1 mxewyk5qwx-oj7 nfk3.4phe direction of the particle’s momentum is ALWAYS

  17.14: A block is suspended in the air at the end of a string held by a perso3c dgi..2s xupn. The person pulls on the string uniformly accelerating the block upward for a short time. During this time, which one of the following choices corr.cip 32dxu. sgectly 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 0mbskiw.4ozx) i2ja0 is the net force constantly zero on the okj bsz20 wm4 0aiiox.)bject?

  13.28: An object is in free fall close to the gr7; rro/:(dcv :t0e:j gea veb0kmo/lgound. A person intervenes and slows the object uniformly to rest. Which one of theo/tc/e vor::e g k7ar dme:jv;(0bl0g 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 equilibrium has three forcblza+)9lsw v/es, F1 of 30 N, F2 of 50 N, and F3 of 70 N, acting bsv)l+9 wz/l aon it. The magnitude of the resultant ofF1 and F2 is

  01.07: A force of 6 Newtons and a force of 10 nmp s;i h:1k 6zax*bln13 gu7tlewtons can be combine to form a resultant with3 nx1slu* hipkaz7tbg1:6lm; a magnitude of which of the following

  10.06: Which of the following statements is most closex773myt / / pog(t30ilukdtjzly associated with Newton’s Third Law gl7ok/ttmy7u j3/z xp i3 td0(of Motion?

  95.06: The reaction force d i(diydta* t./8eiu 1eoes not cancel the action force because:

  14.14: A box rests on the floor of an elevator. The elevator is aglmcjg7pp2; ;ccelerating upward. 27g;g pjc;mplWhich 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 fall2ty,)f ap,ta bs downward through the air with constant speed. Which one of the following choices correctly describes the Newton’s Third Law pataytf, ab2, )pir force to the air resistance acting on the skydiver during the fall?

  06.08: A baseball is thrown by a nv,u ((*pb*etq-7bonl- h tygpitcher with a speed of 35 m/s. The batterswings and hits the ball. The magnitude of the forty-, nblho*((eug-bp7n q*t vce that the ball exerts on the bat is always

  11.13: A physics book sits at rest on a table. bk/ 5)xdty hqzm jqq:8h9s;e7 On top of the book is a calculator, also at rest. Which one of the followqk7 h:t8 dz5mq;jhe9)bxs/qy ing 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*,mf l+,dn hou lab conducting an experiment related to Newton's Second Law. The collected data were displayed on thenl m,,hu*f+ do graph at the right. From this graph, what conclusions can the students make?

  99.03: If the net force on an object were doubled whilzlheyei90o oq7/ ;9bw a-jm(he at the same time the mass9 iz-wooq ay9(eb70hjm/ hl ;e of the object was halved,then the acceleration of the object is

  96.15: A car whose mass is 1500 kg is accelerated uniformly from rest to ( kye. zbnv,2(uxe8s pa speed of 20 m/s in 10s. The magnitude of the net force accelerat8zx pee nks(,2ub.(vying the car is:

  99.05: A tractor-trailer truck is trave +pnf bl*zc9w )x3i*q45rucls-m*p i cling down the road. The mass of the trailer is 4 times the mass of the tractor.cxn*-ump*p5 *s3qiib) 4cr+c9f ll wz If the tractor accelerates forward, the force that the trailer applies on the tractor is

  99.16: Which of the vf .vfx5oo 64 d b3dh3n.uzgt)following principles best explains why large tractor-trailer trucks generally accelerabghtx 6z do u5 vfv.34)fd.3note much more slowly that automobiles?

  99.19: A 50 kilogram skater at rest on a frictionless rink throww k9/av8azbizwv h :6+s a 2 kilogram ball, giving the ball a velocity of 10.0 m/s. Which statement describes the subsequent moti/ 869a+a: zibwwvz hvkon?

  00.13: An object near the surface of the earth with a weightt dm:dcnl-2k 4 of 100 newtons is accelera 2k-4 cmt:lnddted at $4\;m/s^{2}$ . What is the net force on the object?

