99.36: What happens to the inertia of an 2 r;rv4qap)zl object when its velocity is doubled?

  02.14: An intrinsic property of matter is one that does not depend on the quanti,-- fj96swzx)og hf+2nqd qqfty of matter present. Whichqzf2,g)sfxnq9fd-+oh-6w q j of the following properties is NOT an intrinsic property?

  04.16: A 20 kg boulder rest)) pmqw zj*rg9s on the surface of the Earth. Assume the Earth has mg*)rz9pmj wq)ass $5.98 \times 10^{24} \; kg$ 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 E jfvb *fkx1ag7i8x3/e arth. What is the magnitudv3xa8 ffg e/ ijx*kb71e 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/,h cf yadxckc,. 3-vp while its acceleration decreasesdkh-y p ,x f,3.cv/cac?

  00.11: A certain particle undergoes erratic motion. At every point in its mi2bu 9 3rdrt1botion, the diub 3 rtb12i9drrection of the particle’s momentum is ALWAYS

  17.14: A block is suspended in the air at the end of a string held byiqc7*7+w7-dh tberb0 h )otpa 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 Lar*hte07- o7b7pbaci)htw q+dw pair force to the force of the string on the block?

  07.18: In which one oela km+t 3-g c. ;rth.ru;zx7uf the following situations is the net force constantly zero on the object;t7;zgt .r3 . hcmr-uaekxu +l?

  13.28: An object is i,xg fbt.w j3wg* 3v7bpn 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 acceleratio33wvxw tfb.bg *j, p7gn is a and the magnitude of the acceleration from gravity is g.

  98.03: An object in equilibrium has three forces, F1 of 30,ju4 x n6hi9rgy15c xg N, F2 of 50 N, and F3 of 95r1ig x,4cghx uyn6 j70 N, acting on it. The magnitude of the resultant ofF1 and F2 is

  01.07: A force of 6 Newtons and a 53k kiv: lwy -oqf.ko:gf3b:uforce of 10 newtons can be combine to form a resultant with a magnitude of which of the fol:lvfwkuk:oyq o5 b3:f ig.-3klowing

  10.06: Which of the following statements iseml0o4a-tvx1 most closely associated with Newton’s Third Law of Moti0t41 aelmvo-xon?

  95.06: The reaction force does not canceyn(j kc)qtk82*s qkii0b t*c; l the action force because:

  14.14: A box rests on the floor o xs5kb::d nx0,bm4xk tg)l 8tlf an elevator. The elevator is accelerating upward. Which one of the following choices best represents the Newton’s Thirt,8x 4:sgx5m kdltnlxkb: ) 0bd Law pair force to the gravitational force acting on the box by the Earth?

  15.15: A skydiver falls downward throu*j*jyd upg:d -gh the air with constant speed. Which one of the following choices correctly describes th-y *g*jpd duj:e Newton’s 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. The batt-k iw97dz8 4bd 1p3cconv 2wmnerswings and hitswv3dkin274 c-dc1 m obw9z pn8 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 of the brsdkc7* qcej xq* 5*-m,fc zd(ook 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 exer*s-( e5xcdjc*fk* c7q ,zqmd rts on the book?

  05.06: The students in a Physics I v5k4 jtpvyz -),4rkk tclass were in lab conducting an experiment related to Newton's Second Law. The collected data were displayed on the graph at the right. Frokjkvttp5z4)yk , rv4- m this graph, what conclusions can the students make?

  99.03: If the net force on an objec1 d+ujcqlqos 5oa 2f-3t were doubled while at the same time the mass of the object was halved,then the acceleration of the object cuo1d2q s+q j5 fla-3ois

  96.15: A car whose mass is 1500 kg is accelerated un*a:qb 4bxy9et uz cr)io e/(,eiformly from rest to a speed of 20 m/s in 10bo,*x yb) zuae te/q4ei(r9c :s. The magnitude of the net force accelerating the car is:

  99.05: A tractor-trailer truck is traveling down the road. T-xfi4mxi hr /qjce6wvd(5:/whe mass of the trailer is 4 times the mass of the tractor. If the tractor accelerates forward, the force that the traile4x/-iex mh/drjw5i 6qfvwc (: r applies on the tractor is

  99.16: Which of the folls); t5srdr xw;/axau6 owing principles best explains why large tractor-trailer trucks ge 5x/t;);ada 6sxursrwnerally accelerate much more slowly that automobiles?

