99.36: What happens to the inertia of an object when its veloc/rwczn-; 2v2z jz x.thity is doubled?

  02.14: An intrinsic property of matter is one that does no grir+c* 3elp1;gszl,t depend on the quantity of matter present.+* pr lgz;,3grls1eic Which of the following properties is NOT an intrinsic property?

  04.16: A 20 kg boulder rests on the surface of the Earth. Assume the Earthyp4e py+w*2sg6ahc/z has mass epa 42w*yhys/c pz6+g $5.98 \times 10^{24} \; kg$ 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 Enbu ree:*,td93d g d3earth. What is the magnitude of the gravitational force acting on the earth by the sphere? The Earth mass is eedt ud 3r9n e3d*:b,g$5.98 \times 10^{24} \; kg$ .

  00.09: Is it possible for an object’s velocity to increase while it-y.de2( qrt r+yjemx+ s acceleration decreasesyy2je+ m+tqx .(r- red?

  00.11: A certain particle undergoes erm0ez e(1t+hzv wlxl( lrmyw:f-8-q:j ratic motion. At every point in its motion, the direction of the zh1:twq erl(ej- wfxm-0yl(+m:8v zlparticle’s momentum is ALWAYS

  17.14: A block is suspended in the air at the end of a string held by a pers1i)dle89e 3wjc zgfv /on. The person pulls on the string uniformly accelerating the block upwar3cd81 z f/vgl ewje9)id for a short time. 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 of the following situations is th:. z5z-fopsw1yqez a1a c4*fve net force constantly zero on t1z-1z* azac54fo.wsye f q:pvhe object?

  13.28: An object is in free fall close to the ground. A person intervenes anvps r qo(g2 ax8+n+b0ld slows the object uniformly to rest. Which one of the following statements must g0pano+xl+sq(v8 2 br 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 threkozqhur,l73 r ea;+4z3 bj1tee forces, F1 of 30 N, F2 of 50 N, and F3 u73e,4 +ehr1k zarz3o q;jtblof 70 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 0;y.w:4+eyb sg xp lbwt/0hfkto form a resultant with a magnitude of which of b/et.f s0g+yh:k;b0ypw 4 lwxthe following

  10.06: Which of the following s,ps t.xo8sxt/tatements is most closely associated with Newton’s Third Law of Motiosp,o8x./tt x sn?

  95.06: The reaction force does not cancel the )rwlwbfux8 :o23q4 6hewj- bq i5 x7x5emnrw3action force because:

  14.14: A box rests on the floor of an elevator. The elevator zc8qe2v xpf-pt 7j5s2is accelerating upwavj5 p2ftszce8q2p7 x-rd. Which one 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 air with constant speed. z1z-t5jic 46ebgarbh a;s,0h Which one of the following choices correctly describeizzhbca ,sga0b5 t ;h46 r1e-js the Newton’s Third Law pair force to the air resistance acting on the skydiver during the fall?

  06.08: A baseball is thrown9(vjmz e fznx -96zj(s by a pitcher with a speed of 35 m/s. The batterswings and hits the ball. The magnit( vsz9- jn9ze6xfmj(zude 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+8rq y ,:3tmy q)xstck is a calculator, also at rest. Which one of the following choice: c3r,y)smx+ t 8ktqqys 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 labln7on ji8 gi fp+;3iq*v rqa+3 conducting an experiment related to Newton's Second Law. The collected data were displayed on the graph at the right. From this graph, what co;8+a3 pioqf*vig3nq7 rjiln+ nclusions can the students make?

  99.03: If the net force on an object were doubled while at the same tim)w0 fk2nii d+oe the mass of the object was halved,then the acceleration of the di+)o0n2 wikfobject is

  96.15: A car whose mass is 1500 kg is accelerated uniformly o (wz lk-mf;,rsbk y,u b(dbpd 1x).4kfrom rest to a speed d-ybf(4p bks(km z xbdwo1 ru.;,lk),of 20 m/s in 10s. The magnitude of the net force accelerating the car is:

  99.05: A tractor-trailer truck is traveling down the roatpo(9k i pp.11ymnzoh*qsjeu;jorje 0,4-6 hd. 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 tj npj ek p- sh(,j ouohypr0ieqz1mt o.*61;94he tractor is

  99.16: Which of the following principlfxrgun;q q0-8 2mdg6qes best explains why large tractor-trailer truck0 q8guqnxm;d26g -rf qs generally accelerate much more slowly that automobiles?

  99.19: A 50 kilogram s hf-i0;bfol-r0b jw(,jvse* ikater at rest on a frictionless rink throws a 2 kilogram balovbisfh e-jbw-0 *;0rjlf(,i l, giving the ball a velocity of 10.0 m/s. Which statement describes the subsequent motion?

