99.36: What happens to the inertia of an object when f) . +6.lbcn+odjpklbqly910d jg k/rits velocity is doubled?

  02.14: An intrinsic property v zd m sh;268lvd2cvd3of matter is one that does not depend on the quantity of matter present. Which of the following properties is NOT an8scm3 v dh2zd2v;lvd 6 intrinsic property?

  04.16: A 20 kg boulder rests on the surfk v 2wrf1iw.b)ace of the Earth. Assume the Earth has ma1fwiwrk2) bv .ss $5.98 \times 10^{24} \; kg$ 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 Earth. What is b bduji hw/5l9fi(r48;)v87hmmqjljthe magnitude of t i 7/9f8 i;bljl8mj m(hwqvbj 4ru)d5hhe gravitational force acting on the earth by the sphere? The Earth mass is $5.98 \times 10^{24} \; kg$ .

  00.09: Is it possibl-dbwh9 z1n3vzfo8u1fe for an object’s velocity to increase while its acceleration zwfo1-3hzb1 98nvdu f decreases?

  00.11: A certain particle um z 4,bfrx 2pt zud8w;;4+yoozndergoes erratic motion. At every point in its motion, the direction yt z;+4x2dz ,fm4w pru8o;ozbof the particle’s momentum is ALWAYS

  17.14: A block is suspended p5. l8 qi6ou tdatfx1*in 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. During this time, which one of the following c i6 opfatdl5.q*u1tx8 hoices 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 the net force constanq)hjhngjj4 34 tly zero ng)j4j 4 3hjqhon the object?

  13.28: An object is in free fall close to the ground. A person intervb2+2gi54xhln*m i q 9tsi8vo benes 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 bvhm g+q4 t52 bxsbiilio* 98n2eing 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 hat8-s sfg)x/d+ 6j 3d.r7j7reflaknyc s three forces, F1 of 30 N, F2 of 50 N, and F3 of 70 N, acting on y.fjarj63/nkr e)fg8 77 dst+c s-lxdit. The magnitude of the resultant ofF1 and F2 is

  01.07: A force of 6 Newtons and atj :(kzv 1q*lu force of 10 newtons can be combine to form a resultant with a magnitude of which of the followij1vtq* l z(:ukng

  10.06: Which of the following statements is most closely associated with Newto9jj3u+) nv7l.xx xd ms(( jt6;fwqxsen’s Thirdxdj e sq6.f37j; x(t n9v (+xwm)xsjul Law of Motion?

  95.06: The reaction force does not cancel the action force b+nlk g hzyf+2k )-t5jpecause:

  14.14: A box rests on the floor of an elevator. The elevator is accelerax+b g,a 8yt.6z7pw1itey) xbrting upward. Which one of the following choices best represents the Newton’s 1b,z aygetr )8bp7wit.yx +6x Third Law pair force to the gravitational force acting on the box by the Earth?

  15.15: A skydiver falls downward through tvrs;c*v2c25m d3i2j6s /bi uu f7jik che air with constant speed. Which one of the following choices correctly describebsi 2 ju*v6s3r v 572c kfid2imc/juc;s 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 w;2g0g*qlthlk6: hof tith a speed of 35 m/s. The batterswings and hits the ball. The magnitude of the force that the ball exerts on the bat is alwaysf:lt *qg6lko2h0;h gt

  11.13: A physics book sits at rv8t,0 inq9m )klfr0 qbest on a table. On top of the book is a calculator, also at rest. Which one of the following trvmi0n0q)q 8,blfk 9choices 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 cladjove6 .dioti:6i ev(9d4wwamdf*6 7ss were in lab conducting an experiment related to Newton's Second Law. Theime6dfwd*ve74dod6i w(av6j: 9. to i 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 at the same time the mas 3jsj1jrh i31ks of the obj13 rjhj3s1kiject was halved,then the acceleration of the object is

  96.15: A car whose mass is 1500 kg is accelerated uniformly from re7 l./usc7 (.k-s29dtbivwlgkh kxff5st to a speed of .xhugslk k9(idkfb l2t7 7/c5vs. -fw20 m/s in 10s. The magnitude of the net force accelerating the car is:

  99.05: A tractor-trailer truck is travelin11lm( asl2* svwjh8yfg down the road. The mass of the trailer is 4 times the mass of the tractor. If the tractor accelerates forward, t yljsshwa21 m(vl8 *1fhe force that the trailer applies on the tractor is

  99.16: Which of the following pri5)cv;uw/ dsubsa8lk5nciples best explains why large tractor-trailer trucks generally accelerate muchw us5/8;b5 a )ucslvkd more slowly that automobiles?

