99.36: What happens to lawnt h gpbsz8a l(j3: m5t:34the inertia of an object when its velocity is doubled?

  02.14: An intrinsic property of matter is one that dod 7;onpx6xen 8es not depend on the quantity of mattenn o8d; p7x6xer present. Which of the following properties is NOT an intrinsic property?

  04.16: A 20 kg boulder rests on th (k4alw r-unm/e surface of the Earth. Assume the Earth has mas r/lnku(wam-4 s $5.98 \times 10^{24} \; kg$ 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 the Earth. What is 0k,ql8 v24c b gyutllutkc8,po-;0 tfthe magnitude of the gravitational force acting on the earth by the sphere? The Earth masyg42tk,k8 ,qvplu0;tcu 0l8 - flcotbs is $5.98 \times 10^{24} \; kg$ .

  00.09: Is it possible for an object0*jd)o/3e k8jane 4u -qxvs3ck0nb z q’s velocity to increase while its acceleration decreases?4 -noee3xn/uak0 3 sq*vj zqcbk 0j8)d

  00.11: A certain particle undergoes erratic motion. At every polu8o px y)3 5qsas0aj2int in its motion, the direction of the particle’0u5 salpos2a3y xq)j 8s momentum is ALWAYS

  17.14: A block is suspended in the air at the end of a stringdeyuxy4 0:-b j2d :)e qelfc.x 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 choicey:xl 0ddqb-: e x jfu).y4ce2es correctly 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 is the/3p x dhey02n d8m*rad net force constantly zero on the3n a 2r*m/d0y8xdphd e object?

  13.28: An object is in free fall close to the groufojehfu7.l6 spe:yj5 ;o e- 3xnd. A person intervenes and slows the object uniformly to rest. Which one of the following statements musthsj. 5y l7p6; x-foo:ee 3feju 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 ha(l*sy e g4, g.ttf(nxjs three forces, F1 of 30 N, F2 of 50 N, and F3 of 70 N, acting on it. The magnitude of the resultant ofF1 and Ft j( ytx4fn .s*eg,l(g2 is

  01.07: A force of 6 Newtons and a force of 10 newtons can/f x(enb nx q2)hcr-r6;rc jh6 be combine to form a resultant with a magxnhc 6-e/;h)rxq(rfbc6 j 2 nrnitude of which of the following

  10.06: Which of the following statements is most closely associated with Newton5 ip zf(snamp m)p4/ hu) e438ivcup*x’s Thir)x eui acpp)m5fzps 3uipvh8( 4m /n*4d Law of Motion?

  95.06: The reaction force does not cancel the actiol5:5oy rzlvv1 n force because:

  14.14: A box rests on the flder0qa )p57bqku8f1 yoor of an elevator. The elevator is accelerating upward. Which one of the followpyr 7)8 ku01fedqba q5ing 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+it i,rueh2 g7 air with constant speed. Which one of the following choices correctly describes+ r7i,tug2ie h 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 speeeoczkp2gv0/c 3 v22 z riw(s,ad of 35 m/s. The batterswings and hits the ba3 ewg a/ 2v22cckvp,0 izsozr(ll. The magnitude of the force that the ball exerts on the bat is always

  11.13: A physics book siradus5v4 oj; 9fwui: 9ts at rest on a table. On top of the book is a calculator, also at rest. Which one of the following choices is the Neu: 99d s5vfuwo4ai ;jrwton’s Third Law pair force to the force that the table exerts on the book?

  05.06: The students in a Physics I class 3gnjv, yx1eg-n,bjr )were in lab conducting an experiment related to Newton's Second Law. The collected data were displayed on the1 n3yxv)b j,n-,gjer g graph at the right. From this graph, what conclusions can the students make?

  99.03: If the net force on an object were doubled while at thovau(pu) wyc p431hi-e same time the mass of the object was halved,then the acceleration of the object i31pcav pu wio (h)-uy4s

  96.15: A car whose mass is 1500 kg is accelerated uniformly from rest to a speqc /ek4d ry rxv4o 80m+q,cci8ed of 20 m/s in 10s. The magnitude of th0oxvqcqdi 4c r, 84c8yk+/ emre net force accelerating the car is:

  99.05: A tractor-trailer truck is traveling downsj e4j-b9q2s o :lqkg9 the road. The mass of the trailer is 4 times the mass of the tractor. If the tractor accelerates forward, the force that the traile9 -sqslb4qk o92gj:je r applies on the tractor is

  99.16: Which of the fol,kivm(kifj i . w;3+lklowing principles best explains why large tractor-trailer trucks g, iliw+jkf(m .i3kv;kenerally accelerate much more slowly that automobiles?

