99.36: What happens to txnj1ko:f i;g5; yk1tt4k7 r iwhe inertia of an object when its velocity is doubled?

  02.14: An intrinsic property of matter is one that bstf+z::2k o udoes not depend on the quantity of matter present. Which of the following properties i:2kut z:+ osbfs NOT an intrinsic property?

  04.16: A 20 kg boulder rests 2rr8 9ffq-nmoe0pkeh 0e(b8r on the surface of the Earth. Assume the Earth has mas om rhere80r-pfq8 (kbn02f e9s $5.98 \times 10^{24} \; kg$ 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 Ea q, hl 3k 93rouhbias)a+l.v:brth. What is the magnitude of the gravitational force acting on the earth by thkb)h ova3qh.+rai, slul3:b9e sphere? The Earth mass is $5.98 \times 10^{24} \; kg$ .

  00.09: Is it possible for an object’s velocity to increase while its acceleratjka eb3+3kmx5ql: z*18 cg dvzs c3i(qiomicxs*5azj1 +e8gcl qkk 3( 3q3 dzvb:n decreases?

  00.11: A certain particle undergoes e i70odgg wt1cs z*z/8drratic motion. At every point in its motion, the direction of the particlez t i1oc dg7d8*wsgz/0’s momentum is ALWAYS

  17.14: A block is suspended in the air at the end of a string held by a*s4w ig9/eci h person. The person pulls on thew i*4 /geic9sh 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 block?

  07.18: In which one of the following situations ir3-ntr qdf1v ( 87lekns the net force constantly zero on the objecqenr-k8 dr tv7fl1( n3t?

  13.28: An object is in free fall closef pnw0df)q rayl8 ,/:p to the ground. A person intervenes and slows the object uniformly to rest. Which one of the following statpa n0: ,rlfyp/) w8dfqements 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 of the acceleration from gravity is g.

  98.03: An object in equilibrium has three forces, F1 of 30 N, F2-co yz2gt7kqrw) z0+o of 50 N, and F3 of 70 N, acting on it. The magnitude of the resultant z-owz tky) 2coq0r+7 gofF1 and F2 is

  01.07: A force of 6 Newtonscu*+appo ys*,gbs0 :g and a force of 10 newtons can be combine to form a resultant with a *p apsyc0u +g*gob s:,magnitude of which of the following

  10.06: Which of the folloqkoa gl l+2/l;p*tx 13h1 zwkuwing statements is most closely associated with Newton’s Tx l;a+ tk*ulopzq11lgw k2h3/hird Law of Motion?

  95.06: The reaction force does n z*cu6q1huwq y0v4tjb)7;i rqot cancel the action force because:

  14.14: A box rests on the floor of an elevator. The elevator is accelerating aipkc eqt8,(;l m4g(wij 6-g supward. Which one of the following choices best represents the Newtonet4 si,k i(wpj86;mcgl a g-(q’s Third Law pair force to the gravitational force acting on the box by the Earth?

  15.15: A skydiver fal51 xtmm ao/2nfy 6pl*qiya2 8nls downward through the air with constant speed. Which one of the following choices correctly describes the Newton’s Third Law pair force to the air resistance acting on the s8*ynma152 ni2afx/lq pyo mt 6kydiver during the fall?

  06.08: A baseball is thrown by a pitche qjw.ue2v2a8rr 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 ir8v2j. qe2waus always

  11.13: A physics book sits at rest on am;pzf pq4z:4n table. On top of the book is a calculator, also at rest. Which one of the following choices is the Newton’s Third Law paif mz4;4p nqzp:r force to the force that the table exerts on the book?

  05.06: The students in a Physics I class were in la/ 6kvqzh; .rdsb conducting an experiment related to Newton's Second Law. The collected data were displayed6zd/;qrk .svh 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 whil3( wdm(a/ tvpje at the same time the masm3aj/ (v(tdpw s of the object was halved,then the acceleration of the object is

  96.15: A car whose mass is 1500 kg is ajmv,e4w ;qe0zxwj56aw)wyo rp ,- 5aoccelerated uniformly from rest to a speed of 20 m/s in 10s. The ma0e,54 -w ,jz qrx;oo p5weavwwa6)jmygnitude of the net force accelerating the car is:

  99.05: A tractor-trailer truck is traveling down tvwn(ska+vc0 0+aggg25m hlo* he road. The mass of the trailer is 4 times the mass of the tractor. If the tractor accelerates forward, the force that the+0w 2n* +5s v mggaavc0kgloh( trailer applies on the tractor is

  99.16: Which of the following principles3dsxwp *qyem fh62 ;9h best explains why large tractor-trailer trucks generally accelerate much more slowly that automobiles?we m;fhq632dpxs9h * y

  99.19: A 50 kilogram skater a (m1bvekg 16o2mum eb4t rest on a frictionless rink throws a 2 kilogram ball, giving the ball a velocity of 10.0 m/s. Which statement describes u emb6v1eom b41m(k2 gthe subsequent motion?

