99.36: What happens to the inertia of an object wheg jqi1rz6f2 6on its velocity is doubled?

  02.14: An intrinsic property of matter is one that do6e p z0uuef3zg; ;avvpdvn8g,ess,/)es not depend on the quantity of matter present. Which of the following properties is NOT an ine; )u p06/a u8nevss3g,dzefg;v,zvp trinsic property?

  04.16: A 20 kg boulder rests on the surface of the Earth. Assume the Earth has mc0gb o6ot/k-27 ontepass o 2tp-g/nb0co6o7 tke $5.98 \times 10^{24} \; kg$ 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/6 m fdvvr2:ly is in free fall near the surface of the Earth. What is the magnitude of the gravitational force r2yvl6/f:mdv 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 acceleratbu. 79wyh v+hiion decreas+vhi9y.uw7bh es?

  00.11: A certain particle undergoes errat nwc/bv u m/34u1 m0cw+ro 4fjid0nl4zic motion. At every point in its motion, the direction of 0r03m o/w4/ 1wcd +innjuucbz lfvm44 the particle’s momentum is ALWAYS

  17.14: A block is suspended in the air at the end of a t0tjf. )ns0ycu t9:hn5j gn.bstring 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 to0fj.nn9hst nt.tygju50:)bc the force of the string on the block?

  07.18: In which one of the following sir5-0b8w9br*n v rv cwzgd z6e33zb ,khtuations is the net force constantly zero on the ovcg8bkr*zz5- drr wv 90b3nwb,3he6 zbject?

  13.28: An object is in free fall close to the gro4)b8 o;8hngl e4tqe jzz7sqi 63rtel+und. A person intervenes and slows the object uniformly to rest. Which one of the following statements must be trueqt 8+ qszt e3l;el8r44 hzn)6i7oe jbg 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 5*c0t (rqme)wrctje(s.h 0h- wp2/ cmk0 N, and F3 of 70 N, acting on it. The magnitude of the resultant /ctrh kwmhc2-rest0p q)( j(.0m*cew ofF1 and F2 is

  01.07: A force of 6 Newtons ana1gy+m)y6 wbt6bam m 5,: ldpjd a force of 10 newtons can be combine to form a resultaa+y mg )j 5m,t6:yl1mwdpbab 6nt with a magnitude of which of the following

  10.06: Which of the following statements is most closely associated with Newttwg3 w(7bj ,wb8 n,bocon’s Third La8t,cbo bwn 3 7jw,gwb(w of Motion?

  95.06: The reaction forceim 0-iknf8r-a does not cancel the action force because:

  14.14: A box rests on the floor of an elev8 +xlv4 *r5obcly7hti ator. 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 b r c5lh8b+vt*4 7xlioyy the Earth?

  15.15: A skydiver falls downward through the air with cons, lbz 43vt ou;j vxt9kbds5*cuw*,r+itant speed. Which one of the following choices correctly describes the Newton’s Thirvckzr*jiv4,5 u txwb9to* 3;+d b,ulsd Law pair force to the air resistance acting on the skydiver during the fall?

  06.08: A baseball is thrown by ayetljq *ms6- +p6q.)-juf k cm1-nklec un98l pitcher with a speed of 35 m/s. The batterswi jnnk6 +-ty8 mm qlju1.-l6fcu e-c9lps*e)qk ngs and hits the 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 table. On top of the book is a calcula3 a0zu:bm9vw/v - dkrrtor, also at rest. Which one of the following choices is the Newton’s Third Law pair3u:rbk z rv-ad0wvm9 / force to the force that the table exerts on the book?

  05.06: The students in a Physics I class were in lab conducting an9pd8zjae l71 uno py64k sw-x/ experiment related to Newton's Second Law. The collected data were displayed on the graph at the right. From this graph, what ce9 lsnd j7w6p-y14o8p/aukxz onclusions can the students make?

  99.03: If the net force on an object were doubled whilfx5yamj25 xo ,e at the same time the mass of the object was halved,then the acceleration of th 5 xjm2yf5oax,e object is

  96.15: A car whose mass is 1500 kgc58h2u5f mu .ax 5fz9kvfpk j- is accelerated uniformly from rest to a speed of 20 m/s in 10s. The up fh-af25v95kzfc 8xmju. k5magnitude of the net force accelerating the car is:

  99.05: A tractor-trailer truck is traveling down the road. The masi*.x 0 vh28pg t7grvwzei3ll9s of the trailer is 4 times the mass of the tractor. If the tractor accelerates forward, the force that the trailer applile xiwpv zglg *0thi.973 82rves on the tractor is

  99.16: Which of the following principles best explains why large tractor-trailer jt*cqzt(: f ba9z-16r ,dt) id5piidw dzp)jc5 rta:dzi(t * tdf91,q 6- wibitrucks generally accelerate much more slowly that automobiles?

