99.36: What happens to the inertia of an object 2 pgaawq u u/kkgf 4:ot3+v;0u9i-pqqwhen its velocity is doubled?

  02.14: An intrinsic property of matter is one that does not depend p/,yjcr- d.*af 9omzfon the quantity 9c/ ap. -*rof,fydjzm of matter present. Which of the following properties is NOT an intrinsic property?

  04.16: A 20 kg boulder rests on the surface of the Earth. Ass46zumgp tqn-, 86yner ume the Earth has mass g,pe 4tn 8y zr-mn6q6u$5.98 \times 10^{24} \; kg$ 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 surlu4qu4jx6*zt.vhu: p face of the Earth. What is thx 44zp*:.6tvuj uqul he magnitude of the 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 object’s velocity to increase while its accele(cxtp547f(ng - ngs2ctdi* rtrationc5sgg 7x( tnt(-d4f *r2icntp decreases?

  00.11: A certain particle undergoes erratin8zt0zdt109 xsu lfc rlm3s -+c motion. At every point in its motion, the direc+01sm -t 8ulsdrznxl3c90ftztion of the particle’s momentum is ALWAYS

  17.14: A block is suspended in the air at the end lu(0du* 5w0*ftkqp. oye+vo kof a string held by a person. The person pulls on the string uniformly accelerating the block upward for a short time. During this tkouv.o( qt k 05elwdyp*uf+* 0ime, 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 is the net forcez8aqp .z5 3se4 hb0pbra (ler8 constantly zero on 3hb(eb5a z80as r 8p4 pleq.zrthe object?

  13.28: An object is in free fall clos c q/f,xygwswg1r3:9fgdb2z .25yj pse to the ground. A person intervenes and slows the object uni/2 zwffwj:1 ds 5sg.rqcp,x9y23yggb formly 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 of the acceleration from gravity is g.

  98.03: An object in eqt fh63m-nv8nouilibrium has three forces, F1 of 30 N, F2 of 50 N, and F3 of 70 N, acting on it. The magnitude of the result h-n38mvfn o6tant ofF1 and F2 is

  01.07: A force of 6 Newtons and a force of 10 newtons can hgx22lfszkb19o/:kqh0 ff3:c ( vtpe be combine to form a resultant with a magnitude of fgl9z2fkx c1b:3ve ohqp02fs / ht:k(which of the following

  10.06: Which of the following statemenyc,4 5ht4ahvwts is most closely associated with Newton’s Thiavywc5,4 t hh4rd Law of Motion?

  95.06: The reaction force does not cancel the a; + lpugz,9trurjy*lr-8z zc 8)ee+pz ction force because:

  14.14: A box rests on the floor of an elevator. The ele (b;gt/63(cgv 8-pip e kugkvtvator is accelerating upward.ic t3k/et(86vg g ;ugpk (pv-b Which one of the following 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 downward through the air with constant speed. Which e4y,; (jbuvi7ta1vv/np6s2p s dvj/hone of the following choices correctly describes the Newton’s Third Law pair forb ajtu 6yvs4ds/ vjevn7p1h /(p,;2i vce to the air resistance acting on the skydiver during the fall?

  06.08: A baseball is thrown by a pitcher wircj;; uh5its b (l(wy3th 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 alwayj;b(l shy;u(ic 53trw s

  11.13: A physics book sits at rest on a table.8zu 0fxtfti1. On top 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 table exerts ot1tx0u8fi z f.n the book?

  05.06: The students in a Physics I clag9 yb6u7- y)qigq:uh zi(o5bc ss were in lab conducting an experiment related to Newton's Second Law. The collected dyhby9b o6igqu) z7c 5u(q:gi-ata 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 drcs0e ezi ud2t/xb)8+oubled while at the same time the mass of the object was halved,t rex u2dci/ +s8ebzt0)hen the acceleration of the object is

  96.15: A car whose mass is 1500 kg is accelerated unifor()ljkus -1mri6m4jod/ ru6m rmly from rest to a speed of 20 m/s in 10s. The magnitude of the net force accelerating t1 umrdjjrk6o/m4s ()u- r m6lihe car is:

  99.05: A tractor-trailer truck isx8/hdxvsobo 12a :g o2 traveling down the road. The mass of the trailer is 4 times the mass of the tractor. If the tractor accelerax1:8doxs 2 o vh/ob2agtes forward, the force that the trailer applies on the tractor is

  99.16: Which of the folgicngw9tkz 2:0lddmwa fr0619q4 1oc.e m j- blowing principles best explains why large tractor-trailer trucks generally accelerate ct0c dgz62lw:goq4f0 na j9e1b19rdw ikm- m.much more slowly that automobiles?

