99.36: What happens to the inertia of an objozeg/s m-5hfc,2mdq0ect when its velocity is doubled?

  02.14: An intrinsic property of matter is one that does not depend on the- er w2hnw8ek7/+4x.i ivxn ig quantity of matter present. Which of the following properties is NOT an 2ii8/+gxnein h 4.r-xe wk vw7intrinsic property?

  04.16: A 20 kg boulder rests on the surface of the Earth. Assume the Earth gon7fr.iz9 7-qijb4 jdj / qx3has mass jjf 9qixqn j3/.bod-g4i7zr7 $5.98 \times 10^{24} \; kg$ 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 surfac ngz 5x:duwt) ;06dov4zrhi 5se of the Earth. What is the magnitude of the gravitational force acting on the earth by the sphere? The Earth mass is ;zx ut)gdv 6nwri5od: h 4s05z$5.98 \times 10^{24} \; kg$ .

  00.09: Is it possible for an object354 wbv6wl(p -vl sagk’s velocity to increase while its acceleration decreases? bla6 sklv(pgwv- 54w3

  00.11: A certain particle undergoes erratic motion. At everykto e5s o9c9x ).uaa-t7g+wcm point in its motion, the direction 7k+o 5 ga-c9oua)x9.st metwcof the particle’s momentum is ALWAYS

  17.14: A block is suspended in the air at the end of a string held bc 8p4nx)vg5fv y 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 the Newton’s Third Law pair force to the force of v)v xf4 58npcgthe string on the block?

  07.18: In which one of the following situations is the net force consto .vg 5b4.ygw -,mieilantly zero on tm4 -wy, .elgiivbo5 .ghe object?

  13.28: An object is in freeub 1nlr )zhv3 jfz/3y. fall close to the ground. A person intervenes and slows the object uniformly to rest. Which one o 3z/3 1nvrluj.hyb)fz f 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 the acceleration from gravity is g.

  98.03: An object in equilibrium has three forces, F1 of 30 N c 13oho5y(8f- z+rysln*jriq, F2 of 50 N, and F3 of 70 N, acting on it. The magnitude of the resultant ofz q jyf-iho+ y*o83ns5(l1rr cF1 and F2 is

  01.07: A force of 6 Newtons and a force of 10 newtons can be combine g-fmk q)4hutw/ tz:)eto form a resultant with a magnitude of which of the followingwq) )kzmth-/gu: ef4t

  10.06: Which of the following statements is most closely associated with Newtonhqek1 t6;;.lq)1ux (9fus + mlckrlu j’sx 6s uhk)q1q1k lu(jl. l;f+ctm9e;ur Third Law of Motion?

  95.06: The reaction force does not cancel the a0b npra3le+6-cry6 b action force because:

  14.14: A box rests on the floor of an*;cx13he,j hgy53)x 7lqqofs-hx rev elevator. The elevator is accelerating upward. Which one of the following choices best represents the Newton’s Third Law pair force to the gravitational force acting ongqrs1j; - eeo* l,) xxf3hch7q3xhyv5 the box by the Earth?

  15.15: A skydiver falls downward through the aiwf. (xv4od:sar with constant speed. Which one of the following choix.(o 4asvfd w:ces 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 with a speed of 35 m/s. The batt .uyuha+ ))fb w)58lknxo,l jperswings and hits the ball. The magnitude xy hwu)))pn. 5 o+fakub8 ll,jof 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 t,xgqh ;f7: ;/ vhaelp; 2vxdcdvxso94he book is a calculator, also at rest. Which one of the following choices is the Newton’s Third Lawqxvpoe vfh:avg;x 2s,/xc4d 9 ;7h;ld pair force to the force that the table exerts on the book?

  05.06: The students in a Physics I class were in lab conducting tblj k 4/hv246yv521:kf etijdq, q jpan experiment related to Nef41 /tkt 24,yihqbk vj6dvq:2jle5j pwton's Second 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 object were doubled while at9 .k)l9yaeu *uujh9 sn+3ikds the same time the mass of the object was halved,then the acceleration9us y*s 9 u)j d.h+nk3kula9ie of the object is

  96.15: A car whose mass is 1500 kg is accelerated uniformly from resdms)1y*:wve9 tpkazji t0)h *t to a speed of 20 m/s in a w0)tz9d)se:*kvj1 m *tiyph 10s. The magnitude of the net force accelerating the car is:

  99.05: A tractor-trailer truck is traveling down the road.tzezz:,mk3c: 4 a lyfn,-br,p The mass of the trailer is 4 times the mass of the tractor. If the tra c3lf4 z-nye,,k:pmzt :a zr,bctor accelerates forward, the force that the trailer applies on the tractor is

  99.16: Which of the following principles best explains why large tractor-tzucp ,+2yxf 7nrailer trucks generally accelerate much more slowly+7f zpc2 uyn,x that automobiles?

