99.36: What happens to the inertia of an ob;mua2mr3 *nwah5kr0 iject when its velocity is doubled?

  02.14: An intrinsic property of matter is one that does noto: k(nh,74jnmvhh- rm depend on the quantity of matter presentojhnkn47-h, v mm:rh( . Which of the following properties is NOT an intrinsic property?

  04.16: A 20 kg bouldergauz 2,ik0 3gfm ,fsv. rests on the surface of the Earth. Assume the Earth has mass f032fms,,u g gz a.vik$5.98 \times 10^{24} \; kg$ 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 sphess:-ly+*bs + ( esrelyre is in free fall near the surface of the Earth. What is the magnitude of ts+-+b l:sysl*r(ee yshe gravitational force acting on the earth by the sphere? The Earth mass is $5.98 \times 10^{24} \; kg$ .

  00.09: Is it possible-ng 91 enhddg: for an object’s velocity to increase while its acceleration decreasesd1gn hgd9e-n:?

  00.11: A certain particle undergoes erratic motion. At every point thv3uk2 , 5 pxq ,2cty:3tfgcyin its motion, the direction of tgcyt pcv32 5f :tx kuyth,q3,2he particle’s momentum is ALWAYS

  17.14: A block is suspend*xre+bo7hm)1 :kr b uved 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 choices correctly identifies the Newton’s Third Law pair force to the force of the ste1 u7xk+*m:)vrh bbo rring on the block?

  07.18: In which one of4fr3d2 qfxsdb/9goy ) the following situations is the net force constantly zero on ) 4 2ysrdfdbo/gxqf93the object?

  13.28: An object is in free fall close to the ground. A o; :j2tu-ehw q f,(q,h/rka*7b g pnjlperson 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 mag oe: ,hj,uqa2;7lph(jr-nw /f*bgkqt nitude 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 jto5n 2d5w gf;sg5k4zF3 of 70 N, acting on it. The magnitude o ftgnkj 5s;z52d4o5wgf the resultant ofF1 and F2 is

  01.07: A force of 6 Newtons an4f/iss:xre9/,x d b aqd a force of 10 newtons can be combine to form a resultant :sbexs dr a,9i4x//qfwith a magnitude of which of the following

  10.06: Which of the following statements is most closely as0 (4kc*qfah2o; u dxct9 /kpujsociated with Newton’s Thirkpct* u d;/jc0ux ah42qfk(o9d Law of Motion?

  95.06: The reaction force does not cancel the action forces(maahu 73t: jgaz-3w because:

  14.14: A box rests on the floor of an eleva (hh6kzb+q,va7vsl, itor. The elevator is accelerating upward. Which one of the follov6bq, +k hasi7lzh(,vwing 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 downwa/fhy zfo(+c(v(6l7 yfmpm d4(-g vdtxrd through the air with constant speed. Which one of the following choices correctly describes the Newton’s+ 6yp/mc fo((hdv4 lgx-fdm(t(yv7fz 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. 7d( oauxnf 5)cThe batterswings ancx7f)n uda( 5od hits the ball. 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. On top app6vg8h5d z0eaml1rr6y,aq4 m4w- i 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 that the tabaqd8p1 r 06v -alzmwimgp4re h4ya5,6 le exerts on the book?

  05.06: The students in a Physics I cla: d1/+,/niv4*to l q y vv(zzytrqvtc0ss were in lab conducting an experiment relazozny dtvq1(+ t:/4ytv*iv, r0l q /vcted to Newton'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 tizx 7 7)iqd 7d8 qc yg,r9qa:h/(tjbrplme the mass of the object was halved,then the accycb, :qi zrj(8 d/g7ph dr)q7 9qltax7eleration of the object is

  96.15: A car whose mass is 1500 kg is accelerated4,2jv sj*6c41h3bycls 7muklfdr0y m uniformly from rest to a speed of 20 m/s in 10s. The magnitude of the net force acceleratirb6lhuclj dcj 40m*ms 1y72f4kvys 3,ng the car is:

  99.05: A tractor-trailer truck is traveling down the road3/4vf 7n trixq. The mass of the trailer is 4 times th7 q 3itxrvf/n4e 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 principles1z-tfxex0f-w5 5rnzj 0(r tfd best explains why large tractor-trailer trucks generally accelerate muchx5xd zt-nf05ertwrf10jz-( f more slowly that automobiles?

  99.19: A 50 kilogram skater at rest on a frictionless rink throws a 2 kilogr5g /,eo9rhxnpam ball, giv 5gxeo,h9pn /ring the ball a velocity of 10.0 m/s. Which statement describes the subsequent motion?