  99.19: A 50 kilogram skater at rest on a frictionless rink throssj* rm txq.95ws a 2 kilogram ball, giving the ball a velocity of 10.0 m/s. Which statement describes the subsequent motion?j s9rs mx5.t*q

  00.13: An object near the surface of the earth with a weight of 100 nwr k kmb*q(6p4ewtons is aw 4mprkq 6(k*bccelerated at $4\;m/s^{2}$ . What is the net force on the object?

  98.25: A car whose mass is 1200 kg ism(*xtn/ . ;logq6sagk accelerated from rest by a constant force of 2400 N. What is the speed of the caro /aq. s;ntk* lgg(6mx 8.0 s after beginning?

  98.32: A 3.0-kg block with yq 73r7olmey, initial speed 4.0 m/s slides across a rough horizontal floor before coming to rest. The frictional force acting on the block is 3.0 N. How far qm3eo ,y7y7lr does the block slide before coming to rest?

  95.38: A block with initial velocity 4.0 m/s slides 8r9jdip, 4)c nnx4a hg..0 m across a rough horizontal floor before coming to rest. The coefficient of p.dhn)9i g4acrjn 4 x,friction is:

  09.21: A 20.0 kg box remains at rest on a horizontal surface while a perx)ds0qozr26uy,dg *( 8i lqtqson pushes directly to the right on the box with a fo)*rqqzdo60tyd x,ug i q8l(s2rce 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 res/u 7r(nk6omdst on a horizontal surface. The blonr7 o(/u6mksd ck 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 slidesmo/f 5pd6 ggy: cb7b0b across a patch of ice at a speed v with its brakes locked. It then hits dry pavement and skids to a stop in 5:70bd oy6cf/bmp gbga 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 w + vcu4j(rge+mith its brakes locked. It then hits dry pavement a evm+rj4gu c(+nd 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 :bur-:j vm2m 2upvoa/slamming on the car's brakes and skidding to a stop. How far woulmv:a-:2ou bm2 r/p juvd the car have skidded if it had been traveling twice as fast?

  99.39: The driver of an automobile must carefully control each of the forq dz2x-p*5uw, x:toillowing devices. Which of these devices can cause an accele,w2op i:t- quz*x5drxration 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 1505;-rgezq i 7wq00 newtons is 24000 newtons. About how much time is needed to in 5eig ;qr-wz7qcrease 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 calledxu2zeyy7nyw4 0o7 n0l 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 boxl0 z7n0n2 7ywoye4yu x accelerates to the right, rank the sizes of these three forces exerted on the box.

  02.27: The diagram below shows threvkzsxm o+ 6 md9uoce ;d;)7ma3e roller coaster tracks of equal length. Assume that on all tracks the roller coaster cart; vd 3a7cmex);do mmsu6 9+kzos 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 be traveling the fastest at the finish?

  02.28: The diagram below shows three roller coaster tracks of ed c1rc(.sd p*uqual length. Assume that on all tracks the rollercprd .sd*c1(u 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 cartrolls frictionlesorf -kt j ;avzie55 a6*/)xqulsly 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 al v5/qotz )e;uf6aj*kra-x5it point

  02.40: A box with a masz(8t8 u4lrw x-dwx ;+ zfr-kmes of 50 kg 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 kiz+zm8 t8r xwfl4rexk;w -(d-unetic 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 q08l js 1ab.oidx(z gaze;*9oat 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 th8 zzea( g1sbi0dxj; .l qoa*o9e 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 w le lils8)g tk-qi7t0)ith a constant speed by applying a force P. The arrows in the diagram correctly indicate the dit)t8egql 0lks 7 i)l-irections 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. Whi/1yjr6khpf +am8sdkg + 9rrt* (u efjcq;qx1.ch of the following statements concerning this situatj( k.pc s khrxjymqe1r/d6rt;gf8*+ +u19 qfa ion is CORRECT?

  06.15: A crate of toys remains at rest on a sleigh as td6xuiq x65kg zew5) )ghe sleigh is pulled up a hill with an increasing speed. The crate is not fastened down to the sleigh. What force is responsiblg5w)exqdi 5kx6g6zu) e for the crate’s increase in speedup the hill?