  00.13: An object near the s fyv+g+zt fc 44tpw0;surface of the earth with a weight of 100 newtons is accelerf;+y0+ ct fv pgsw4z4tated 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 cn7a3 gzk2 k:fbsck14i onstant force of 2400 N. What is the 3: nz4ki7 c2gbafs1kk speed of the car 8.0 s after beginning?

  98.32: A 3.0-kg block with ini)qh.c d:iscv( mhtj4- tial speed 4.0 m/s slides across a rough horizontal floor before coming to rest. Thscm-hc.tj i(: )h 4qdve frictional force acting on the block is 3.0 N. How far does the block slide before coming to rest?

  95.38: A block with initial velocity 4.0 m/s slides 8.0 m across qb)k2zpkdppk)x, (ar-ht m dh/0b4(la rough horizontal floor before coming to rest. Thepz a-(d hkr)b d)k/4(lhm0pxkbq t p2, coefficient of friction is:

  09.21: A 20.0 kg box remains at rest on a horizontal surface while a personj,siy p/b;3z krr jgl8;me8 h7 pushes directly to the right on the box with a force of 60N. The coefficient of kinetic friction between the box and te/br l z;8pk ;ijmy,r8j3 sgh7he 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 accelerabm74q d7ps 4bates 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 coebbam 7 p44d7sqfficient of kinetic friction between the surface and the block?

  00.21: A car of mass m slides across v*r7: :4t/ns:b sxd : t,bdbff c:royua 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 kinetic friction between the tires and the dry road is μ ss:rc*trddbb/ff ytxv:4 ub:o : 7,n:.
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 spn 8gr-vzwa4m.m hmy ;.j, z)ifeed v with its brakes locked. It then hits dry pavement and skids to a stop in a distanced. The coefficient of kinezmz )m4.v -8aywrgj;mnh .fi,tic 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 e3(j m4vd9ahmqj0 2;wy7wo-fq p, ilaon the car's brakes and skidding to a stop. How far would tj w;w9hqm ,oa7i-aj (yvdme3240fl pqhe car have skidded if it had been traveling twice as fast?

  99.39: The driver of an automobile must carefully control each of the folm z.oeo:9+ fqalowing devices. Which of these devices can cause an acceleration in a movm ofz9.ae :+qoing car?
(1) the break pedal ( 2) the gas pedal ( 3) the steering wheel

  00.25: The net force on a rocket with a weig/s gnc2v fp5j3ht 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 neajcsp3/n 25 gfvr the surface of the Earth at takeoff?

  07.21: A box slides to the right across a ho -:lgfn6;unpcxv v1 s-rizontal floor. A 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 th-;vsv:xn6p fnug - 1lcat 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 eq1f0,p mlpf7m/5zigvgs pt,+ hual length. Assume that on all tracks the roller coaster carts start from rest at the same elevation and moves frictionlessly over the trgfhpifv, tm/1,l 0gmsp+z p57acks 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 lengt+pw ) e,d* gl;eeq8azth. Assume that on all tracks the roller coaster carts start from rest at tee+wgdqe;)8, la* tpzhe 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 along3 b/ua r. mc8x8n+yabvfd21ba the curved track fror a/1xa namd883bcb. vyb+fu2m 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 across the floor by a ropeznv7 z aetxala:1h oj-x:f122 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 crate at a constant speed oaaaxtzh f 21n:lv2 1-zxoj 7e:f 20 m/s as shown in the diagram?

  04.40: A 6.0 kg block initially at rest is puscxn.:dv0j d*xn( fu7i6xnsy6 hed against a wall by a 100 N force as shown. Thecoefficient of kinetic friction is 0.30 while the coefficient of static friction is 0.50. ufy 6n7d6ndsi0.j n(c* v :xxxWhat is true of the friction acting on the block after a time of 1 second?

  05.10: A homeowner pushes a lawn mower acro.8q,hpmr;wha d. al6oss 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 aw86h.r p;h,dq .aom lthe 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. Neit,o t a:hcvj*g+her is moving. Which of the following sttcah,gj:v *+oatements concerning this situation is CORRECT?

  06.15: A crate of toys remains at rest on a sleigh as the sleigh is vc );cqj p-jqv1r:u ukd8mf 9r*zc1p/kx p.s( pulled up a -.md1 ku)jur/s*kf;pc8 1 p p:vq vrczqj(xc 9hill with an increasing speed. The crate is not fastened down to the sleigh. What force is responsible for the crate’s increase in speedup the hill?