99.36: What happens s 34(ql5mz5yfi :lvo vto the inertia of an object when its velocity is doubled?

  02.14: An intrinsic property of mx n,qku88h) jm68jjan atter is one that does not depend on the quantity of matter present. Which of the following propertiesh8j8a6nuxnq m),j8 jk is NOT an intrinsic property?

  04.16: A 20 kg boulder rests on thejwmiuck e+62 *ppt h18l vlyi2v4i;*i surface of the Earth. Assume the Earth has ma1w*+y kuli i22*vjp l cpvit8h 4;e6miss $5.98 \times 10^{24} \; kg$ 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 falo s; 3j0 6piawgl6o0qol near the surface of the Earth. What is thjl3o q6wp goosa0 0i;6e magnitude of the gravitational force acting 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 while its 5qq9npeqy; :racceleration q5: nq9ey r;pqdecreases?

  00.11: A certain particle undergoes erratic motion. hc9u:u+m ner dkgea + :g/3q.bAt every point in its motion, the direction of the partic .qr3be +d/eu9+a u:hcmkggn:le’s momentum is ALWAYS

  17.14: A block is suspended i;w3 wlne)l ab8n 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. Dunl3aw lw;b)8ering 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 situationsum-)3zccu /ovyw*kk 0p.2vl g is the net force constantly zero on the o gk vocu.u2k0p3v-m*w)/l z cybject?

  13.28: An object is in free dk1( dzsg:z n4 o2 n85liv,gxafall 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 an:nd( gdl4z s 1ai,2vno5xg8z kd the magnitude of the acceleration from gravity is g.

  98.03: An object in equilibrium has three gyy 0j*pi5f.wbzkv 03 forces, F1 of 30 N, F2 of 50 N, and F3 of 70 N, acting on it. Tw fbyzy pk 3*50i.vgj0he magnitude of the resultant ofF1 and F2 is

  01.07: A force of 6 Newtons and a force of 10 newtons can be combine s0 :sk:3 y*bb:uwwxoy to form a resultant with::kxwysb buswo3 y:*0 a magnitude of which of the following

  10.06: Which of the following statements is most closely associated(qz/f hh ye6o3a ,l:om with Newton’s Third /6ye oq,(amh3 o:lhfz Law of Motion?

  95.06: The reaction force dnmd9aompz f++0752e g vk ir6foes not cancel the action force because:

  14.14: A box rests on the floor of an elevator. The elevab8nkp 6 3fut2mugn++d tor is accelerating upward. Which one of the following cho2up6+ +d u3 mnftbnk8gices 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 co 4r+.;go;k b t+woqyllnstant speed. Which one of the following choices correctly describes the Newton’s Third Laq;k g4tl; yw++ o.borlw pair force 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. The bay:mq8 nep,u f(tterswings and hits the ball.qm e:8nupyf(, The magnitude 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 therd,cw 5 tmw,/vkp z)w7 book is a calculator, also at rest. Which one of the followi /wk,z)crd vpwt w,m75ng 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 conducdibhzg3h,nc 0/v kt-2ting an experiment related to Newton's Second Law. The collected data were displayed on the graph at the right. From this graph, whac i0 /v,tkn3hzdghb2 -t conclusions can the students make?

  99.03: If the net force on an object were doubled while at the same timz+vakj7sy (a/ he 3 s5r3v5rmte the mass of the3e ak3+ vrz5mha5s(v 7tsyr/j object was halved,then the acceleration of the object is

  96.15: A car whose mass is7637w le qh9e6xto wkm 1500 kg is accelerated uniformly from rest to a speed of 20 m/s in 10 q hxw tke7396mewlo76s. The magnitude of the net force accelerating the car is:

  99.05: A tractor-trailer truck8exz 1g /6j4 nm.f-tsm0(bddyrm dvt4 is traveling down the road. The mass of the trailer is 4s4rbg(v m8m -f d1e0xdtdmyjt 64.zn/ times the mass 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 explains why large tractor-hois+czw-t ( 0trailer trucks generally accelerw +c-z(o0 thsiate much more slowly that automobiles?

  99.19: A 50 kilogramxg sp6r3b ;dv* skater at rest on a frictionless rink throws a 2 kilogram ball, giving the ball b6sgvd x r*p;3a velocity of 10.0 m/s. Which statement describes the subsequent motion?

