99.36: What happens to the inertia of an object when (o c 7a/e0-s ifs4n8wq q)bk) yc5hrwkits velocity is doubled?

  02.14: An intrinsic property of matter g3 fbpmdj..p4dvyjmwd9- v2 9 is one that does not depend on the quantity of matter present. Which2djvy pp vfm .d9.gbj9m- wd34 of the following properties is NOT an intrinsic property?

  04.16: A 20 kg boulder rests on the surface of the E+*q4ulmu l2 opbif4)uarth. Assume the Earth has mo )mubfl ul+4p2qu i*4ass $5.98 \times 10^{24} \; kg$ 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 i /vtumifh-6 cb +;eo0xf)6aba s the magnitude of thm 0afe6bb ih )xo;v6tuc+-af/ e 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 o .z)x1ggxj.w1 nz9f4xq7zmwj bject’s velocity to increase while its acceleration decrease1wwxz.x9fzjx q)1nj .mg z7g4 s?

  00.11: A certain particle undergoes erratic motion. At every point inyi4h4fpioq9-m,ra j 8 its motion, the direction of the particle’s momentum is 4 q4j8hf,-iyrm9 poiaALWAYS

  17.14: A block is suspended in the air at the end of a string held byrly; o8y0*fo0go tw6h k/ 4nui 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 ;*0g/6o0tu4nio horlkf8yw y 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 constantmo 4mqv6y8m31)iypuok (n-mnj zu+0zly zero on the objemj018 nz6+)uo4 mmvmyzku3io-p (ynqct?

  13.28: An object is +c,w r6z k6;hm7ci+c9x bhh r4kqfll1 in free fall 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 and the magnitude ofk1wiczb 9,6mlhf7 h c lc4+rr xq;+6kh the acceleration from gravity is g.

  98.03: An object in equilibrium has thv7 ke1 foa u6n0qj mj(wem*+4bree forces, F1 of 30 N, F2 of 50 N, and F3 of 70 N, acting on it.em u071* job46v jeafwn+(qk m The magnitude of the resultant ofF1 and F2 is

  01.07: A force of 6 New7o(hh;1awgpic pw- x0ui/cz4 tons and a force of 10 newtons can be combine to form a resultant with a magnitude of whpzwcx ugh(ioc0- 1;iwh4p/7a ich of the following

  10.06: Which of the following statements is most closely associated witc m 1nz88g vt2g ;3+kxg7ixf to)sob4qh Newton’s Third Law of Motion?g 2b731tf)zs8mxi8xt4qg+;kovcg on

  95.06: The reaction force does not cancel theg8:73crc-qw 21a8k1 wsq r wa3tdhkje action force because:

  14.14: A box rests on the f n4 ;t;zux.kfp+ kkrs 74sk4ffloor of an elevator. The elevator is accelerating upward. Which one of the fkf4fn;kk ;k7 rstz.+4fs x4 puollowing choices 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 downwar f5sxr 9)o/ ew2.wsbzida; 3(nxrjb0od through the air with constant speed. Which one of the following choices correctly 9 0rzb /.ox;(sw5j r3wnisdeb x)fo2 adescribes the Newton’s Third Law pair force to the air resistance acting on the skydiver during the fall?

  06.08: A baseball is throwj2oo6zyu6:e( m bym7 xn by a pitcher with a speed of 35 m/s. The batterswings and hits the ball. The magnitude of the force that the ball exerts on the bat ism6:em(xyby2 o 7 6zuoj always

  11.13: A physics book sits at rest on a table. On top of the book is a calj4zd7*bp* y c:3nzvl3 bog,d wculator, also at rest. Which one of the following choices4cpvw 3lnzbz:7 ,* od3yjdbg* 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 conducting an experiment rewjs8*k ;m(wkblated to New;mbj * (kwk8swton'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 at the same timej:bqy.e/y(1qly) ane the mass of the object was halved,then the acceleratio qq:yy)lj 1(./an eyben of the object is

  96.15: A car whose mass is 150qns9f9 ; 6vpualw;1b b0 kg is accelerated uniformly from rest to a speed of 20 m/s in 10s. The magnitude of the net force acceleratsn69uwb;l;v9b fq 1paing the car is:

  99.05: A tractor-trailer truck is traveling down the road. The mass o/ w*3 xbe go. ,y:tjhon7o15hxpzw 6eof the trailer is 4 times the mass of the tractor. If the tractor accelerates forward, the for7h: hj p*z,1xtw3enx o.ygb/ e5woo6oce that the trailer applies on the tractor is

  99.16: Which of the following principles best explains why large tractor-tran*tpekxcr,2 2c5u8)8t vz 24hgdq 6z )civhkqiler trucks generally accelerate much more slowly that automk22 ,dh5*cc)vv8ncqtuheip24qtgr6z xz ) k8obiles?

