99.36: What happens to the inertia of an object whd j:e8 j+na jgorlqk3368e2sn en its velocity is doubled?

  02.14: An intrinsic property of matter is oa bkdcz1y0z v g0h3q;s,rmc/;ne that does not depend on the quantity of matter present. Which of the fosrbv/g1cz d m,c qz;ak30h 0y;llowing properties is NOT an intrinsic property?

  04.16: A 20 kg boulder rests on the surface of the Earth. A;hv .u w ko, pnel.ewuoly sc7lxkoe48(*/*,sssume the Earth has mass h(ookuln 7,cp 8 /vk*x*u4o,elsee s..w ; lwy$5.98 \times 10^{24} \; kg$ 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 inqx5 pb9fer2 t0 free fall near the surface of the Earth. What is the magnitude of the gravitational force acting on the earth by the sphere?5tqb ex0rf2 p9 The Earth mass is $5.98 \times 10^{24} \; kg$ .

  00.09: Is it possible for an object’s velocithcz7q1w o9,f uy to increase while its acceleration9fh7zwu co1,q decreases?

  00.11: A certain particle undergoes erratic motion. At every point in its m7ddzi(qh+q,od4vck ; otion, the direction of theovhkdid74,(qq z;+cd particle’s momentum is ALWAYS

  17.14: A block is suspended in the air at the end of a string held by a perey781-kxs xv,ph b e)kson. 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 fs8k1y-k7epxxh ), bve orce of the string on the block?

  07.18: In which one of the foy*4k;ysh9q.xuc af4 e llowing situations is the net force constantly zero on the objectkus 4hc*;yf. xy q4e9a?

  13.28: An object is in free fall close to the ground. A person inod tdhd256e8d 3 yr1nptervenes and slows the object uniformly to rest. 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 fromd38r2dd 61pthn deoy5 gravity is g.

  98.03: An object in equilibrium has three forces, 8b.9pvum z.4 chy/ j3zimr -kqF1 of 30 N, F2 of 50 N, and F3 of 70 N, acting on it. The magnitude of 4 q/imz.vy-r pz9cjkhu3m.b 8 the resultant ofF1 and F2 is

  01.07: A force of 6 Newtons and a f f;+ omwf/k5wq9g ij(korce of 10 newtons can be combine to form a resultant with a mag wkof+m(wk95g /fijq;nitude of which of the following

  10.06: Which of the following statements is most closely 6z q mwck4i0f9vs3w0dvei 7x;associated with Newton’s Third Lizq60 ;wk 37d0 esmvixcf4wv 9aw of Motion?

  95.06: The reaction force does not cancel the actil qg p,te d fe545 tel9p4tjdfp44*h2won force because:

  14.14: A box rests on the floor of an elevator. The elevator is acceleratitu8yajxudmy*u8;va(a 2. q d,74 dfrf ;zkn:png upward. Which one of theu;u. dda 28 yfnt vpk yar87f(,*4x;zq:jamu d 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 through the air with constant speed. Whi(- on2r u:0xdw dllxw7ch one of the following choices correctly describes the Newton’s Third Law pair force to the air resistance acti 0 wn2u7x(ddxl:rlo w-ng on the skydiver during the fall?

  06.08: A baseball is thrown by a pe aur6r* egwt+,- si+pitcher with a speed of 35 m/s. The batterswings and hits the bar p+-r,w6iut es gea*+ll. 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 8;5v9h ;k7uywil o j)oopwo6pthe book is a calculator, also at rest. Which one of the following choicyjwouvhpk;o;6i95l 8o7) p wo es 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 lab cond, 6b jjyww iyj wvl)3ok:-p.3mucting an experiment related to Newton's Second Law. The collected data were displayed on the graph at the right. From this graph, what conclusions can toyb w-k w,.jpjvm3y j3l6wi:)he students make?

  99.03: If the net force on an object were doubled while at the same time the ma p8rkh6jq/ k4css of the object was halved,then the/6q8 rj4p kckh acceleration of the object is

  96.15: A car whose mass is 1500 kgm )v6lws /4myx is accelerated uniformly from rest to a speed of 20 m/s ix4lmmy6) svw/ n 10s. The magnitude of the net force accelerating the car is:

  99.05: A tractor-trailer tck j:w1lb.d j.d5a68j*uxo t gruck is traveling down the road. The mass of the trailer is 4 times ja cd5utjgx k6j.*:1ol8bw. d the mass of the tractor. If the tractor accelerates forward, the force that the trailer applies on the tractor is

  99.16: Which of the following principles beznvsru - )4ez7p-( nwlst explains why large tractor-trailer trucks generally accelerate much moz )le74-r-zu n(wnspvre slowly that automobiles?

