99.36: What happens to the inertia of an object when its vely )-)o ul6/gvgvtxob -ocity is doubled?

  02.14: An intrinsic property of matter is one that does not depend on the quanti5qg0 ,f7 jt* 3nawv24rohsxg*snms;sty of matter present. Which of the following properties iwxohaqj 2r0*g sf;s snn7 gs*5 3tm4v,s NOT an intrinsic property?

  04.16: A 20 kg boulder rests on the surface of the Earth. Assume the Earth hasuw+af bw b r7c4c:o8)u masscf8ou+ 7 wbrw: u4ab)c $5.98 \times 10^{24} \; kg$ 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 nealmbz41 igrd.r)vyrn; ,, w,fbr the surface of the Earth. What is the magnitude of the gravitational force a 1bfz4 dlr).ibrr,wmg,vn ;,ycting on the earth by the sphere? The Earth mass is $5.98 \times 10^{24} \; kg$ .

  00.09: Is it possible for an object’s velocity to increase 9q(z (wabk2y-d mkp,w7bh1qtwhile its acceleration decreases?q mbqa(dy-179wtz(h2 ,wk kbp

  00.11: A certain partico2pq-jtt9 e. 15lh qztle undergoes erratic motion. At every point in its motion, the direction of the par-9ze5jhq2t o .t1 tlpqticle’s momentum is ALWAYS

  17.14: A block is suspended in the air7gb-o6g f /cvm 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 identifies f /o67gcmb- gvthe 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 .jxn3*puy;bk net force constantly zero on the objeckn*pj ;ux3by .t?

  13.28: An object is in friwt6*hc b4( faee fall close to the ground. A person intervenes 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 tw h*c4bi6 (fathe acceleration from gravity is g.

  98.03: An object in equilibrium has three forces, F1 of 30 N, F2 of 50 N, and Fq shvj+)g;o8 c k-)kob3 of q; kkvob-+j))8 sgo hc70 N, acting on it. The magnitude of the resultant ofF1 and F2 is

  01.07: A force of 6 Newtons and a force of 10 newtons can be combine to for.daq z :sn+i)um a resultant with a mag)d:zsi+nqa. unitude of which of the following

  10.06: Which of the following statements e 2+2bfw ,ogago ig8n0is most closely associated with Newton’s Third Law of Motion oa eif2,2gwg08obg+ n?

  95.06: The reaction force does not cancel the action foiw*z;4 udlf1 8l5 i+bpg5z knkrce because:

  14.14: A box rests on the floor of xf8 um/ 8-j,zxey ui4yan elevator. The elevator is accelerating upward. Which one of the following choices best represents the Newton’s Third Law pair force to the gravitaxy4xy8-m /zu,uij8 eftional force acting on the box by the Earth?

  15.15: A skydiver falls downward through the air with constant speed. Which 4 nqsoca)oj01qn: xp(one of thx1:qan o)jqocps 04n (e 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 6kxdgjv1, c4h4 sc ynpe*1 q1iwith a speed of 35 m/s. The batterswings and hits the ball. The magnitude of the force t411py 1nvg s,e*xdkj6cq4ihchat the ball exerts on the bat is always

  11.13: A physics book sits aoqem zldls*3snfg(y-u sac/- 43nm7-t rest on a table. On top of the book is a calculator, also at rest. Which one of the following choices is the Newton’s Thirdl- s-ss3 fnda7emql/- c m oz(gu4*ny3 Law pair force to the force that the table exerts on the book?

  05.06: The students dr:si p , aoyi1ix vj xvga2k4u()368pin a Physics I class were in lab conducting an experiment related to Newton's Second Law. The collected data were displayed on the graph at the right. From s2 r1,g)xvyiao ippj6 x4dau:8 3iv (kthis graph, what conclusions can the students make?

  99.03: If the net force on an object were do h0f;w9h793 vaakg9uq nfjpf*ubled while at the same time the mass of the objea9nfj9v hu9g k ;f q7pf*a0hw3ct was halved,then the acceleration of the object is

  96.15: A car whose mass is 1500 kg is accelerar(xp8 w7 45x5yw,wi trwb;u5 qb/uh rbted uniformly from rest to a speed of 20 8ubu5w(7rb x,i45 ; qbhwrwpwr/x5yt m/s in 10s. The magnitude of the net force accelerating the car is:

  99.05: A tractor-trailer truck is traveling down the road. The mor, cdtq4* o-blil/dbg( n(*mass of the trailer is 4 times the mass of the tractor. If the tractor accelebt*l igo (*dnr4qd,/l b(-omc rates forward, the force that the trailer applies on the tractor is

  99.16: Which of the following principles best explaigkwu8(yuiy+,2/ 7vjf w gvr5b ns why large tractor-trailer trucks generally accelerate much more slowly that autiwguy(b2 f,8+vg7 uv/k5rywjomobiles?

