99.36: What happens to th0tg9oa.lh(e crpcdvdo7eq0: e4r 8e+l 6h c8te inertia of an object when its velocity is doubled?

  02.14: An intrinsic property of matter is one that does not depend on thgwyea)11s ,x(xjxme 5e quantity of matter present. Which of the following propert1mgxs 1jw(,y x) x5aeeies is NOT an intrinsic property?

  04.16: A 20 kg boulder rests on tv agde8mk299r he surface of the Earth. Assume the Earth has mass a9ge2dvk m 98r $5.98 \times 10^{24} \; kg$ 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. akl xtu9.p.n8t a0co) What is the magnitude of the gravitational force acting onttcp.09aa u 8).klxno the earth by the sphere? The Earth mass is $5.98 \times 10^{24} \; kg$ .

  00.09: Is it possible for an obx,h* wqw md8u, 77eqyrject’s velocity to increase while its acceleration dh,wdw 7 ,8mr7xe*qqyuecreases?

  00.11: A certain particle undergoes erratic motion. At evc5u, x wg,y5iqh tmfbf1 o-./very point in its motion, the direction of the particle’s momec/wi b5vxf .,5 gqmhyf1u ot-,ntum is ALWAYS

  17.14: A block is suspended in the air at the e qn9dkj:o6)sh 3x6 tzond of a string held by a person. The person pulls on the string uniformly accelerating the block upward for a short tdz o) 3xsko: 66htqjn9ime. 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 block?

  07.18: In which one off.1pyfrz8(h-z / )hh yd+ fchp the following situations is the net force constantly zero on th.dz)hhyrph-hz f+y1 cf(8f /pe object?

  13.28: An object is in free fall close to the ground. A person interj (dy/-uonv66-oqpxm venes 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 a-o/(p x 6nyv do-uq6jmcceleration from gravity is g.

  98.03: An object in equilibrium has three fov/8azh nadak/76f aui;1x cc ;rces, F1 of 30 N, F2 of 50 N, and F3 of 70 N, acting on it. The magnitude of the resultant ofF1 anh/ianx6a zv c71d;; f 8a/cakud F2 is

  01.07: A force of 6 Newtons and a force of 10 newtons can be combine to for4r5g l0hmu -yrpjj+g:m a resultant with a magnitude of wyrp+j u gj:0 5hm-rlg4hich of the following

  10.06: Which of the following statements is bhxr6,z 7k,u *y t(nppmost closely associated with Newton’s Third Law of Motiox uk6*(,nh7zy,t p rpbn?

  95.06: The reaction force does not cancel the action forcny* re;p1eiy3:1oup 0hs a7ux e because:

  14.14: A box rests on the floorg3wdl9lw, z4t of an elevator. The elevator is accelerating upward. Which one of the followind4wl9tg3wz, lg 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. Whicvxec)u.fjizgj2h mz(a9 0c ibnfn831 ie)7u 8 h one of the following choices correctly describes the Newton’s Third Law pair force to thexzg818iba n j02 hzucu f)fjm (ivce.3en)97i air resistance acting on the skydiver during the fall?

  06.08: A baseball is thrown bnio*)5wkks c 5y a pitcher with a speed of 35 m/s. The batterswings and hits the ball. The magnitude of the force that the ball exerts on the bat is aliwko5 c5k)s*nways

  11.13: A physics book sits at rest on a table. On top o,8z xjjp lx, w7zdrv2;f the book is a calculator, wp2vx7z,j jd;z8 ,xlralso at rest. Which one of the following choices 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 conducting an experiment re zlaoj9 zg5 aog7h3*-olated to Newton's Second Law. The collected data were displayed on the h3z9lo7*5oazo -agg j 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 the same time the t5 s m trm0aifbzr0h6;*/z*ou*scq8q mass of the object was halve/5rs*b8uzt ifarq mm 0cs*0;zqt6*o hd,then the acceleration of the object is

  96.15: A car whose mass is 1500 kg ist i*ph 3. :ilexr8*knkc)+ph jk04c bk accelerated uniformly from rest to a speed of 20 m/s in 10s. The magnitude of the net fp*+ khp)i nkk3bc e tlrh*8i:xc04 j.korce accelerating the car is:

  99.05: A tractor-trailer truck is travelingve)cdp/ lm0n; down the road. The mass of the trailer is 4 times the mass of the tractor. If the tractor accelerates forward, the force that the trailer applies on )/ e;dlcmp 0nvthe tractor is

  99.16: Which of the following principles6cvt o3)kf;1 zc*er ze best explains why large tractor-trailer trucks generally accelerate much more slowly 6k*ce e1z)tvz; 3rcofthat automobiles?