  99.19: A 50 kilogram skater at rest on a frictionless rink throws a 2 kilogdml( ojjz.ffnn 6) 5p;ram b.zjomf 5f(j 6dnnl);pall, giving the ball a velocity of 10.0 m/s. Which statement describes the subsequent motion?

  00.13: An object neawp q0kz*dc 7n,8v3rlyr the surface of the earth with a weight of 100 newtons is az37k,dw qvn0pryl 8*cccelerated 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 for2v,,ki (csocm ce of 240 ,vkmcic(o,s 20 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/s slides across a rough horizontau ins p*nds4j;myn4an1*34 hwl floor before coming to rest. The frictional force acting on the block is 3.0 N. Hoi*ju3pnn4 wsd * ;ny1mhn4as 4w 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 ro1 cw ga:dsb2) rl2f3n xnp6+w9tt m8 mm7,mfzwugh horizontal floor before coming to rest. The coefficient of frictwmsad mctfx 9p znw 6bwn 1+3287:,lmtr2fgm)ion is:

  09.21: A 20.0 kg box remains at rest on a horizontal surface while a person push3 jpuxxr;ytgg odx8/6 .)c7kx*k/ srtes directly to the right on the box with a force of 60N. The coefficient of kinetic friction between the r6x .t 3dxoxrp/xgy7/g * jsk )8kc;tubox 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 rest on a horikyhkb* 12 54 l, li;tv*hafsqizontal surface. The block travels a distance of 12.0 m dura; 4tkih*livq2ylhf 5*1 k,s bing 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 slieth 3h yt247hmdes 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 friction between the tires and the dry road is μ m2h h7ty4h3et .
If the car had a mass of 2m, it would have skidded a distance of

  00.22: A car of mass m slides acro 4tut;5/j c5-m iwucupss 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 coefutcc-5 j;/pw54u uitm ficient 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 slammazu(::t9ltj u 5 .ud qcr,0sxging on the car's brakes and skidding to a stop. How far would the car have skidded if it (ts. j0: :rudgx 9uul,q5cat zhad been traveling twice as fast?

  99.39: The driver of an automobile must carefully control each of the frb7v05msf) xk ollowing devices. Which ofsvx 0m7b)r5kf these devices can 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 is y.l;s(qqo o lp5b89 xn24000 newtons. About how much time is needed to increase the rocket ’ speed from 12 m/s to 36 m/s near the surface of the Earth at takeof ;5nol s(qbl8q9.xopyf?

  07.21: A box slides to the w*y p/gk+tr6s dt+d;hright 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 +y6wkp+d hgst d r*/;tthere 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 f/99-g8zqrfw hc9nqvk b49nt tracks of equal length. Assume that on all tracks the roller coaster carts start from rest at the same elevation and moves frictionlessly over nvcbq9 h4f/r9k wnz989tqf- gthe 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(2xrim.pi g80xmw*t.w ( b akyacks of equal length. Assume that on all tracks the roller coaster carts start from rest at the same elevation and moves frictionles ( mky.pxit0 rbgw wi2*8mxa(.sly 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 9/tlz o3:oiwl curved track from point A to point C under thew o3:ol/il9t z influence of gravity. What would be the direction of the cart's acceleration at point

  02.40: A box with a mass ooljuyv : 5yi*3f 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 thlu *5ij: 3vyyoe 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 20 m/s as shown in the diagram?

  04.40: A 6.0 kg block initially at rest ixh 3vhg -kyc1d y)4h+.c9myqcs 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 acting on the g ycy)+d- qvc3mh14yhcxk9h.block after a time of 1 second?

  05.10: A homeowner pus2 uhwz x88,yh5en 7ferhes a lawn mower across a horizontal patch of grass with a constant speed by applyine82hw, rn 5 heyuxzf78g 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, W, f, N, P is CORRECT?

  06.14: A book leans against x7e* jbp/kq5y a crate on a table. Neither is moving. Which of the following s7/ybqkx pe j5*tatements concerning this situation is CORRECT?

  06.15: A crate of toys remains at reso:l 4vyqew 1k(t on a sleigh as the sleigh is pulled up a hill with an increasing speed. The crate is not fastened dv:(el k4w1yoq own to the sleigh. What force is responsible for the crate’s increase in speedup the hill?