  00.13: An object near the surface of the earth with a weighpb xcw a1.lkmrls;8.z, ,gikw4h0 fv 1t of 100 newtons is a8 4g;m .isw z,lx0kwrlbf11.kv,ach pccelerated 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 czza8:tg5bcat r: mvyb*o:e4 v9/il4bonstant force of 244g /4atby5::evo9v lazb:zb8 r *m cti00 N. 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 slides across a ro.,ew e4scwv nd +ke*:wugh horizontal floor before coming to rest. The frictional force acting on the block is 3.0 N. How far does the block slide before *4skwwcw nve +.:e e,dcoming to rest?

  95.38: A block with initial velocity 4.0 m/s slides 8.0 v+.ps k+8 t5(vuxzbj95iq4mycso2od m across a rough horizontal floor before coming to rest. The coefficient bvs5d.j+kopou9vx(+ 42isyqz 5 m8tcof friction is:

  09.21: A 20.0 kg box r5qj*wb )yws0 eemains at rest on a horizontal surface while a person pushes directly to the right on the box with a forb0q* wjse w5y)ce 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 a4ps0o gx4qox+d:qk7 fl f* /me 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 kinet/*l7gmf4q dofx:ke+ xs 0 4oqpic 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 b lq cpkmvls3+liw7c-hd9/ x(- rakes locked. It then hits dry pavement and skids tdp v h+c-s7 cx(9 -kl/wi3lqlmo 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 speed v with its;ect+4 l+p:mxhcwgt8j hj-k+q,t r; d brakes locked. It then hits dry;- tc m d+j4th+hkpct8wqjlrg;+:x,e 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 an emergency stop by slamming on thz)y8ez )9w-bi xv ru;.vj;ogbe car's brakes and skidding to a stop. How far would the car have skidded if it had been traveling twicrbgo8z b i.;- zv wjy;)xve9u)e as fast?

  99.39: The driver of an automobile must carefulen:quxm,m xo3/bhh )2tsy( /hly control each of the following devices. Whi /meq/ stb3n,xhhm(uyxh:)o2ch of these 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 weightb58qot 88m/lifhti.m7s o5v* sd1 acp of 15000 newtons is 24000 newtons. Abou d.7bitqa5 fmmv8ho ci tl/ po5s88*s1t how much time is needed to increase the rocket ’ speed from 12 m/s to 36 m/s near the surface of the Earth at takeoff?

  07.21: A box slides to the right across a horizontal floor. A person called Ted 6xn 2mqv4cuy1jvc/h (exertsjumvhnv26/ cyc1( x4q 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 accelerates to the right, rank the sizes of these three forces exerted on the box.

  02.27: The diagram below shol 2 4haytvtc 5uoz;p,9ws three roller 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 t 9v4ac2l,t 5y; putzoho 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 coa c,z;/c 6:ze+ r zu8d/ejrgiwister tracks of equal length. Assume that on all tracks the roller coaster carts start from rest at the same elevation and moves frictionlessly overiuzdr :wzc i/ j8/+6ce e,;rzg 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 roller8qgpbqdk5xjih+ 7v * 9coaster cartrolls frictionlessly along the curved track from point A to point C bx5 8q*j79dh+ v pqkigunder 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 d */rpgt7bb h1lragged across the floor 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 o 1h/br lbtpg7*n 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 10jv we:d r m zyh)4e*(w e,e.z/ud9r7he0 N force as shown. Thecoefficient of kinetic friction is 0.30 while the coefficient of static friction is 0.50. What is true of the friction acting on the blockv)uwr 7me wh/hz (dy,e 4*jrde:9 eze. after a time of 1 second?

  05.10: A homeowner pushes a lawn mower across a horizontaliwu (.d z)buz(.icy+u 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 varioucuuzd.y . uw)izi((b+s 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 is moving. Which o*6q x n+e3cxgni6y2pk dc29)xmwi 1ovf the following statements concerning this situation is CORRECT? * v9c)kn6opdx36q c1iyg2nx +xwmi e2

  06.15: A crate of toys remains at rest on a sleigh as the sl* o 4rg9fagu-/pn)yzqeigh is pulled up a hill with an increasing speed. The crate is not fastened down to thegrzo*-9u4f /p)g aqny sleigh. What force is responsible for the crate’s increase in speedup the hill?