99.36: What happens to kzpd1;8su 0jythe inertia of an object when its velocity is doubled?

  02.14: An intrinsic property of matter is one that does not depend on 4kh+z ;r 4a oe7jbsnwca7d8wfx0 g2bh 8)ahl. the quantity of matter present. Whichla8x z kh+d0wcrghahw ) 4.872so b4 n7;fjeab of the following properties is NOT an intrinsic property?

  04.16: A 20 kg boulder rests q,+02 gs v09adwy frqmon the surface of the Earth. Assume the Earth has massqgw0 da2 qfm,yr sv09+ $5.98 \times 10^{24} \; kg$ 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)ce8o zvl8l c4 surface of the Earth. What is the magnitude of the gravitational force acting on the earth by the4lo)elzc 88 vc sphere? The Earth mass is $5.98 \times 10^{24} \; kg$ .

  00.09: Is it possible for an object’s velocity to incre6 y4kakaujpu*5 rc7;ease while its acceleration decreasep *ejy5u 6k;acauk 47rs?

  00.11: A certain particle undergoes erratic moti 5za/vj+0w f dm8hln e3c+eb9jon. At every point in its motion, the direct/ch9+ en0d v8j3zaj b+efmlw5ion of the particle’s momentum is ALWAYS

  17.14: A block is suspe vb-9zpg1 1(dutbf:cx *goin151 sq clch21kv nded in the air 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. Duz1vfi1k* 1 2 :shclt b1xcgnocg1dq 59vbu-(pring 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 of the following sitqa5 kqv8jt;*muations is the net force constantly zeroj;t 8*mqv kq5a on the object?

  13.28: An object is in free fall close to the ground. A person intb 1;kdu204bo( rfden5a5nhqgaobh /1 ervenes 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 0(15o r41 e nqbfad hu2h5bd/nkbago; 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 30ey(+u*vpvdhls/f )ks /ho: k3 N, F2 of 50 N, and F3 of 70 N, acting on it. The magnitud k:pvf*s3 (os vkh)yl +dhu//ee of the resultant ofF1 and F2 is

  01.07: A force of 6 Newtons andc qc.3+ pfmd8e a force of 10 newtons can be combine to form a resultant with a magnitude of which of the followin.f3c+cm8epqd g

  10.06: Which of the following statements is most closely associated with Newtoyzh9. twb.+qiumc1 zd; *td-jn’s Third Law of M*+1utzm ;9yjz ic.qh b-wdd t.otion?

  95.06: The reaction force does not cancel the act;cs. 77ig+mazgkotr 8ion force because:

  14.14: A box rests on the floor of an elevator. The elevator is accelerating(qrj-l*r13*jedk:sx+ q aqo z upward. Which one of the following choices best represents the Newton’s Third Law oxr 3qq1qkjd a:js *r+le-*z( pair force to the gravitational force acting on the box by the Earth?

  15.15: A skydiver falls downward through the air with constantwde;n hi+c5+y speed. Which one of the following choices correctly describes the Newto;n +5yciw+h edn’s Third Law pair force to the air resistance acting on the skydiver during the fall?

  06.08: A baseball is thrownpu14l j;0bi e* hp7u4o efoy yva6u-h/ by a pitcher with a speed of 35 m/s. The batterswings and hits the ball. The magnitude of the force tha/e-i0*yjbh4huoa up 1v6l uf4oepy7;t the ball exerts on the bat is always

  11.13: A physics book sits at reb xry- me( ghg-7.v2csst on a table. On top of the book is a calculator, also at rest. Which one of the following choices is the Newton’s Third Law pair force to the forc2g7x hc e.b-rs-(vmyg e that the table exerts on the book?

  05.06: The students in a Physics I class were in lab conduct5iga9b:fujv f25 )p bfing an experiment related to Newton's Second Law. The collected da5 j:)u bgfafv pib95f2ta 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 object were doubled while cx,x.9 0je )r)nt vv*ai7 lblbat the same time the mass of the object was hr*7)tnvxa)i.lcx9jl e0bb v,alved,then the acceleration of the object is

  96.15: A car whose mass is 1500 kg fypqy0svp6.cyw5 u(4j-th g8 is accelerated uniformly from rest to a speed of 20 m/s igqsy4w60(c-jfpv 8h up y.5 ytn 10s. The magnitude of the net force accelerating the car is:

  99.05: A tractor-trailer truck is traveling d43 ym zogw04d6 tb1;-k n57xmlq kck av8mtc.zown the road. The mass of the trailer is 4 times the masg zm3 ywom-.dczk6;15t ncqkkx40m4 lavb 87ts 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 best expt:zd: awm i;v:lains why large tractor-trailer trucks generally acm;:z: : iatvdwcelerate much more slowly that automobiles?

  99.19: A 50 kilogram skater aj .ghn,;o*s,htr/ u q2zdri 0iup)ac)t rest on a frictionless rink throws a 2 kilogram ball, gh;unsha*gjz.2,,rqiprti cud/o 0 ) )iving the ball a velocity of 10.0 m/s. Which statement describes the subsequent motion?