  98.25: A car whose mass is 1200 kgs-o631dcc,h(e k h qaa is accelerated from rest by a constant force of 2400 N. What is the speed of the car 8.0 s afth1hk o,-sae qcd(c63 aer beginning?

  98.32: A 3.0-kg block with initial speedp543 onniffp7 4.0 m/s slides across a rough horizontal floor before coming to rest. The frictional force acting on the block is 3.0 N5fpi43nnpfo 7 . 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 rough horizjo3yos*jtz k*vs f/04sru 1 f6ontal floor before coming to 0okf3f **/szy4 sj1rv6sjtuo rest. The coefficient of friction is:

  09.21: A 20.0 kg box remains at rest on a horizontal surface while a perso6orr2 cm;7kg pn pushes directly to the right on the box with a force of 60N. The coefficient of kine 2rcmpogr7;k6 tic 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/-5.1vmb2cdrm: c y pmcs 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 chv b-c 1mm .mc:dyp2cr5oices best represents the coefficient of kinetic friction between the surface and the block?

  00.21: A car of mass 5lf5klg f:wo 9m slides across a patch of ice at a speed v with its brakes : gwolk 9ff55llocked. 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 .
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 speed v with6q7 :hc (60yisnluwee its brakes locked. It then hits dry pavement and skids to a stop in a distanced. The coefficient of kinetic friction between the tires anw06(l: suc ei7hqey6 nd 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 makezby khzn )7cirr c2hm-6g,,4hs an emergency stop by slamming on the car's brakes and skidding to a stop. How far would the car have skidded if it had beecgy4-h ,mb2c ,krr hzzh )6in7n traveling twice as fast?

  99.39: The driver of 1,hmy fb ;of ,si:swi+an automobile must carefully control each of the following devices. Which of these devices can cause y ,o1s+f:mwfhb,ii s;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 v1l qlf6kfpen:/u5 jmd);y 0okhqgxa5-:tf3 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 36 m/s near the surface of mp1 gqfl0dvjex6 ut-/3o:: n kk5ylf)h a;qf5the Earth at takeoff?

  07.21: A box slides to the right across a horizontal floo:1x:jzumtul 1gt co 76r. A person called Ted exerts a force z17o:6 tucm 1tulj: gxT 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 these three forces exerted on the box.

  02.27: The diagram below shows three roller ca -x(c jf+vko1j )aep+oaster tracks of equal length. Assume that on all a ok ejapcjv+(-x )+1ftracks 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 626kmoc,oq t-rmf8/2i n8 rvur w ;wgzroller coaster tracks of equal length. Assume that on all tracks the roller coaster carts start from rest at the same el cun862 6rzo,wi2m rf-wt rqgov; k/m8evation 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 along the curved track8wv 1/c9sdfhvn(e 1ci from point A to poinvd c i vhe1cf9/8ns1(wt C under the influence of gravity. What would be the direction of the cart's acceleration at point

  02.40: A box with a piv lqj0s;z zgw o2-t;m ;*-qjmass 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 on the rope is required to move the crate at a constant speed of 20 m/ssj zg ;q;pjql*i-;0tz- mw v2o as shown in the diagram?

  04.40: A 6.0 kg block initially at rest qon9onkf 3 xyp o s)9)q74:vciis pushed against a wall by a 100 N force as shown. Thecoefficient of kinetic friction is 0.30 while the coefficient of static friction is 0.50. What is true of the frictiy:9v) oxq s4nqc3 o)io9pnf 7kon acting on the block after a time of 1 second?

  05.10: A homeowner pushes a 0vq3yd82ds4gsg; a po lawn 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 o;3adgs0v4oq ys 8p2d gf the following relations among the various force magnitudes, W, f, N, P is CORRECT?

  06.14: A book leans against a crate; +mha8upt5jc on a table. Neither is moving. Which of the following statements concerning this situation is CORRECT? jhmuc ;a +tp85

  06.15: A crate of toys remains at rest on njgu;t8s54v0lqk1awa sleigh as the sleigh is pulled up a hill with an increasing speed. The crate is not fastened down to the sleigh. What force is responsible for 5t;8vs 410l nqjwuag kthe crate’s increase in speedup the hill?