  00.13: An object nea9k)cnknlo ag 0um le h.d+k+.6r the surface of the earth with a weight of 100 newtons is accelerated at ku0k+hk 9lo +d6.e ma)c.g nln$4\;m/s^{2}$ . What is the net force on the object?

  98.25: A car whose mass is 1200 kg is accelerated/0yh 9py tp6ow from rest by a constant force of 2400 /o9p p6tw 0yyhN. 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/s slides across a rough hori;,7br pc 7 -cy+gd9vfepd.kavzontal floor before coming to rest. The frictional force acting on adk7-,9gvydv pe cr.cp + b7;fthe block is 3.0 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 across a rough horizonwx c6 -1 p2bi(tj paxgwlef,;2tal floor before coming to rest. The coefficient ppj1x ;a2ewwcfbx-gi2(,6 l tof friction is:

  09.21: A 20.0 kg box remains at rest on a h 6g lto69b(2xnncoxdv3th; 2vorizontal surface while a person pushes directly to the right on the box with a force of 60N. The coefficient of kinolx;cg 9h vn6to23tb6v 2x( dnetic 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 ree/;mr gj)wcg (st on a horizontal c/)e (;gwm rjgsurface. 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 of/)en/st k:pjtn :8tuk z 9 m,zxe gw+ecz,o(,z 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 friction between the tiresku z:/ttj,8(nwznzc )etpmx+e:9zg/s e,k ,o 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 akr5 bhy ek5z( -ca*)gi speed v with its brakes locked. It then hitre- )i5 *y k5hgbkz(acs 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 anif8 l+ ljui*r1 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 travelllrj+ii*8f 1uing twice as fast?

  99.39: The driver of an automobile must carefully control each of the follo) a0 zdqmbm35-ke o2 0ttr(kxbwing devices. Which of these devices can cause an accelq5t 2mk3krmdab0 o-t) bx0 ez(eration in a moving car?
(1) the break pedal ( 2) the gas pedal ( 3) the steering wheel

  00.25: The net force on a ro ad.:w6d b1 ec fyrr72d)9pslucket with a weight of 15000 newtons is 24000 newtons. About how much time is needed to increase t:erp1.u df79)d2a6ws ycb r ldhe 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 cal1 g9xoakv+vtx w8)ih) led Ted exerts a force T to the right on the box. A person called Mario exertvg9+)1htiak vwx8o x) s 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 roller coaster tracks x14f4 itq u.s;0etkwzof equal length. Assume that on all tracks the roller coaster carts start from rest at the same elevation and fxu;e04kq 1t t4.sziw 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 tr*zv(1u vwyt0nacks of equal length. Assume that on all tracks the roller coaster carts start from rest at the same elevation and moves frictionlessly over the tracks to the finish (vw u01nyvt*z.
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 frictionless9fg:m xp6iy (nly along the curved track from point A to point C under the influence of gravity. What would be the direction of th xpimy9g6:n (fe cart's acceleration at point

  02.40: A box with a mass of 50 kg is dragged across the floor bjrc5 w*,e,yi z k*oiirw4y*m -y 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 flow i-,yiz*rr4yj*c 5mk *,e iowor 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 blocla s)-fj /a7thk initially at 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 the friction actin )js7aafhl-t /g on the block after a time of 1 second?

  05.10: A homeowner pushes a lawn mower across a horizontal patch of grass with:jfk c;z1/wu) yo ow0e 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 akwz o)u10ocj;fey/ :w mong the various force magnitudes, W, f, N, P is CORRECT?

  06.14: A book leans against a crate on a table. yo*tf-la r ;l cf;*.147v/s xhghfizcNeither is moving. Which of the following statements concerning tf*x ;hvr;f4t *i/. c7c flyh ls-z1ogahis situation is CORRECT?

  06.15: A crate of toys remains at .-veon 30rka yrest on a sleigh as the sleigh is pulled up a hill with an increasing speed. The crate is not fastened down to the sleigh. What force o rnve0ya-3 .kis responsible for the crate’s increase in speedup the hill?