  00.13: An object near the surface of the earth with a weight le1k +y elni)wl)02p1w uo l-qof 100 newtons is acceleratey0-1)q 2k)+1 i leownllwl uped 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 reznlcb)y viql00u-ms ;dua57* st by a constant force of 2400 N. What is the speed of the car 8.0 s after beginn*;c5vnqlb0a) izl y 7u-dm us0ing?

  98.32: A 3.0-kg block with initial speed 4.0 m/s slides across apubj qn.c1* p2 ngij4- rough horizontal floor before coming to rest. The frictional force acting on the block is 3.0 N. How far does the block sli bc jg -.u2j41innqpp*de before coming to rest?

  95.38: A block with initial velocig2 h8i+2x, ikx:dn 4z u9goo heyln:(kty 4.0 m/s slides 8.0 m across a rough horizontal floor be,9+y2o:ihnexih l k g8k dno( :4gux2zfore coming to rest. The coefficient of friction is:

  09.21: A 20.0 kg box remains at rest on a hord n.3dcr;k1j/2 pxsz//i wqui izontal surface while a person pushes directly to the right on the box with a force of 60N. The coefficient of kinetic fricu /qid ;x1p3rnk/ w2. zsd/jcition 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 unifo ht5pe6ed1a:mrmly to rest on a horizontal surface. The bt1dp5 6:hme aelock 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 of ice at a-s4p tkk2hy/+g oory, speed v with its brakes locked. It then hits dry pavement and skids to a stop in a 4ho 2 trg,+yky-o/ kspdistanced. 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 it g bsbo57fhqpy56v;0yg o-7xms brakes locked. o fg ypsbx;y g75b0h6oq7-5mvIt then 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 cp 4ipyv11e gfahwk(8l4pm(.az09ooh ar's brakes and skidding to a stop. How far would the car have skidded p0fpl4kog.8p av1(1zm4y9aow(h i eh if it had been traveling twice as fast?

  99.39: The driver of an automobile must carefully control each o3h4mauxf )l; g pkry3m 3d.gr8oux0b 5f the following devices. Which of these devices can cause an acceleration in a mov o8gx.3hbmfpk3 u43rd5uma )ly g;r x0ing 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 is 24000 ndm;fd9)w4n s8zyq m 6newtons. About how much time is needed to increase the rocket ’ speed fr4;md6mz8)wfyn q9ndsom 12 m/s to 36 m/s near the surface of the Earth at takeoff?

  07.21: A box slides to t5ciz7-hcvm/ n he right across a horizontal 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 anch- /mvi5cz n7d 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 trac( dj0syx/z).qy5h/wbb 0t jnzks of equal length. Assuwy 0sxby 0q ./ndbt()hj/jz 5zme that 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 be traveling the fastest at the finish?

  02.28: The diagram below hci, jgv0u.p h)o m2 k t,lcycq3m),s/shows three roller coaster tracks of equal length. Assume that on all tracks the roller coaster carts start from rest at the same elevation pcyikoh c mvcm. h ,j2lu/q ,s)0t3,g)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 the curved track 8rnvp+ou)l w9 from point A to point C under the influence of gravity. What w8pnol+)wu v 9rould be the direction of the cart's acceleration at point

  02.40: A box with a mass of 50 kg 0zrq+aq7 (.prt;ej m7 zjy(1 gmpaq)jis 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 coefyq rmzt)a 1 mrj7za+(pj7qpq ; (g0e.jficient 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 20 m/s as shown in the diagram?

  04.40: A 6.0 kg block inifo1; tt:lv7 hnk48tu vtially at rest is pushed against a wall by a 100 N force as shown. Thecoefficient of kl thtko4vn8 1f:vu7t;inetic 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 mo,ceipet+ 5sm(x)t 6isur4xa (wer across a horizontal patch of grass with a constant speed by applying a force P. The arro(5)sm tpt+4x(cuxr ei6sie ,aws 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 CORRECT?

  06.14: A book leans against a crate on a table. Neither r+ ;5 cgybk,b/a qbouw;v3f: ris moving. Which of the following statements concerning this situation is fu:bw+bb 5;oq;gyvk3cr/ ra, CORRECT?

  06.15: A crate of toys remains at rest on a sleigh0t5ir7w/cqtish7)*7f yiqnr 1 bl c.e as the sleigh is pulled up a hill with an increasing speed. The crate is not fastened down to the sleigh. What force is responssinq0q le)/ybtrt.c i71*h5 7cwf r7 iible for the crate’s increase in speedup the hill?