99.36: What happens to the inertia of an objeod5 2. )cimhx(ysvgg+ ct when its velocity is doubled?

  02.14: An intrinsic p6ddy 3cijb;;m* gxu mmj ;8h:jroperty of matter is one that does not depend on the quantity of matter present. Which of ;:863;;gmmmh jj xdicbju*ydthe following properties is NOT an intrinsic property?

  04.16: A 20 kg boulder rests on the surface of thep4 ():e3 4fqszhwyv sr Earth. Assume the Earth has mas4hs4p w3vqz sr f(ye:)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 invur z*xy gi38xch ,/w8 free fall near the surface of the Earth. What is the magnitude of the gravitational force acting on the earth by the sphere? The Ea3igyxv *8/8wuxhczr ,rth mass is $5.98 \times 10^{24} \; kg$ .

  00.09: Is it possible for an object’s velocity to increase while its ac t-:nfegsk j))pd mr(2celeration det nf2j)megs(p:)dkr-creases?

  00.11: A certain particle undergoes erratic motio.( ldr uii)wh;n. At every point in its motion, the direction of the pdl i)wi u.hr(;article’s momentum is ALWAYS

  17.14: A block is suspended in the ai r 8etji 0 aa/tanrg2q30z),sur at the end 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 identu ,0tseajqr i)nag/t2z0r a38ifies the Newton’s Third Law pair force to the force of the string on the block?

  07.18: In which one of the followingmncqohc+x d(6 vy.kz* z:l),g situations is the net force constantly zero on the objec6.v*) klx zd n zgh(oqy+,cmc:t?

  13.28: An object is in free fall close to the ground. A person intervenes and sl(bmtno)hqh h )) u/rm6ows the object uniformly to rest. Which one of the following statements must be true about the magnitude of/)) ohhn hq6utr (m)mb 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 8 gvfkf;)h kln+v0 t3gN, and F3 of 70 N, acting on it. The magnitude ol)0v;f8t+gnf g 3vkhkf the resultant ofF1 and F2 is

  01.07: A force of 6 Newtons and a force of 10 newtons cak8e2g95m:jr 2q rgw3 knc* sgtp2bje0 n be combine to form a resultant with a makbpse85 0 wcre2jn2rm3*:9 g2tkg gjqgnitude of which of the following

  10.06: Which of the following statements is most closely amm60+fnlre;k ssociated with Newton’s Third Lem ml60+f;nk raw of Motion?

  95.06: The reaction force does not cancel t1-wdgft )hfmtst)q5 wm o)(d 7he action force because:

  14.14: A box rests on the floor of an elevator. The elevator is accelera ,mcyyo/m0;brhq-a+yx)o5 flting upward. Which one of the following chor)+;coyq hly0 -y b5o/ fxmma,ices 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. Whgale...wwk* g/g(bye t:cv 1v ich one of t c.ewlba .v1 vtk/(g*g.g:weyhe following choices correctly describes 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 speed of 35 m/s. :d)c,tkvchy c s /*b*i*cejjw m()ols*c ;:mh The batterswings cs,*hy;) owj*td:)*c/ki : h*cmc(jl e mvbscand 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 i kz ss qgny0.cu,y2 v3 yx)hnu/86lje,s a calculator, also at rest. Which one of the following choices is the Newton’s Third Law pair force t),2y, 3gvnxl/n6uq. js0hy 8yszu ecko the force that the table exerts on the book?

  05.06: The students in a Physics I class were in lab conducting aqn dy bse,v h)v7.k8jc +g6su0n experiment related to Newton's Second Law. The collected data were displayed on the graph at the right. From this graph, e7)qg+b dvhu0n j6.sv skc,y8what conclusions can the students make?

  99.03: If the net force on an object were doubled while)lccbijjic;15svx3b m :p f 11 at the same time the mass of the objl j:x)b;svmf1j3cbipci 11 5cect was halved,then the acceleration of the object is

  96.15: A car whose mass is 1500 kg is acceleratr wesv5,5zz5b ed uniformly from rest to a speed of 20 m/s in 10s. Thev , zrwzbes555 magnitude of the net force accelerating the car is:

  99.05: A tractor-trailer truck is traveling down the road. The mass of then,)x8,d 9lskfa 3- w5d+u4z oo gzijxw trailer is 4 times the mass of the tractor. If the tractor accelerates forward, the force that the trailersan guxd,o5o fl 93d+ )zjx8 k-w4w,zi applies on the tractor is

  99.16: Which of the following principles best explains why l q k1u3 aekceu46r+ 2lb2vs)uwarge tractor-trailer trucks generally accelerate much more slocuer 432 u)av2wu+l6kq1bsek wly that automobiles?