  99.19: A 50 kilogram skater at rg*zwdb4hh(,l s5 -yriest on a frictionless rink throws a 2 kilogram ball, giving the ball a velocity o,gs(h*bdh 5wl4 rz-iy f 10.0 m/s. Which statement describes the subsequent motion?

  00.13: An object near the se:uwyr ygq k1 v*j18w*+pnb f6d(k7kupa r *l2urface of the earth with a weight of 100 newtons is acc1k p6yw*y*b 7eu * v8+grkk wduflr1n:jpa( q2elerated 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 constanth3flp4 ng-l ;v force of 2400 N. 4llhfp3;- ngv What is the speed of the car 8.0 s after beginning?

  98.32: A 3.0-kg block with initial speed 4.0 m/s slideoym6h(xk6 g3re2a d z+s across a rough horizontal floor before coming to rest. The frictional force acting on the block is 3.0 N. Howogm6 a (3k6 xrzed2h+y far does the block slide before coming to rest?

  95.38: A block with initial velocity 4.0 m/s svzg:+mnc*ems(*5f c:47 4 gwlao vlmnlides 8.0 m across a rough horizontal floor before coming to rest. The c:cg+ 7m:ln 4ac(zmg n4moe5s *v* fwlvoefficient of friction is:

  09.21: A 20.0 kg box rehj1:l- y j9cutyp4g ,0rna4t ymains at rest on a horizontal surface while a person pushes directly to the right on the box with a forc1-t44uj, l0:aj trncpy9ygyh e 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 accelerates uniformly to rest on a +ze xuf8j/ ts;x.n8 aahorizontal surface. The block travels a distance of 12.0 m during the slide. Which one of the following choices best represents the coeff+x8utxz8jsafe ; /an. icient of kinetic friction between the surface and the block?

  00.21: A car of mass m slides across a patch of ice at a speehf1 s z433cc :8hvg jw-w9j fazfmxh(2d v with its brakes locked. It then hits dry pavement and skids to a stop in a distanced. The 3fh9xjcv-z8zgh1m a j:f s(3hw2 wfc4 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 vn.ewao3g jx 6l/,w f.speed v with its brakes locked. Ijox,.agw/lfev 3w6.n t 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 -yd9 ah, en*zvan emergency stop by slamming on the car's brakes and skidding to a stop. How far would the car have skidded if it had been traveling twice a,- h 9d*avneyzs fast?

  99.39: The driver of an automobile must carefully control e2og /r*( ueccdach of the following devices. Which of thes2do(gu ccr */ee 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 1500uiu 8g*hlqzg-- ; xvk50 newtons is 24000 newtons. About how much time is needed to increase the rocket ’ speed from 12 m/s 58;uq- *hxk- ggzliv uto 36 m/s near the surface of the Earth at takeoff?

  07.21: A box slides to the right across a horizontal floor. A pe)yi/vtx ob72im zr8-j; jj2gbrson called Ted exerts a force T to the right on the box. A person called Mario exerts a force M tz 8bt-mvxr2ijjby ;/ij)2o7 go 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 rollf40(x bl)c woqer coaster tracks of equal length. Assume that on all tracks the roller coaster carts start from rest at the same elevation and moves frictionlessly over the tracks wcl(obq 4) f0xto 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. As6 m+ydlxt1 uybp :*w5e-t 1linsume that on all-1ptbm iu *xe lw tnyl5d16+:y 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 c -p/cglf7*e5se 4f bg)xxl9oxartrolls frictionlessly along the curved track from point A to point C under the influence of gravity. What woxx- p/) *o4l7g5b9 cfgxfseleuld 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 bxnhd r54dz.evx - hz is8 pe8l.)6noe1y a rope which makes an angle of 300 with the horizontal. Which of the following woixx -54d ehsnvhrn 8ole8.pz)d e.6z1uld 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 again2 e.pbhu:;/pc3dj reu st a wall by a 100 N force as shown. Thecoefficient of kinetic friction is 0.30 while the coefficient of/phr cu2ue:3epj d;b. 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 a lawn mower across a horizoc1t5 b dubcj9y+ )eik:ntal 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 mowercc5:y9 1+u)ebkjid tb. 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 ismqgl fv)8;: r)at nx2e moving. Which of the following statements concn)) raf lxtq :vg8m2;eerning this situation is CORRECT?

  06.15: A crate of toys rema14hpq q,a0uv h6j-kjx ins at rest on a sleigh as the sleigh is pulled up a hill with an increasing speed. The crate is not fastened down to the slpj qavjqhkx,0hu41- 6eigh. What force is responsible for the crate’s increase in speedup the hill?