99.36: What happens to the inerti-lo/4k csjma1a of an object when its velocity is doubled?

  02.14: An intrinsic property of matter is one that does not depend on baez, .2ubbblw2eh i08 / nwp/the quantity of matter present. Which of the following properties is NOT an in /hb wl8iee/u,apb02b2. bzwntrinsic property?

  04.16: A 20 kg boulder restv jq:2yib+ y 6v gtfw929:obggs on the surface of the Earth. Assume the Earth has mass :bqtb9:2 g9j f2yoygvi+v6gw $5.98 \times 10^{24} \; kg$ 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 tj+6,*j k(bcrnhb3vxk) y;gskhe surface of the Earth. What is the magnitude of the gravitational force acting on the earth by the sph,kgkrc6b(j byx3+ jh ;vsn)k* ere? The Earth mass is $5.98 \times 10^{24} \; kg$ .

  00.09: Is it possible for hel,-j vmrhtdi77, i 6an object’s velocity to increase while its acceleration-l eh jr ,,67h7tidivm decreases?

  00.11: A certain particle undergoes erratic moti :( c 4* 3:ai8vkvxgse:jciavoon. At every point in its motion, the direction of the particle’s mo(av: kac:4i j83 ex:ogi csv*vmentum is ALWAYS

  17.14: A block is suspended in t98iz, wj t+b d,+4edglx zxqj1he 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 choices correctly identifies the Newton’s Third Law pair force to the force of the string on the blockz+j jxwbdt dqigx,91+l e 8z4,?

  07.18: In which one of the following situations is the net force constantly ze jdgw3gu i1ar 6m(us8/b:9px hro on the ob189xgg: w3hdrp jbsu /(uiam 6ject?

  13.28: An object is in free fall close to the ground. A person intervhf 6amnzvt,/vv06 ;9 v,wmqgmenes and slows the object uniformly to rest. Which one of the following statements must be true about the magnitude of the acc9,h06v nv mmftg;vq/,w m za6veleration 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, F2 of 50 N, and u e -rax.hc6a1F3 of 70 N, acting on it. The magnitude of the resultant ofF1 and Fcaex au6h- r.12 is

  01.07: A force of 6 Newtons and a force of 10 newtons can be combine tohm 3-uspqr4,ts e9vf4 form a r vpssu-q39ef m4,4t rhesultant with a magnitude of which of the following

  10.06: Which of the following statements is most closely associated with Newto8p qy+;*o 9lc-nfpsxd n’s Tqsf+dpo pl*cx9;-8y n hird Law of Motion?

  95.06: The reaction force does nqk ,r5;r( deh02jj omjot cancel the action force because:

  14.14: A box rests on the floor of an elevator. The elevator is accelerating ( 6fj3gssdxb*6o 8n jtupward. Which one of the following choices best represents the Newton’s Third Law6 6t(sfsnodbx *jj8g 3 pair force to the gravitational force acting on the box by the Earth?

  15.15: A skydiver falls downward through the air wmdph by0yc/* 3ith constant speed. Which one of the following choices correctly describes the Newton’s Third Law pair force to the air resistance acti/yp b0hcmy*3 dng on the skydiver during the fall?

  06.08: A baseball is thrown by a pitcher with a speed of 35 m/s. The battsn( )qc+a*-9qk kxcy terswings and hits the ball. The magnitude of the force tht cqqsk+)x *k cy9-(naat the ball exerts on the bat is always

  11.13: A physics book sits at rest on a table. On to qkpr7npg 66)pp of the book is a calculator, also at rest. Which one of the following choices is the Newton’s Third Law pair force to the force thprqp6) 7pg6nkat the table exerts on the book?

  05.06: The students in a Physi z6+zawp t)pn 50 -jbnrt:7y+xxmq2gi cs I class were in lab conducting an experiment related to Newton's Second Law. The collected data were displayed on the graph at the right. From this graph, whng np+w:tqzm0 t 2ry6jzp-+i abxx5 )7at conclusions can the students make?

  99.03: If the net force on an object were doubled while at thela;ochb:)4b wy x/.g j same time the mass of the oyjh/o);bax4bcg lw: .bject was halved,then the acceleration of the object is

  96.15: A car whose mass is 1500 kg is accelerated uniformly from rest to a spe*66gm rdv*tbaet+qu 8e;2 .lkew :q bned of 20 m/s in 10s. The t meq ;r6udb l :.v*ngte8 ae+6qw2bk*magnitude of the net force accelerating the car is:

  99.05: A tractor-trailer truck is traveling down the road. Trsup flm7yf e)4ly31( he mass of the trailer is 4 times the mass of the tractor. If the tractor accelef( f1us7yl)epl43ry mrates forward, the force that the trailer applies on the tractor is

  99.16: Which of the following principles best explains why large tractor-tjkw9: y8hl6o erailer t68 9wl hyoek:jrucks generally accelerate much more slowly that automobiles?