  99.19: A 50 kilogram skaterpd.ckt9 5;,re0y kjt2a.jkq m at rest on a frictionless rink throws a 2 kilogram ball, giving the ball a ve tyrt. dpkk05q29 km,.cjjae; locity of 10.0 m/s. Which statement describes the subsequent motion?

  00.13: An object near the surface of the earth with am7xi k:4c oed8.gb(qo2vrp1b weight of 100 newtons is acce pm41 r72eo:.bic b8xgvko(qdlerated at $4\;m/s^{2}$ . What is the net force on the object?

  98.25: A car whose mass is 1200 kg is acceler c1linum5.rd kyn hf8216cyo 8ated from rest by a constant force of 2400 N. What is the speed of the car 8.0 s afte8i1dur 28yhof.c6lnmk c5y1 nr beginning?

  98.32: A 3.0-kg block pa gcj7l7rno y9c09u,with initial speed 4.0 m/s slides across a rough horizontal floor before coming to rest. The frictional force acting on,cy opag7 l0j 9cnu79r the block is 3.0 N. How far does the block slide before coming to rest?

  95.38: A block with initial v3jdzglq)zis 4,s- g9o .+uetrelocity 4.0 m/s slides 8.0 m across a rough horizontal floor before coming to rest. The coefficient of friction iil)q g4gd. -suzeort9, js z+3s:

  09.21: A 20.0 kg box remains r:f 4ejp,2xu;i s,dye6sq+,i1dcqvfat rest on a horizontal surface while a person pushes directly to the right ;eds,:iu s ,qf y1vp e4,f drqxc2i+6jon 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 acjb .9kh cf 1*al1pjt gz);jo/dcelerates uniformly to rest on a horizontal surface. The block travels a distance of 12.0 m during the slide. Which one ofz /t1h jl*dba9.1f p)ojc;jkg 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 icc qqi*p04v1kkgnj1*vf6n ta8 e at a speed v with its brakes locked. It then hits dryk*4qt6j qpv8fgika cnnv1 *01 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 slide1 8j( 5ynw r8zw3ncooys across a patch of ice at a speed v with its brakes locked. It thc (n3z yroj5nwo8w1 y8en 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 emef)tv ,j gsk-m: 3:yingrgency stop by slamming on the car's brakes and skidding to a stop. How far would the car have skidded if it had beengjmg) :t,n : vysikf-3 traveling twice as fast?

  99.39: The driver of an automobile must carefully control each of lnz o(667gmyxthe following devo yzm(6n6glx7 ices. Which of these devices can cause 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 with a weight of 15000 newtons is 24000 newtonstw:,ghco8 gs5 f quequ 5x94.rb.g+jv. About how much time is needed to increase the rockhgfg8w s jrct:+eg4bx,. o.qu9v u55qet ’ speed from 12 m/s to 36 m/s near the surface of the Earth at takeoff?

  07.21: A box slides to the righ3r)sb z8( q17xoeh0qeegd)uhe 7u ( pzt 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()eehz ogqr7 x8 s 3u( 7qh1pede)zu0b. 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 coaster tracksk;,)gcv 6on xv of equal length. Assume that on all tracks the roller coaster carts start from rest at the same elevationk, v)gnoc x6v; 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 be68i*l stnuj vpj ib/(3low shows three roller coaster tracks of equal length. Assume that on all tracks the roller coaster carts start from ni tuj8bjp 3 */vsl(i6rest 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 rolleqq, q+ chsqa41j 7wk4ercoaster cartrolls frictionlessly along the curved track from point A to point C under the influence of gravity.7 ejk +h4cq4qqsaq1,w 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:4( ) yct+x job3ful)dacyt2 m 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 tbumj2(f lxo)3 ca d+ yty):4cthe 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 iuvzi /p13h7st nitially at rest is pushed against a wall by a 100 N force as shown. Tt7z3pv i1u /shhecoefficient 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 second?

  05.10: A homeowner pusheeziv+i-wd0d s7/mui0 d 1i+ zxs a 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 of the following relations among the various force magnitudesixd1i w+i/ v -dsdm0ziu70ez+ , W, f, N, P is CORRECT?

  06.14: A book leans kchrit6pv,130kr43.l bqetvftzu / *against a crate on a table. Neither is moving. Which of the folu3b3fle/.tptv kz r6 ht*k0 i4vrcq,1lowing statements concerning this situation is CORRECT?

  06.15: A crate of toys remains at rest on a slu r xs e1 j3cwo6,b w0;04vcbk;m5lcnyeigh as the sleigh is pulled up a hill with an increasuknm; w,vywe0bjxc6cc ;b 03sr o54l1ing speed. The crate is not fastened down to the sleigh. What force is responsible for the crate’s increase in speedup the hill?