99.36: What happens to the inertia of an object whwu+m vth0o8e *g1tk3hen its velocity is doubled?

  02.14: An intrinsic property of matter is one that dovcq*( 3 n t5+vrbkyhz(es not depend on the quantity of matter present. Which of 3q bvnvh+t (yc (*rzk5the following properties is NOT an intrinsic property?

  04.16: A 20 kg boulder rests on the surface of the Earth. Assume the Earnxhec0nrkw)cp8 f.1* th has mass f 8 p1rwh*kc0xen).n c $5.98 \times 10^{24} \; kg$ 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 thevk1b) p/v tok5k qaj)+ Earth. What is the magnitude of the gravitatiop v)jtoq/1vkk+a ) 5kbnal 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 oi4tpg 4rr4soj th18. w925 zshca*p zcbject’s velocity to increase while its acceleration decrctwg 4 c8zr4ipph ro 924a5s*s.hzj1teases?

  00.11: A certain particle un ydk 7kmdn;0-3ncjd u2dergoes erratic motion. At every point in its motion, the direction of the particle’s momed 27-;dkn3ymk0 jdunc ntum is ALWAYS

  17.14: A block is suspended in the air at the e1a -f) .yocfsknd 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 identifies the Newton’s Third Law pair force to the force of the string on the block1)s faco y-f.k?

  07.18: In which one of the follo kk3-e2cpnya2 wing situations is the net force constantly zero on ta2kky 3n-c2e phe object?

  13.28: An object is in free fall close to the ground. A perso i c7 5:wpo8.nfbdsskf3mh:6h1w:o u yjzs ;y:n intervenes and slows the object uniformly to restduhbnho:iss6ff;y. zk:p:wo:81ym37w sj c5. 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 the magnitude of the acceleration from gravity is g.

  98.03: An object in equilibrium has three forces, F1 of 30 N, F2 of 50 N,4q qu2 wgyd2l5 and F3 of 70 gd2u5 qyql4w2 N, acting on it. The magnitude of the resultant ofF1 and F2 is

  01.07: A force of 6 Newt2 eu-v 5un.umx9 cira3ons and a force of 10 newtons can be combine to form a resultant with a magnitude of which of the 39.uun 5vcmxae u2r-i following

  10.06: Which of the follocj 1hs,y:x-a uwing statements is most closely associated with Newton’s Third Law of sc:j 1 au,xh-yMotion?

  95.06: The reaction force doeseiye),aq j)76kmcs) n-kc6 u u not cancel the action force because:

  14.14: A box rests on the floor of an elevator. The elevator is accelerating upwzd) ,d-b1/mv dysf .mtard. Which one of the following choices best represents the Newton’s Third Law pair force to the gravitatiofd d/ds mvbm- z.)1,ytnal force acting on the box by the Earth?

  15.15: A skydiver falls downward through the air with constantj )+fy0.rgw n :kmx,akmn 8up;+kp6cl speed. Which one of the following choices correctly describes the Newry06 j f ,l.+; 8wkc:mu)gn+kmxnppk aton’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 of 35 m/s. The batterjqbs9;*dc e;gswings and hits the bcedg;9j bsq;* all. The magnitude 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 ucgol 5 + zdero3,yg:*pco0v*is a calculator, also at rest. Which one of the following choices is th0 d*3c o g+opluo,zervy5gc*: e Newton’s Third Law pair force to the force that the table exerts on the book?

  05.06: The students i6lflhme xfeqk;gr t*:.1 t9(z n a Physics I class were in lab conducting an experiment related to Newton's Second Law. The collected data were d;1elz xtet gkq6h(fm:9*lfr . isplayed on the graph at the right. From this graph, what conclusions can the students make?

  99.03: If the net force on an ojvpf9 wk)0nx0 i-t 4skbject were doubled while at the same time the mass of the object was halved,then thes0 xi0t9)-kpkj w4vfn acceleration of the object is

  96.15: A car whose mass is 1500 kg is accelerated uniformxzok . 3oa:1-cjshx )wly from rest to a speed of 20 m/s in 10s. The magnitude of the net force accelerating k .hw-ocs1x xao)jz3 :the car is:

  99.05: A tractor-trailer truck is traveling down the road. The mass of the traics /vgu3 mwgs 7:2*rjxler is 4 times the mass of the tractor. If the tractor acmc:s vw3s*xug gjr 7/2celerates forward, the force that the trailer applies on the tractor is

  99.16: Which of the following principle1cd d61g*:mqgg(kqj,m ozxx* s best explains why large tractor-trailer trucks gener61 *q:gg *1mdgmq x,dojzx(ck ally accelerate much more slowly that automobiles?