  99.19: A 50 kilogram skater at rest on a frictionless rink throws 9ibrx7-um1 w1e- w3lxhxgt h 45jr1bta 2 kilogram ball, giving the ball a velrtr eg 1hht muw3-bx1-51jxwx7i94l bocity 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 newto)4iz 5i8*et ni gbeu(5(s zvbins is accelera nii ub5z(i*( e5bvse4t) gz8ited at $4\;m/s^{2}$ . What is the net force on the object?

  98.25: A car whose mass is 1207y ok -d2si jb8d8eb*n0 kg is accelerated from rest by a constant force of 2400 N. What is the speed of the car o*dn2ys 87d8bjbi- k e8.0 s after beginning?

  98.32: A 3.0-kg block with initial speed 4.0 m/s slides across t7k0 z e0wdg.vp9 l9ahi6wl)p a rough horizontal floor before coming to rest. The frictional force acting on the block is 3.0 N. How far does the block slide before coming to9)p.vatiez wgd7h9pl l w6k 00 rest?

  95.38: A block with initial velocity 4.0 m/s slides 8.0 m acrcq uk.z7l6had g8q+6di s1hv (w5ie2q oss a rough horizontal floor before coming to rest. The coefficient of frictii 8elq(.+u1 qhh6v5a2kg6s w7zciqdd on is:

  09.21: A 20.0 kg boxb t+/ (dn khp0-i9 sumbph24rn remains at rest on a horizontal surface while a person pushes directly pdk9h pnh/b+u 4nt2-i0 r m(sbto the right on the 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 moving at 8 m/s accelerates uniformly to ;ig .gi 6o9/z kcqy1 avv2k5ekyb *fp/rest on a horizontal surface. The block travels a disv bf*c vz/y59k kyg1.;g26ikaqei/o ptance of 12.0 m during the slide. Which 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 brv,mt,sghnvo :td)8)3l tlh mm6p8 vg0akes locked. It then hi8l 3 td:8vmm6vn smlgtg0)vhoh,t ,)pts 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 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 braky7hyozz--q 2v: 7x 6sj7rwqgh es locked. It then hits dry pavement and skids to a stop in a distanced. Thezz7vyx6-qwy:h27jsq- grh 7 o 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 sv*k-g+bc 6,2(pij x wwx jjol9top by slamming on the car's brakes and skidding to a stop. How far would the car have skidded if it had been traveli cb, po2lj-9wwk(j*v+6xgx jing twice as fast?

  99.39: The driver of an automobile must carefully controlv0/th+g +vfma;1nnkzhfef( : each of the following devices. Which of 1;za+ nt+f/(0fhhvm: vnge kf 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 weight of 15td;+a j qwxhh744 nbi0*dr r-y000 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 Earth at takeoyb47wjh x4n- +ad*t;ihrqd0r ff?

  07.21: A box slides to the right across a hor-y,,f il(qmjo izontal 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 that there is friction f and the box l,m ifj qy,-o(accelerates to the right, rank the sizes of these three forces exerted on the box.

  02.27: The diagram below shows three rollvuo37l07vhpd 5z .k w ujug0s(er coaster tracks of equal length. Assume that on all tracks the roller coaster carts start from rest at tkl 7(ov7zgw0su.d53vup0 ju hhe 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 be traveling the fastest at the finish?

  02.28: The diagram below shows three roller coa wvh ddz(+ h*;3aryfny)1 vx6sster tracks of equal length. Assume that on all tracks the roller coaster carts start from rest at the same e 6y 3an*xr+v;vhdd(s wz)fyh1levation 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 fri *grp/:vu4ie,omu xc g433meb -z2dtrctionlessly along the curved track from point A to point C under the influence of gravity. What would be the direction of the cart's acceleration at po2*z umreb c x4e -g3 igd3ov:,t/mpu4rint

  02.40: A box with a mass of 50 kg is dragged across the flowq xf94maf 2l8 whdd.5,mua 0wor 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 newtoa49d52.ufmf,xmw hw w0l8ad qn 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 :c bx-t c .jgf2sv8.+ttnxrs(rest is pushed 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. What is true of the friction ac+cs.j: vncbx.8st(rgtt f- x 2ting on the block after a time of 1 second?

  05.10: A homeowner push8ft6uogk .z2oes a lawn mower across a horizontal patch of grass with a constant speed by applying a force P. The arrows in the diagram correctly indicak6tuof.z82og te 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 is moving. Which of(,d8h4ytrfhb ejcy 2. the folloy4(byd ce,2fth h8. jrwing statements concerning this situation is CORRECT?

  06.15: A crate of toys remains at rest on a slehaafald-ro lm: t32 -69s/pv yigh as the sleigh is pulled up a hill 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?:- 3r 9phdl-stymvlaf a62/ao