99.36: What happens to the inertia of an object when its veloc+wimu j28uelexh o,47ity is doubled?

  02.14: An intrinsic property of matter is one thh 9k3di v +tbaxz1ax)rio/a))at does not depend on the quantity of matter present. Which of the following properti x +)v /ao zarihid13kax)tb9)es is NOT an intrinsic property?

  04.16: A 20 kg boulder rests on the surface of the Earth. Assume the g;ed2j+i1ec e2e)jdf Earth has mass igeef2; j1ec)dd j 2e+$5.98 \times 10^{24} \; kg$ 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 jfk,x2)pcarkr 6dr42is in free fall near the surface of the Earth. What is the magnitude f,xa64rck jdr22)k rp 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 obje p5(.gkshs)y.) sgrxqct’s velocity to increase while its acceleratioxs s5ry)(. g).kq pshgn decreases?

  00.11: A certain particle undergoes erratic motion. Atu -/r+f xregxua2ydo f 6df248 every point in its motion, the direction of the particle’-d4g+e8aroud6ff x xf22r/y us momentum is ALWAYS

  17.14: A block is suspended in the air at the end of a string held bbx23 m 27t /ww0pohwcqef92 hly a person. The person pulls on the string uniformly accelerating the block upward for a short time. During this time, which one of the follqx2 /2fo0bl3wwhthcw m2e 79powing 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 folloc)tl;:(sth8m )* 8 kmqz pdvcbwing situations is the net force constantly zero on the obje8v *8tktd()mpb )czms l h:;qcct?

  13.28: An object is in free fall close to the ground. A person intervenes and vndb: n o:x/l. h/x1urslows 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 hxn/:/.1ndlvruox :b 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 a:u wvb +c4x8wt,ysshw/7qo, of 30 N, F2 of 50 N, and F3 of 70 N, acting on it. The magnitude of the resultant ofF1 ct, u,as:bvwwxhq 48yos+/ 7wand F2 is

  01.07: A force of 6 Newtons and a:z l0it1hzql 9ogm,;cg 4yqj* force of 10 newtons can be combine to form a resulta:mg,cli9z 4lgqq1hz *;otj 0ynt with a magnitude of which of the following

  10.06: Which of the following statements is most closelw:xn4 :6u qyfxy associated with Newton’s Third Law of Mfx qu 6y:wn4x:otion?

  95.06: The reaction force does not cancel the acta1yl pdg5*dz,s2 ffvd.5mh0t ion force because:

  14.14: A box rests on the floor of an elevator. The elevator is acceleratingl uvh 38lul47utn5d1o upward. Which one of the following choices best represents the Newton’s T t 7uhv4o3uldl n851ulhird 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. Whichol v1ac e(e:ze.2z/ kp one of the following choices correctly describes the Newton’s Third Law pair force to the air resistance acting on the skydivepkeazle (.2voc/ 1z:er during the fall?

  06.08: A baseball is thrown by a pitcher with az p ):cr8 2 :jq(;4ounjzucwlx speed of 35 m/s. The batterswings and hits the balop;juc(x)wl:8n j q2 c:zu4zr l. 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. 3r70hi * 1y 1l tq6t8hugjoovdOn top of the book is a calculator, also at rest. Which one of the foll o1o *ug1 dl38ytihhjtq7v06r owing 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 Phys4 gefxzf1*1 qt 2k4qqx.7w aveics I class were in lab conducting an experiment related to Newton's Second Law. The collected data were displayed on theffeeq*zq21.7 vx14 k g4wq axt graph at the right. From this graph, what conclusions can the students make?

  99.03: If the net force on antp//:(mimm5hyi g9qw vg-r 6 n object were doubled while at the same time the mass of the object was halved,then the acceleratiom( 9 /g5g mh6/wi rq:p-vtnymin of the object is

  96.15: A car whose mass is 1500 kg is accelerated uniformly from resta,9:5c(u5ghzm dd.ty ro u;qd to a speed of 20 m/s in 10s. The magnitude of the net force accelerating the cardtuyzro cud;a(55.g q,9 d:mh is:

  99.05: A tractor-trailer truck is traveling down the road. The mass o:blv cdxc++/ 7qdl0m uf the trailer is 4/ ld0l m+qbx+cv7c:u d 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 priu.ax2pa l8q *lnciples best explains why large tractor-trailer trucks generally accelerate much more slowly that automob.l2 lu qap8*xailes?

