99.36: What happens to the inertia of an object when its velocity is doubl t-zhbag3l2i5 ed?

  02.14: An intrinsic property of matter is one that does not depend on the quanti6pkvbi/ 07 7.mhcwj okty of matter present. Which of the following pro/m7obck6i khj wv 0p7.perties is NOT an intrinsic property?

  04.16: A 20 kg boulder rests on the surface of the Earp9n8 2u 421.i .ekgxlqwhaofjth. Assume the Earth has m9qapfe i. k4n h28jolwgx1 2.uass $5.98 \times 10^{24} \; kg$ 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 :5c fo31 wd svojm;sa1the Earth. What is the magnitude of the gravitational force acting on the earth by t5wv1: csf1 omj3oa;dshe 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 acceler )wjif/847o -biuzj3vj i4 wtcation de vtwfb)o4/wj i3 uzc4-i7jji 8creases?

  00.11: A certain particle underg,lnt3shq x6d3mu 3-(vcy :ol i8r, buioes erratic motion. At every point in its motion, the direction of the p8l6:l3bq -nrus u ,o 3m xciit3y(h,dvarticle’s momentum is ALWAYS

  17.14: A block is suspended in the air at th0 g.rpl2/ 5d.civu yfie 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 idd 0vgii. .p/2ru lycf5entifies 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 isixt ,sk2 -zyv; r2h+jt the net force constantly zero on trk tv-i 2sh, ;y+zx2jthe object?

  13.28: An object is in free fall close to the ground. A person intervenes 3jowstc -c,y3and slows the object uniformly to rest. Which one of the following statements mc3-,t3w jsocyust 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 has three forces, F1 of 30 N, F2 ()yw mr 19 rt72xqn (fzyy4b;ry k ysbdo65g7gof 50 N, and F3 of 70 N, acting on it. The magnitude of the resultq) t(429ysg(f1rwg76nyy;y 7dzyx b 5obr rmkant ofF1 and F2 is

  01.07: A force of 6 Newtons and a force ykk8fb4 md;; r e, rx6wd3oo(sof 10 newtons can be combine to form a resultant with a magnitu6 mo(w48rdk fdxr o k3eb;s;,yde of which of the following

  10.06: Which of the / c*hqmmegp sh.7(o+cfollowing statements is most closely associated with Newton’s Third Law of Mo+*g .m7ec oqmhhpc/s( tion?

  95.06: The reaction force does not cancel the action force becaused)p . h4udeo.u:

  14.14: A box rests on the floor of an elevator. The elevator is accelerating upwn ioxe0aqai.5 1zd9u,ard. Which oqu9e1 0on ad5z.xi,i ane of the 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:5/ 2u 4fmi vv hm-alxwg5a5ij air with constant speed. Which one of the following choices correctly describes the Newton’s Third Law pair fovxj2: 4 umiv5wf haa5/ g5mi-lrce 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.svz4h2t n,q)z/-bfk n The batterswings and hits the ball. The tbs24)zfv n hq- k/,nzmagnitude of the force that the ball exerts on the bat is always

  11.13: A physics book sits at rest on a table. On:bvc2b7k1z vp fsu 8g:my 9w2q top of the book is a calculator, also at rest. Which one of the following choices is 17k 2g bzqp :ybmsfv9 u2wvc:8the Newton’s Third Law pair force to the force that the table exerts on the book?

  05.06: The students in a Phh*5kzbha46 k u*n -l0m* rh 0ojxvw4auysics I class were in lab conducting an experiment related to Newton's Sec4m-o0ah506r u*ajlhkk *4hwbxvu* n zond Law. The collected data were displayed on the graph at the right. From this graph, what conclusions can the students make?

  99.03: If the net force on an obrcv0on:g -u+ bp-9 serject were doubled while at the same time the mass of the object wap-oe -r nb+srug0v:9 cs halved,then the acceleration of the object is

  96.15: A car whose mass is isujnn* s pxd-:)1ld :1500 kg is accelerated uniformly from rest to a speed of 20 m/s in 10s. The magnitude of the net force ac din:-*npx:suld j 1)scelerating the car is:

  99.05: A tractor-trailer truck is travetaxp b h/67f+u2anu 2aling down the road. The mass of the trailer is 4 times the mass of the tractor. If the tractor accelerates forward, the foxbaf2+ /np6u7aa u2thrce that the trailer applies on the tractor is

  99.16: Which of the following principles besthmas,- rpt4v9 explains why large tractor-trailer trucks generally accelerate much more slow-9hmvs,4tar p ly that automobiles?

  99.19: A 50 kilogram skater at rest on a frict jvqr3u be9xf5 alzps/k8.;6vionless rink throws a 2 kilogram ball, giving the ball a velocity of 10.0 m/s. Which statement describes the subspqev3 k6xlrjua9 5/8bsfzv;. equent motion?