  99.19: A 50 kilogram skater at r80n.d w;ohcol2ced ,oest on a frictionless rink throws a 2 kilogram ball, giving the ball a veloc de8; no,col0d who2.city of 10.0 m/s. Which statement describes the subsequent motion?

  00.13: An object near the surface of the earth with a weight us04s 17ktx7nxkpfhn3 ar..w of 100 newtons is a nx7kut1 w347pxnr .fah sks.0ccelerated 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 forchd.cd7r i/f,fqpq r .87lov2sn4 mw -ie of 2400 N. What is the speed of the car 8.0 s after beginn -48s fimq,rchldd 2opin7 ..f7rvw/qing?

  98.32: A 3.0-kg block with initial speed 4.0 m/s slides across a rough horiz( ,a ku* sd+tg rlv;8jc/trpp(ontal floor before coming to rest. The frictional force acting o (dpc apv,r/rjt*s;8tu+gl k( n 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 r:ih 8r:luj5s3kzt9ucough horizontal floor before coming to rest. zsucru lt8:5 hikj9:3The coefficient of friction is:

  09.21: A 20.0 kg box remains at rest on a horizontal surface while a perxqu)t*m08tmr ry.xcb8p, sqo3 (+jl uson pushes directly to the right on the box with a force of 60N. Thy p8. 0mr)xu(lu,q srox +38mq b*tctje 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 initiall: xsz) l8za3rfy moving at 8 m/s accelerates uniformly to rest on a horizontal surface. The block travels a distance of 12.0 m during the slide. Which zafz8l 3)x:sr 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 patc(w75z xow od7dh of ice at a speed v with its brakes locked. (7o 7wdw5 zoxdIt 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 ac+ m6jbfwi+.q cross 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 frictiojw.if ++ qb6cmn 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 tm*rjd :-al/ flhe car's brakes and skidding to a stop. How far would the car have skidded if it dja fl*l: -r/mhad been traveling twice as fast?

  99.39: The driver of an automobile must carefully control each of the following p w0u37c8dmp /j gklq5devices. Which of these devices can cause an acceleration in a moving5 0/ukgpqlcw3p8md 7 j 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 newton7t- oyq.sal;zg-dr.krv dphr,9ex1 :s is 24000 newtons. About how much time is needed to increase the r1x;r dkrsy: de.hq p.79-v,t al gzr-oocket ’ speed from 12 m/s to 36 m/s near the surface of the Earth at takeoff?

  07.21: A box slides to thep83qo 7t uqqrumu 5po9h(sc ;7 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 half as large as the force T. Given that there is friction f and the box 7qsqhc 9 om 8p (73opu5rq;utuaccelerates to the right, rank the sizes of these three forces exerted on the box.

  02.27: The diagram below shows three roller coaster)/twevzq xqa3u,/u n; tracks of equal length. Assume that on all tracks the roller coaster carts start from rest at the same elevation and moves frictionlessly over the tracksa/w; ev3,qux t)/z unq 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 b:6o -k yak e4u fjsgqidb1;j;6qesj83elow shows three roller coaster tracks of equal length. Assume that on all tracks the roller coaster carts start from rest at the same 3q ok6au:6 jj 8e1i4 dykb;g;fjqs-eselevation 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 frictionlesscs831eg vl,w ;j9,ws: ossd kdly along the curved track from point A to point C un,8;3v9sd l,:gdss ceww k1sjoder 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 the floor by a rope which mt7 -k,zsyxz6iakes an angl y, 7zsz-xi6tke 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 the diagram?

  04.40: A 6.0 kg block initially at rest is pushed against a l nty cct)xzv-5 pu892b*z q0uwall 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 friction acting on the block after a time of 1 )tt 8 05qzbczyn9lup2*uvcx - second?

  05.10: A homeowner pushes ayuwjd-o-4a c) 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 magnituddouy-j c)4 a-wes 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. Neither is moving. Which of the 9hsj u)aest u0 5p5jr757jtju su)e9 hapr05sfollowing statements concerning this situation is CORRECT?

  06.15: A crate of toys remains at rest on a sleigh qbc-u /77uba 0cp 2jiras 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 the crate’s increasj-/2uapiurq70 b 7b cce in speedup the hill?