  99.19: A 50 kilogram skater at rest on a frictionless rink throws amrr tyi153budy 9vf)mj (s5c. 2 kilogram ball, giving the ball a velocity of 10.0 m/s. Which state9.y55t3brs yj1fmdcv(i ) umr ment describes the subsequent motion?

  00.13: An object near the surface of the earth with a weight of 100 newtons stl+vee3(tslefhmam4, cs ( x97h6-q is ase(m , -a(tl c+vqfh94he7l3txss6m eccelerated 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 al/mvvp)h ,e;d constant force of 2400 N. What is the speed of thmev ,d/);phvl e car 8.0 s after beginning?

  98.32: A 3.0-kg block with initial speed 4.0 m/slq(ip bx0h44o, go zr8 slides across a rough horizontal floor befor4b ro 8lq(4ox,i0g hpze 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 slides 7 7 eckmwo+i,ykr.s4r8.0 m across a rough horizontal floor be7 7mc rso ,.k4wkery+ifore coming to rest. The coefficient of friction is:

  09.21: A 20.0 kg box remains at rest on a horizontal surface while a perso7w/af2xsxi ,xf0i dh5gmrq ))n pushes directly to the2/qxxxgi,7a)i f d)r w0 m5hsf 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 accelera+p2m-tfp uv0flxr /- - kay2qetes uniformly 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 re vaq- 20mfl+ t/ypx uf-kep2r-presents the coefficient of kinetic friction between the surface and the block?

  00.21: A car of mass m slides across a pat3o +wq 7;/zfer lx0fv9hsqq u4ch of ice at a speed v with its brakes lock h0s;3qluqo f+v f74e xw/9rqzed. 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 spz/u,4bh3,n0tmy dj i eeed v with its brakes locked. It then hits dry pavement and skids to a stop in a distanced. The coefficienidt ez4ujm y0 ,,n/3bht 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 c rbuj s68 wf 4c1+johwycx/ c*pj,9a,kar makes an emergency stop by slamming on the car's brakes and skidding to a stop. How far woupafjrcjb j ,k4c*x 6w,oswh/ 8yuc9+1ld the car have skidded if it had been traveling twice as fast?

  99.39: The driver of an automobile must carefully control each of (ob o,r*7 n8eurhux1s i( pd6fthe following devices. Which of these devices can cause an acceleratiuef,1npxu(hr 6 d7*8i ro(o sbon 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 newtonsjw-iy w q*f h3i1a*i4 md)mh)a. About how much time is needed to increase the rocket ’ speed)h i3 *)fa1 i*daw4jm-m ywiqh from 12 m/s to 36 m/s near the surface of the Earth at takeoff?

  07.21: A box slides tov6 plfl q,*uv 2fdc0p zoy/se.0/ox,q 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 hal26,xqo/.l fcf vp0 z,ypq*/ vud0 olesf 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 coastqxm0q 3td 9 g-rg*/zsoer tracks of equal length. Assume that on all tracks the roller coaster carts start from rest at the same elevation and moves frictionlessly r o-3d*s qx9m zq/ggt0over 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 gp s e1z8bzv8 u3, bqw)g9dy5lof equal length. Assume that on all tracks szq, upbg8 5d8wvgb9e 3 ly)1zthe 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 carws,wnr-t(1(w*w px b p4ms my5trolls frictionlessly along the curved track from point ps ,* t(wm5sw(4ym xwrbpn1- wA 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 dragged across tn) ( f3mpl9fxgzj (z: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/s as shown in plzxmf (tj:(fg9z)3 n the diagram?

  04.40: A 6.0 kg block initially at rest is pushed against a wall by a 100 N-2te 1)nu);5vs ic xomnr(/djdqdt2s force as shown. Thecoefficient of kinetic friction is 0.30 while tjsqe( svndr1 t5 m)c i odu/2;n2tx-)dhe 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 patch of gg, h7 h;.nd7 ;mx:cnrq4vjrmsrass 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 magnitudes, W, f, N, Pg ,dh:n7x;; 4h r.mcnsjrmvq7 is CORRECT?

  06.14: A book leans against a crate hz *aqi5(szqm f8w*6yg c( )9pcrhid-on a table. Neither is moving. Which of the following state5h(i *q(m* c-swa8zpd yrifqh c96) zgments concerning this situation is CORRECT?

  06.15: A crate of toys remains at rest on a sleigh as the slg12xcf3dz cz8b8+u8jvvyv8 bm :q(tw eigh is pulled up a hill with an increasing spee8f 8v z3m z1gcyxqvc28:( dwtbv+b8ujd. The crate is not fastened down to the sleigh. What force is responsible for the crate’s increase in speedup the hill?