  99.19: A 50 kilogram skater at rest on a frictionles.v46c+jp+ oe 6o exmers rink throws a 2 kilogram ball, giving the ball a velocity of 10.0 m/s. Which statement 6cmpr o6j o e++4xeev.describes the subsequent motion?

  00.13: An object near the surface of the earth with a weigv2 (hpg uu.gd5ht of 100 newtons is accelera5.g(h2d gpvu uted 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 constant fockw7hl) 3qu(z1 ujaw; rce of 2400 w;c3q1kaz uuw7)lj h( N. What is the speed of the car 8.0 s after beginning?

  98.32: A 3.0-kg blockcmkzs-/i ej; ; with 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 /s im;ze -jk;cdoes the block slide before coming to rest?

  95.38: A block with initial velocity 4.0 m/s slides 8.0 f:f k04ujoa+d m across a rough horizontal floor before coming to rest. The coefficient of frictionf0+do4f u: kja is:

  09.21: A 20.0 kg box remains at rest onb1ui elo 1t3*s a horizontal surface while a person pushes directly to the right on the box with a force of 60N. The coefficient of kinetic friction betweios13 lt1b*euen 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 initian.e6o/x - fxtvw3h doos1. ;nally moving at 8 m/s accelerates 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 coefficient of k aw/teh..o 3f6n;xosx1nodv-inetic friction between the surface and the block?

  00.21: A car of mass m slides iaj u8mymjm1u9 cd cl)88boi*- e*h1tacross a patch of ice at a speed v with its brakes locked. It then hits dry pavement and skids to tbm mm l i9e*dj 8oj) 1c81ahuuy*ic-8a 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 g ysbww,*)q jr/ija: w;+.ekoice 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 frictirb)wa,ks.gw/q* w oyj i;j+:eon 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 i lsq,3acodg+*4kh0san emergency stop by slamming on the car's brakes and skidding to a stop. How far would the car have skidded if it had been traveling two +*cs s4qld kg0a3ih,ice as fast?

  99.39: The driver of an automobile must carefully control each of thib v c(9m38b/.hol cuz 5x2prfe following devices. Which of these devices can cause an acceleration in a moving car? .xlmc538c b9ruhpibfz 2o (v /
(1) the break pedal ( 2) the gas pedal ( 3) the steering wheel

  00.25: The net force on a rocket with a weight of : . gufqmw m8jp3zb//g15000 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 them3 bguw/:/.q 8fzpjmg Earth at takeoff?

  07.21: A box slides to the right across a horizontal floor. A person call(4k becni1 ,wped Ted exerts a force T to the right on the box. A person called Mario exerts a force M to the lnwbk(ie, p14c eft, 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 roller coaster tracks of a3i1ue/ 9ner hkdkf z u(/3r+tequal length. Assume that on all tracks the roller coaster carts start from rest at the same elevation and moves frictionlessly ove+(i f3r tk/r d/uun3ahe91kzer 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 e t-pgs;zw)as ,qual length. Assume that ;psgwzs- a,t)on all tracks the roller 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 ro*g4;4zz; pk,utcm0qdx f pi2tllercoaster cartrolls frictionlessly along the curved track from point A to point C under the influence of gravity. What would be the direction of the zd ,zpt42tucgm ;4if*kx0 q ;pcart's acceleration at point

  02.40: A box with a mass of 50 kg is dr31ru g:yu;9pp0 lnk doagged 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 :n1r3k updup ly; o0g9and 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 at rew l* h02;busc,7 jrzscst 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 ofssh,rc2jzl* b0;uw7 c the friction acting on the block after a time of 1 second?

  05.10: A homeowner pushes a lawn mower acri/cl)u-4p-*gok*zq (bb)ryny gx/ x boss 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 the lawn mower. Which of the following relations among the various force magnitudes 4bgigqlupk n)x/b-)x/*zr-b(y co y*, W, f, N, P is CORRECT?

  06.14: A book leans against a crate on a tablhktr6rj4jcv 5;5u +b c4zmy -oe. Neither is moving. Which of the following statements concerninmc h 5rurb4 ko6-;vcjy4 jz5t+g this situation is CORRECT?

  06.15: A crate of toys remains at rest on a sleigh as the slebd s vit-4j)i3igh is pulled up a hill with an increasing speed. The crate is not fastened down to the slejv4ti-s3 ib)digh. What force is responsible for the crate’s increase in speedup the hill?