  99.19: A 50 kilogram skater at rest on a frictionless rink throws a 2 kilogram bi 2zh1l/x ii bh)i6fm5g0bs*x a*h2b6bhi)z1ixx0lfs i 5ig/m ll, giving 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 of 100 nev qpy6g h97 xil8ss6t ifxm*19wtons is accelerl8hxs* it xy96 f7ivp1 qsg6m9ated at $4\;m/s^{2}$ . What is the net force on the object?

  98.25: A car whose mass is 1200 kg isqgk s,a./ 6pvy accelerated from rest by a constant force of 24v,pkq6.ay s /g00 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 hort viy3glab/*e pf0 *a+02iy gqizontal floor before coming to rest. Ty2l a0ai q3*gpby+ iv0gfe/* the frictional force acting on the block is 3.0 N. How far does the block slide before coming to rest?

  95.38: A block with initial veloc 2-o77fia f8-(aga b 5igtnyovity 4.0 m/s slides 8.0 m across a rough horizontal floor before coming to rest. The coeffavgbf-oa-io 77y g2ta( f5 8inicient of friction is:

  09.21: A 20.0 kg box remains at rest on a horizontalm bcls( .pt *l me1a203kf/awo surface while a person pushes directly to the right on the box with a fpslwte2* 1fok3/b0a(a. l mm corce of 60N. The coefficient of kinetic 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 revj;3b9t zr:3-q mlnek7dhn u1 st on a horizontal surface. The block travetl:h3 7rnejdukbz19 3 nm;v q-ls 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 speede 4(nz8li uc 4etw/6ew5uf:gu 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 tuw:4ze4 ti(/cegelf6wu8u n5he 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 irtb jy z(,w )/cua0kg1ce at a speed v with its brakes locked. It then hits dry pavement and skids to a stop in a distanced. The coefficient of kinetiz/,0 ug)c trbkawj(y1 c 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 car's bta u shn. y):bpq4p97lrakes and skidding to a stop. How far would the car have styq.s 4b9hl na:p 7u)pkidded if it had been traveling twice as fast?

  99.39: The driver of an automobile must carefully control each omt617y)fwhmh -n o fe3f the following devices. Which of these devices can cause an acceleration in a moving)7 wot31nm6-feh ymhf 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 cfr a,gp9 (,+.py gho)x,rywk24000 newtons. About how much time is needed to increase the rocket ’ speeg ,k) ,fo,rx( cpgyhr9w.p+ay d 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 horg8ro :er4hkxsp g0,m*izontal 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 and the box accelerates to the right, rank the sizes of these three fop,rskhegg:* r o 84m0xrces exerted on the box.

  02.27: The diagram below shows three roller coens otqelx5903s6x) oaster tracks of equal length. Assume that on all tracks the roller coaster carts start from rest ats9n5 ot solex3e6 0q)x 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 shows tha8ewzjx1o;s7;x*(g;p zr 7txv(meqq ree roller coaster tracks of equal length. Assume that oxrvjaot;(zm( xe7;;zwqq8 s * 1p7gxen 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 rollercoaster cartrolls frictionlessly along the curv(;l ba;ow o8gltk6zm:r*n,nu ed track from point A to point C under the influence;6al (,mgo *zlrwnb:t8u;no k of gravity. What would be the direction of the cart's acceleration at point

  02.40: A box with a mass of 50 kg is dragged across the floor by a rope which yg z+k:6 voc 4cc+8dqsmakes an angle of 300 with the horizontal. Which of the following would be closest to the coefficient of kinetic friction betweenv+ 6cc: g8kyds4c q+zo 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 ddh 8 c2u)(uwiinitially 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. Ww8uduhc 2 di()hat is true of the friction acting on the block after a time of 1 second?

  05.10: A homeowner pushes a lawn mower across a5j i4w gjy 8o,5cj l5baj2dsx: horizontal patch of grass with a constant speed by applyingy :2 w,xjj4o5g5 dlbcasj 85ji 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 a crate on a table. Neither is moving. Which of thebr0 k/a r7jl8 3t3shms following statements concerning this situaaktl8b73jh sr s3 /0rmtion is CORRECT?

  06.15: A crate of toys remains at rest b5r*yb.tp29qxx q8)gp br l)x on a sleigh as the sleigh is pulled up a hill with an increasing speed. The crate is not fastened down to the sleigh. W xbpq2.5*rtbrx 8 xq)lp)9bg yhat force is responsible for the crate’s increase in speedup the hill?