  99.19: A 50 kilogram skz9zy b eln,(h- ld**8b /ctdkeater at rest on a frictionless rink throws a 2 kilogram ball, giving thehdc lzk(8ze,edt9l*yb-/* n b ball a velocity of 10.0 m/s. Which statement describes the subsequent motion?

  00.13: An object near )clxya:q (m;1z8ihp n the surface of the earth with a weight of 100 newtons is apxq):c(8n1hlzya im ; ccelerated at $4\;m/s^{2}$ . What is the net force on the object?

  98.25: A car whose mass is 12x atu ge 7umoy+m7b..*zbg4 h-00 kg is accelerated from rest by a constant force ofmbutm+g7 .xye*.hza g7u-4 ob 2400 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/m:s*gaxe 3;d ks slides across a rough horizontal floor before coming to rest. The frictional force acting on the block is 3.0 N. How far doe;:xdak*g e3ms s the block slide before coming to rest?

  95.38: A block with initial velocity 4.0 m/s slides 8.0 sxgjqsj6*:ki+ 9-kpam across a rough horizontal flooagqkk-xspji 6s+j *:9r before coming to rest. The coefficient of friction is:

  09.21: A 20.0 kg box remains at rest on a horizontal surface woud-1 hej6d9wyjre d- tl+1d9 hile a person pushes directly to the right on the box with a force of 60N. The coefficient of kinetiol9-etjrj61 ddyd 1-9uew+dhc 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 accelera-c y/d;uzug:q3 fz8;e 8rtuq otes 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 thet8 / o8u-:uyfu r;c 3;dqgzeqz coefficient of kinetic friction between the surface and the block?

  00.21: A car of mass m slidesips ,)0kmdl u) across a patch of ice 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 fric)dp0ku li,)sm tion 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 aw0)kl g2+p uuzg9wmj9cross a patch of ice at a speed v with its brakes locked. It then hits dry pavement and sju 2 +9kg)0wluwmpgz9 kids 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 c 5+5noypmgoq (ar's brakes anm+ 5qp(5 onogyd skidding to a stop. How far would the car have skidded if it had been traveling twice as fast?

  99.39: The driver of an automobile must carefully 6w8ejh0 bieze 3.iro0 control each of the following devices. Which of these devices caoi jw 38 rzi0heee.b06n 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 15000 newtons ;x9,yej88cf-j fcl) owye y a: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 to8ywy,y)fcec- 9lj exf;aj:8he Earth at takeoff?

  07.21: A box slides to the right across a horizontal floor. A person called Te 1ht)x,ebz m(mc/ v;)szgy .lqd 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 larzv;yxc)/1(mbsltz qh),.e gm ge 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 sho97uiarbv*h.i m.1iz hws 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 over9zmv iuh *7irhai..b1 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 tranxqxgzqrw(d3: h 2-h8 x7f2sv cks of equal length. Assume that on all tracks the roller coaster carts start from rest at the same elevatx3q 2 xqxf(g-zn2d vshh:r8 7wion 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 frictionlessly along gt7 , k+dyv*,-mixrhfthe curved track from point A to point C under the influence of gravity. What would be the direction of the cart's acceleration at po dih+r-,kmv xtfg7,y*int

  02.40: A box with a mass of 50 kg is dragged across the flwaf tll2w* y:2oor 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 rope is required to move the crate at a constant speed of 2l:2la 2tfwy*w0 m/s as shown in the diagram?

  04.40: A 6.0 kg block initially at rest is pushed against a wall by a 100 N fo cbgif)*el,uwm42 c ;erce al efm*e2ic, w ;ug)4cbs 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 block after a time of 1 second?

  05.10: A homeowner pushes a lawn mower across a horizont3. eiig yt e1-f1r7 v42vispgeal patch of grass with a constant speed by applying a force P. The arrows in the diagram correctly indicate trv7ftevi 4pg-.y 2 gie13ei1 she 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 ry3r 4/k*/kjj4pj jdmof the following statements concerning this situation is yj4/kj kpr4/ *jdm3r jCORRECT?

  06.15: A crate of toys remains at rest on a sleigh as the sleigh is pullee, usmr:. 4p re*fw+q.tsjws/d up a hill with an increasing speed. The crate is not fastened down to the sleigh.j/w*prfq+.meet: us , rsw4s. What force is responsible for the crate’s increase in speedup the hill?