  00.13: An object near f lz .o az f0mw7*wkte eir9l.7q+gn:q(9f4 bxthe surface of the earth with a weight of 100 newtons is accelerated (l 9l0z wqe.wgznrt*f7b. 7e+k4 fqf 9i ax:omat $4\;m/s^{2}$ . What is the net force on the object?

  98.25: A car whose mass is 1200 kg is acceiz77z hh0iwdh43jd cy 6:c e4ulerated from rest by a constant force of 2400 N. What is the speed of the car 8i 7w dyczu4dhh4 cz3 je70hi6:.0 s after beginning?

  98.32: A 3.0-kg block with zjc )bo2j rw b8-f .dz5;b5iwk;7kikfinitial speed 4.0 m/s slides across a rough horizontal floor before coming to rest. The frictional force acting on the blockkoc 5b z;jifw5b ik).;f87zj2dbrwk- is 3.0 N. How far does the block slide before coming to rest?

  95.38: A block with initial velocitd u *r4.p5m 4jhmq4gv3(wxxaxy 4.0 m/s slides 8.0 m across a rough horizontal*x4uqagvmrw j3p4h (xm4xd 5. floor before coming to rest. The coefficient of friction is:

  09.21: A 20.0 kg box remains at rest on a horizontal sq3 l3j kbf8 z,bh48qvourface while a person pushes directly to the right on thezl3kojqv f 3q,88bb 4h 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 moving89knluiapqp0 q)x* d )d pcub0:voy/+m8y* tt 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 one of the following choices best represents the coefficient of kini p*u+p0vyn* cq d:t8bdma/0oy 9lkt p))q8xuetic friction between the surface and the block?

  00.21: A car of mass m slidesq 4r(,*xd0jo wsldg j* across 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 s4* d0w r*(oqj g,xljdkinetic 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 ivhr: 9jdx nw07ts brakes locked. It then hits dry pavement and skids to a stop in a distanced. The coefficient of kinetic friction between the tires and the dry roaddh jr:wx90 nv7 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 sl ruz ms1s+2csp 5u+sz3amming on the car's brakes and skidding to a stop. How far would the car have skidd 1rm +s szp+2u3c5uzssed if it had been traveling twice as fast?

  99.39: The driver of an automobile must carefully control eaagz23nb ez8 4 sg/t t,2jgyi1ych of the following devices. Which of these devices can cat,3/ngy b1j2zi gze2ayt84g suse 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 15v( 0myk5:cz5ygvdjf* 3;55fl xqxnja000 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 qv 5xdk53 mv55f *zg:ajy0n fl;yc(xjEarth at takeoff?

  07.21: A box slides to the right across a horizontal fe3de s -7(c.w138mak bdx lzkrloor. A person called Ted exerts a force T to the right on the box. A person called Mario exerts a force M to twe c 3d8lkdb(7-1kxr e sma3.zhe 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 shsfks 61i3a bh+yxpl y)bl73h8ows three roller coaster tracks of equal length. Assume that on all tracks the roller coaster carts start from rest at the same elevsll1h 6hs) 3+i 3 7xfyky8abbpation 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 tsq +ebb )bmcyd42f5+;5jlwbshree roller coaster tracks of equal length. Assume that onmc lbbbqf5w sje)d 2+ y45b;s+ 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 reach the finish first?

  02.29: Assume the rollercoaster cartrolls frictionl/kmvqs-g80f+zu oq- sessly along the curved track from point A to point C under the influence of gravity. What would be the direction of the cart's acuqg0so8 kz/-mv f- +qsceleration at point

  02.40: A box with a mass of 50 kg is dragged across the f(beohbsfid(f8 75 ( w mmit*;iloor 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 cfw e(hi5smbi7(otf; b *im d(8rate at a constant speed of 20 m/s as shown in the diagram?

  04.40: A 6.0 kg block initi+czwlyrc1y4u,o dn hc)4r. / bally at rest is pushed against a wall by a 100 N force as shown. Thecoefficient of kinetic frictionzy/r urbon )dc4 1l.cc h4+y,w 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,8mnq/0 hvm md 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 magnitudes, W, qn/hmmd80 v m,f, N, P is CORRECT?

  06.14: A book leans against a crate on a table. Neither is movi 8zs (ziauq++lng. Which of the following statements concerning+zqis+za (l 8u this situation is CORRECT?

  06.15: A crate of toys remains at r2z i+mib hli d-9ec1s/est on a sleigh as the sleigh is pulled up a hill with an inc2i-9+zbc 1ihds i lem/reasing speed. The crate is not fastened down to the sleigh. What force is responsible for the crate’s increase in speedup the hill?