  99.19: A 50 kilogram skater at rest on a fl/kzq+lu p4z/y3sn c2rictionless rink throws a 2 kilogram ball, giving the ball a velocity of 10.0 m/s. Which s+/uzl/clk qz24ny s3ptatement describes the subsequent motion?

  00.13: An object near the surface of the earth with a weight of 100 newt.g .nj:h q7)rfeb*nw hons is ac7)fe nhh*nr..gj wb q:celerated 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 for dq*)75+(uv jobj lqitx.7io 2*qjpksce of 2400 N. What is the speed(t7jix5v pd .2 so* )jj iqlq*k7q+obu of the car 8.0 s after beginning?

  98.32: A 3.0-kg block with initial speed 4.0 m/s slides ac(::py/vwt r f jsepz7z,+0f jaross a rough horizontal floor before coming to rest. The frictional force acting on the block is 3.0 N. How far does the block slip jsr va +w,efz /fp:0:t(7yzjde before coming to rest?

  95.38: A block with initial velocity 4.0 mski9qc-n cb; qs,jiq35 z 33pb/s slides 8.0 m across a rough horizontakb,j3s-ncbsi 9 q 3 z5qpq3c;il floor before coming to rest. The coefficient of friction is:

  09.21: A 20.0 kg box remains at rest on a horizontal surface while a person p4,ucla0n aiph7 gva 8.88bwjl /vy,efushes directly to the right on the box with a force of 60N. The coefficient of kinetic friction between theyi /cln8afb , 0ag v.w8h8ve,lapuj47 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 accen r25sjzy.y1o6 zyzt 0 y9uj-elerates uniformly to rest on a horizontal surface.ry eu nz 9z0 6.ytoy5-yjsjz21 The block travels a distance 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 ah*a 9 )l*klysu patch of ice at a speed v with its brakes locked. It then hits dry pavement and skids to a stop in a distanced. Thk9s)l ay *l*uhe 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 with its bd kf-h8dl.rt(d 8cnb.rakes ..td-8 dl(nb rckhdf8locked. 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 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 r :h/+32uiqdg9p;tllf;aq jbi9q 3cjcar's brakes and skidding to a stop. How far:2cj thajpl/iilbq 3d; qf3r9gq9 ;u+ would the car have skidded if it had been traveling twice as fast?

  99.39: The driver of an automobe u2kui.: 5nah)nwm h5ile must carefully control each of the following devices. Which of these devices can cause an accelemu5 w.h25akniu:e ) hnration in a moving car?
(1) the break pedal ( 2) the gas pedal ( 3) the steering wheel

  00.25: The net force on a rotm0;so4kzp-j , 9iumq cket with a weight of 15000 newtons is 24000 newtons. About how much time is needed to increase the rs 9-otujmzqp;ki 0 4m,ocket ’ speed from 12 m/s to 36 m/s near the surface of the Earth at takeoff?

  07.21: A box slides to the right pp dk/4zo, zl-across a horizontal floor. A person called Ted exerts a force T to the right on the box. A person called Mario e/kzop- zldp4 ,xerts 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 ro l1*vd7 )5u*yaga bkicller coaster tracks of equal length. Assume thaly b)7k**acvu5ai d1g t on all tracks 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 belokdge,v 4 5k*lvw shows three roller coaster tracks of equal length. Assume that on all tracks the roller coaster carts start from rest at the same elevation and moves ,l vkvkd*4eg5frictionlessly 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 amr)k8ycs2 f2 n(o+h 4x*fdl p4sf5ppglong the curved track fromg2( y +)pxfhmp8s 5fn 4c*fkplod4 s2r point A 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 acrosgl h7pr. g-pe:sj ew 4q0*qp2wm;)kv rs 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 cwe svw -h2l:g4*0rqgr)m.p; q 7p ejkprate 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 a1u8tifzt+k h 20mo7q m 100 N force as shown. Thecoefficient of kinetic friction is 0.30 while the coefficient of static friction is 0.50. Wm+ fzt 2qktum08i ho71hat 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 grtvwt ic8 9puo8,(*twme ob- /zass 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 m-*(8, mueipw 9vtoot /wzb8ctagnitudes, W, f, N, P is CORRECT?

  06.14: A book leans against a crye)nent,.j2c ate on a table. Neither is moving. Which of the following statements coe .,t) 2ceynnjncerning this situation is CORRECT?

  06.15: A crate of toy +ol 09h /hdcbi2jb(lls remains at rest on a sleigh as the sleigh is pulled up a hill with an incjh /llilhbdc0o 92(+breasing speed. The crate is not fastened down to the sleigh. What force is responsible for the crate’s increase in speedup the hill?