  99.19: A 50 kilogram skater at rest on a frictionless rinfm8:n8rz11fe d bj tv8k throws a 2 kilogram ball, giving the ball a velocity of 10.0 m/s. Whicbe: m j8v1fr818dztfnh statement describes the subsequent motion?

  00.13: An object near tb)m54oqu h e7hhe surface of the earth with a weight of 100 newtons is accelerated at)4ou7h5 qbmhe $4\;m/s^{2}$ . What is the net force on the object?

  98.25: A car whose mass is 12lak(9o d(e 7mnjt:v9 q00 kg is accelerated from rest by a constant force of 2400 N. What is the speed of the car 8.0 s 9mk7:(j 9lnoe q(vtdaafter beginning?

  98.32: A 3.0-kg block with initial speed 4.0 m/s slides across a ro5qc61tz0lrfgjl y v08 ugh horizontal floor before coming to rest. The frictional force acting on the block is 3ltr10 0y fgv5clq6z8j .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 acr 6:g - +jseoaoe7iav ;)whbs.foss a rough horizontal floor before coming to rest. The coefficifh ogb7vese6aja) s +:w;o. -ient of friction is:

  09.21: A 20.0 kg box n;m q0 r-znkfs,s88fqremains at rest on a horizontal surface while a person pushes directly to the 8n8fs,n- z0sfr;q kmq 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 )d.v m rgj d2f1ne6w)imoving at 8 m/s accelerates uniformly to rest on a horij d62).gn 1fvmew)rid zontal surface. The block travels a distance 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 ox626kj,zxzrr 4e. pup f ice at a speed v with its brakes locked. It then hits dry pavement and sk2j,pex6.6z kr zp 4rxuids 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 ic 6u 5-amda:-2us , 3apkgx ,gbm;cjsdye at a speed v with its brakes locked. It then jagdka,bxy5u csd: 6;,-3msag- m2up 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 an emergency stop by slamming on the car's brake3g,cva;y,i3osf hd d2 s and skidding to a stop. How far would the car have skidded if it had been traveling vda;3s,y,oc ifg3d2h twice as fast?

  99.39: The driver of an automobile must carefully control each of by;3tsbo */1lb-r dzzthe following devices. Which of these devices can causeo ;bsb zt1b-y/ d3z*lr 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 withvyc2kr enw,n2is. krvf d1p kx37./2t a weight 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 the surface of the Eart ec3y7 r2nti w.2xpfd/snvk,k 1vr2k.h at takeoff?

  07.21: A box slides to the right across a horivb .- ewhqlnrj7g5e5j*o, 80lu 7uauczontal floor. A person called Ted exerts a force T to the right on the box. A person calluvcwq7* 5,ngelj0 5.u ralhboe u7 j8-ed 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 pt j3 a;o6cvs2roller coaster tracks of equal length. Assume that on all tracks the roller coaster carts start from rest at the same elevation and mo62c3s;jto avpves 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 coaster tracks of equal f)9lem4k 0vn w2nf- fflength. Assume that on all tracks the roller coaster carts start from rest at the same elevation and moves frictionlessly over the tracks to the finf0 evw9l nfff)m2 nk-4ish.
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 frictionlr sr.qrdb-o s62nrj) 0 fr*pi;essly along the curved track from point A to point C under the influence of gravity. What would be the direction o2srj.r;-p ni sobr *dq)r60r ff the cart's acceleration at point

  02.40: A box with a mass of 50 k gbl0vnxmr(-v*6g8q c g is dragged 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 on the r 8m(g xbv-qlr6v0 gn*cope 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 ini,w7q o ab cby;w/1;hzvtially at rest is pushed against a wall by a 100 N force as shown. Thecoefficient of kinetic friction is 0.30 while the coef;q1yav bw;c7 w /boz,hficient 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 a lawn mower across a horizontal patch of grass wit7 gig5po lo.-sh 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 mower. Which of the following relations among the various force magnitudes, W, f, N, P is CORRE.lgs5g oio7p-CT?

  06.14: A book leans against a c3 xu6o)kvoiaf8 mc0ie;g0f +nrate on a table. Neither is moving. Which of the fol+ afk 0oxom8;ui 3gv ecn0if)6lowing statements concerning this situation is CORRECT?

  06.15: A crate of toys remains at+x ;gxoxxbz-3 rest on a sleigh as the sleigh is pulled up a hill with an increasing speed. The crate is not fastene +-x3 o;zxxxbgd down to the sleigh. What force is responsible for the crate’s increase in speedup the hill?