  99.19: A 50 kilogram skater*.zw pfyk . 6kgd*b9uv at rest on a frictionless rink throws a 2 kilogram ball, giving the ball a velocity of 10.0 m/s. Which statement descg.* v zwpy6*bdkk9.f uribes the subsequent motion?

  00.13: An object near the surface of the earth with a weight ofnzsy c5h8lj1 f18ae9 r 100 newtons is accelerated at c al811hfyejz r59 sn8$4\;m/s^{2}$ . What is the net force on the object?

  98.25: A car whose mass is 1200 kg is accelerated from reb6fuw7w,,z9z9b3y* v fzx lnsst by a constant force of 2400 N. What is the n*v,ww6,uf yf9s bb3zlxz97z speed of the car 8.0 s after beginning?

  98.32: A 3.0-kg block with initial speed 4.0 m/s slides ad,3 ysvttq 4k7cross a rough horizontal floor before coming to rest. The frictional force acting on the block is q4tv,37ksd yt3.0 N. How far does the block slide before coming to rest?

  95.38: A block with initial velocity 4.0 m/s slides 8.h3 ag4i.cg94z lazu c,0 m across a rough horizontah493c,lg4 u.iz za cgal floor before coming to rest. The coefficient of friction is:

  09.21: A 20.0 kg box remains at rest on a horizontal surface oyp3)d4dekne eub7vw+ o45d:qf 8fp 3while a person pushes directly to the right on the box with a force of 60N. The coefficient of kinetic friction betw +e:bd3fo3f opqv) 4dk7n5pye4e8d wueen 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 accelerates uniformly lo cwtsb5+4m..isb d) yzcm0+to rest on a horizontal surface. The block travels a distance of 12.0 m during the slide. Whbclyz)s0im.+.4+mtc5db o swich 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 acros.wq8sg0nxfx +h yg2 t (6ayi7ps a patch of ice at a speed v with its brakes lockfqt7 xsg8n6pa(y.h 0yg+i2 xw ed. 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 ofi/r+i1e 2dfnluwvt (q5 7n o.i ice at a speed v with its brakes locked. It then hits dry pavevdu5fn 17.trq ii2e+ /in low(ment 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 car's b9awf6 .jttfo5rakes and skidding to a stop. How far would the car have skidded if ittfo6jwt5. 9f a had been traveling twice as fast?

  99.39: The driver of an automobile must carefu/sw0 eol ;a4xblly control each of the following devices. Which of these devices can cause an acceleratixs ;/4olbaew0on in a moving car?
(1) the break pedal ( 2) the gas pedal ( 3) the steering wheel

  00.25: The net forcebtpe8 + 6zi3m my+- ,mnhdy5cm on a rocket with a weight of 15000 newtons is 24000 newtons. About how much time is needed to increase the rocket ’ speed from 12 m/s to 36 m/s near the surface of the cdby,6 e5m8zpm +min+-h y3tmEarth at takeoff?

  07.21: A box slides to the right across a horizontal floor. v:sm z7/wc:teA 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 accelera/svwmt 7:c:z etes to the right, rank the sizes of these three forces exerted on the box.

  02.27: The diagram below shows three rolz/ a4 4qstwdw :llz/6pp cze0)ler coaster tracks of equal length. Assume that on all tracks the roller coaster carts start from 6pa0 wzzcw4d :lzt4)q/ l sp/erest 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. Ass76yo;r p+erqsume that on all tracks the roller coaster carts start from rest +err7q oy;sp 6at 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 cartrolls frictionless8d8o3 k -zxdcd0s 4drkly along the curved track from point A to point C under the influence of gravity. What would be the direction of the cart's acceleration at point dk8r zdd3ck4dx0 8o-s

  02.40: A box with a mass of 50 kg is dragged across twh 2c8/eg *tiphe floor by a rope which makes an angle of 300 with the 2gtichp*e/ 8 whorizontal. 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 wall by a 4 g 5jgcuurg-gjp82)p,nww,z 100 N force as shown. Thecojrg,,gwp w8)c-n52pgg u4 ju zefficient 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 pushes k +lvev4 rrss -3g.x5ea lawn mower across a horizontal patch of grass with a constant speed by applying a forcegslsv- 4ere.x rk35+ v 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, P is CORRECT?

  06.14: A book leans against a cratm 0ul dch,am)7e on a table. Neither is moving. Which of the following statements concerning thhm7c0um)d,al is situation is CORRECT?

  06.15: A crate of toys remains at rest on a sleigh asjv; )n 6fjoe2r y7bu7rovov.)kn5ge1 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 increase in7v; ev5fo)2e 7vuj oy rrgbk6nn1o. )j speedup the hill?