  00.13: An object near the surface of the earth with a weight of 100 newte 1e9iqr/3kbzg3*iiu8ug dz .. tgg-sons is accelerated a gue.1ek8g*/t3 bid.qizsrg-i3zu9gt $4\;m/s^{2}$ . What is the net force on the object?

  98.25: A car whose mass iac4ynh0q 7fo* s 1200 kg is accelerated from rest by a constant force of 2400 N. What isoncq4*0y h7f a the speed of the car 8.0 s after beginning?

  98.32: A 3.0-kg block with initial speed 40ehg2;;,tu5 q.4jrjgn1 cpshjd s4bb(+w jl s.0 m/s slides across a rough horizontal floor before coming to rest. The frictional force acting on the block is shstu+;bjdgnh 2jjg4e1(b ,j; 4s 05cqrl p w.3.0 N. How far does the block slide before coming to rest?

  95.38: A block with initial vel+asgp8g63qo13j )qoly vs5 yzocity 4.0 m/s slides 8.0 m across a rough horizontal floor beforvz5a qs36q1lg yjg oso3)8p+y e coming to rest. The coefficient of friction is:

  09.21: A 20.0 kg box remains at rest on a hor7*3ib0mfi +e( iv d:orqhr l.vizontal surface while a person pushes directly to the right on the box with a force of 60N. The coefficihvoi lmr7eqb.d0 (*v:f+r3iient 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 accelerates uniformlv7tf, smp8tcb 3i,2c t7hp74ix bkl8cy to rest on a horizontal surface. The block travels a distance of 12.0 m during the slide. Which b37mbfp74c2ilx t8k8 7it, thcvspc,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 patch of ice at a speed v with its brakest/5bxc q,bxt 9 locked. It then hits dry pavemc, 9b5 xbqtxt/ent 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 of ice at a speervu -t 1vaaz;a4wl+)ld v with its brakes locked. It then hits dry pavement and skids to a stop in a distanced. The coefficient of kinetic friction betwt ;u4llv v za1r)-a+waeen 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,vo9ozw1 aw aprr8)h+ brakes and skidding to a stop. How far would the car 9a1ohw wr+8 z,pa)orv have skidded if it had been traveling twice as fast?

  99.39: The driver of an ad8g1kfv (b mc*7 q4jnputomobile must carefully control each of the following devices. Which of thebq71n (gc*fk dp4mjv8se 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 weighttxifx2nn4v/ ; 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 thnxv4/ f n;it2xe surface of the Earth at takeoff?

  07.21: A box slides to the right across a hori:5;h rx mvlx2szontal floor. A person called Ted exerts a force T to;h 5 slxv2r:mx 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 accelerates to the right, rank the sizes of these three forces exerted on the box.

  02.27: The diagram below shows three roller coaster tracks of e:m1.dhb fz iraiizbd6 8 bmk5*qf9u),qual length. Assume that on all tracks the roller coaster carts start from rest at the same elevation and moves frictionlessly over the tr*br1bf i5zda8iqkufi dm m) ,hb .z:69acks 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 sho0ry1 l.f, as3gxxp:v mf2zzf)q lqt26ws three roller coaster tracks of equal length. Assum6.rfp0zv2ga, 2 m l)f:xytsz q1qxl3 fe that 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 reach the finish first?

  02.29: Assume the rollercoaster cartrolls frictionlessly along the)z f7a+u/dmb((b .ugjmmj ) +y2zjow x curved track from point A to point C undeoa2 bjz)xf+jmg)b+/mu7wm jd ( u.y(z r 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 thxmu p mqpw1*s4 2jw+ g9lzh*(ymjs9mxg8,m) ce floor by a rope which makes an angle of 300 with the horizontal. Which of the following would be closest to the coefficient of kinet sjgxypch)qxp,+z m1l4s m*u m(w *9gm2mw98jic 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 initialla0h9 yf*vh h2 idyw)b-y at rest is pushed against a wall by a 100 N force as shown. Thecoefficient of kinetic frictbhhi-v0)dyaf y*2 hw 9ion 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 gg*eu6f8eytd5 dt8ihsx -b1ld w 9,h; a lawn mower across a horizontal patch of grass with a constant speed by applying a force P. The arrows in the diagram correctly indicatetd-*88;d5ydl we9g eg,1txhf ubh6is 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 crate on a table. Neither is4pi .dcn i7*gj moving. Which of the following statements concerning this sitpc .g4d *n7iijuation is CORRECT?

  06.15: A crate of toys remains at rest on a sle1t f4uokf o akvv/d3v+3, fp0aigh as the sleigh is pulled up a hill with an increasing speed. Tv 4+da30 1 k3oupaftvv /fof,khe crate is not fastened down to the sleigh. What force is responsible for the crate’s increase in speedup the hill?