  99.19: A 50 kilogram skater at rest on a fd(xzuz3ds.of z nw: 30rictionless rink throws a 2 kilogram ball, giving the xs(3wozu f3 :ddnzz0. ball a velocity of 10.0 m/s. Which statement describes the subsequent motion?

  00.13: An object near the surface of the earth wwxx d ak)udd9vfd,52; )n(e acith a weight of 100 newtons is accele(;,dk)cxwdx 25 df nua v9ad)erated 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 re z9j,)e3iv(zrg d6*q j5eauot st by a constant force of jui9g6qj o )ve*zt (3,5dza er2400 N. What is the speed of the car 8.0 s after beginning?

  98.32: A 3.0-kg block yq7 5: d(ea1 hldvli+ewith initial speed 4.0 m/s slides across a rough horizontal floor bea:7+ye (elq 1idd5v lhfore coming to rest. The frictional 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 sligx5a-go3pi f6sz 7;jides 8.0 m across a rough horizontal floor before z7 g-ip53 sgf6iao;jxcoming to rest. The coefficient of friction is:

  09.21: A 20.0 kg box remains at rest on a horizontal surface while a person pfwr)kht 1gp -8ushes directly to the right on th)r1-kf8 wtpg he 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/bjj:q)ta-q (sj 3(dvo84sl 8idem6 krs accelerates uniformly to rest on a horizontal surface. The block travels a : sret88( io lmvj )qjqdbad(3sj-k46distance 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 slides across a patch of ice at a speed v with its brakqt3 p/y886f:by svkmhes locked. It then hits dry pavement and skids to a stop in a distancebyy s8 qp3tf6 k:/v8hmd. 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 acjy/k( 4k +mdonross 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 coefficie4k oy(+kjn/m dnt 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 brakenl1 9 5furpzvn)hh /3,fihrh 1s and skidding to a stop. How far would the car have skidded if i9/un,z h53fhv 1pr)f hh lri1nt had been traveling twice as fast?

  99.39: The driver of an automobile must carefully co s(dbfexhod,- n67m v-ntrol each of the following devices. Which of these devices can cause an accelerah,o-7f -vd 6 (ebxdsnmtion 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 newtjvwx y0uv 0y +paq95a0ons. About how much time is needed to increase the rocket ’ spe payyj00 waq vx0vu+95ed 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 zmw9lq*oul +1sl9 rf;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 force l9u1 rzqfwlo9*+ slm;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 beloi+z3 m9 py- gut-c/xjaqwj03mw shows three roller coaster tracks of equal length. Assume that on all tracks the roller coaster capq/w 0cmx+39iyjj-ta-3mg zurts 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 length.jjt d)+bzb) 4p Assume that on all tracks the roller coaster carts start from rest at the same elevation and) )bjb 4jt+dpz 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 the4hq /mlkufw o* ed94k de+d8w5rl w8,y curved track from point A to point C under the influence of gravity. What would be the direction of the cart's acceleration5owlk qu4* 4dwl9d,mykfe+8ed r8 /wh at point

  02.40: A box with a mass of 50 kg is dragged across the floor by a rope wky69) zy2bhfo hich 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 ay6 fh2byzo9k) 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 foxse /: wfss uxpq5-2e*rce as shown. Thecoefficient of kinetic friction is 0.30 while the coefficient of static friction is 0.50. Wu* : x-esxps25qsef/w hat is true of the friction acting on the block after a time of 1 second?

  05.10: A homeowner pushes xh2 8lz+tj8jia lawn mower across a horizontal patch of grass with a constant speed by applying a force P. The arrows in the diagram correctly indizt 8+j ihl8jx2cate 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 CORRECT?

  06.14: A book leans against a crate on a table.)k)o d ;; zsm*oo8f0e/y vcjso Neither is moving. Which of the f)se zfok;oy0 ; )8o*jvd/moscollowing statements concerning this situation is CORRECT?

  06.15: A crate of toys remains at rest on a sleigh as the sleighowo; trpq4 he(ptv52 * is pulled up a hill with an increasin (opq2pvt;r5oh 4we*tg speed. The crate is not fastened down to the sleigh. What force is responsible for the crate’s increase in speedup the hill?