99.36: What happens to the inertia of an object when its velocity is doubi ;jw85of db5b. udtnw5)2qs fled?

  02.14: An intrinsic property of matter is one that does not depend on the qu- stvbce cn7;8antity of matter present. Which of the follc e7b-v n;8tscowing properties is NOT an intrinsic property?

  04.16: A 20 kg boulder rests on the surface of the Earth. Assume thec7.g /jvica x; Earth has ma/c7gxvj ; .caiss $5.98 \times 10^{24} \; kg$ 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 spher pws.; gu9ahhhkmf65/e is in free fall near the surface of the Earth. What is the magnitude of the gravitational force acting on the earth by the sphere? The uhg69ws;.5mkp hha/fEarth mass is $5.98 \times 10^{24} \; kg$ .

  00.09: Is it possible for an object’s velocity to increaseu 9yxyy ax v-fkx b)i10edtw 66i)5rj) while its acceleration de )6)wit 6fvx -jab19ry dyx )xie5yuk0creases?

  00.11: A certain particle undergoes erratic motion. At every/tvhiae7nz; dp5 hi4qn,/+m w point in its motion, the direction of the particle’s momennd//qpwz;h hae75i4m tnv i,+tum is ALWAYS

  17.14: A block is suspended in the air at the end of a string held by a lr t; u*6vycx y0nqvxoajz81k; 720yhperson. 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 string on the blockq2 tacl7yxh *10k 6n;vv xjroy0 u;y8z?

  07.18: In which one of the following situati ic,elt3vi8p6, bixa*ons is the net force constantly zero on bpvi,t, aiel8 xc*6i3 the object?

  13.28: An object is in free fall close to the gro1ahwck r,.ie myow4/1 und. 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 ih,mwrk 1ia. 1e/ c4oyws a and the magnitude of the acceleration from gravity is g.

  98.03: An object in equilibriumaybvl.08op ys;c7 ym) has three forces, F1 of 30 N, F2 of 50 N, and F3 of 70 N, acting on it. The magnitude of the resultant ofF1 yb;.s o8cy0m7a yv)lpand F2 is

  01.07: A force of 6 Newtons and a force of 10 newton wu151mciwoe7aevn4tv8 0g o/s can be combine to form a resultant with a magnitude of which of the v0eo1 v/5t748wn cw meag1iuo following

  10.06: Which of the following statemenb (;qynlhwp+ume6l) g jz/:+hts is most closely associated with Newton’s Third Law zh;u+)lblnp qm wy (:je+hg/6 of Motion?

  95.06: The reaction for ;xhcj3ve 887fuq52z+qqx vj3dfmne1 ce does not cancel the action force because:

  14.14: A box rests on the floor of an elev)bbr :;7tc(a p5hzdgq9wq :bvator. The elevator is accelerating upward. Which one of the followbwb): rbcqaqz p9 v:;7d5ht(ging 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 dc+1 4rqqyhlt7ue p tg39x6r0.xd pnh0ownward through the air with constant speed. Which one of the following choices correctly describes the Newton’s Third Law pair force to the air resisthr y6n9 3+hg70. qxrdecqtl4px p0t1u ance acting on the skydiver during the fall?

  06.08: A baseball is thrown by a pitcher wit0izoi q /;1j-p/enn4yx z et+uh a speed of 35 m/s. The batterswings and hits the ball. The magnitude of the force tha 1q-xi u;ezy+ jno4n/t0ei/zp t the ball exerts on the bat is always

  11.13: A physics book sits at rest on3ci n0 pllci/l :ncjxv4( t98t a table. 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:nlp0j/8iltnc cx4 vi 93 (ctl force that the table exerts on the book?

  05.06: The students in a Physics I k*u5 cb tp ;jre) ;yhbus7gs2c,fr/4p class were in lab conducting an experiment related to Newton's Second Law. The collected data were displayed on the graph at the right. From this graph, whs;p4rp 7bgy r,*u jcueb;/h2kf5)s ct at conclusions can the students make?

  99.03: If the net force on an object were doubled while at the same time th,f:(al m 9sf umxb/ag.e mass of the olf,/9 fgasum(.m :xabbject was halved,then the acceleration of the object is

  96.15: A car whose mass is 1500 kg is accelerated uniformly 7t/cfuzqw (u 1from rest to a speed of 20 m/s in 10s. /qzu1(wc7fut The magnitude of the net force accelerating the car is:

  99.05: A tractor-trailer truck is trag4 ve-n38h)oah yrrz 4veling down the road. The mass of the trailer is 4 times the mass of the tractor. If the tractor acceleratr4g8o r3-h nevhy)4azes forward, the force that the trailer applies on the tractor is

  99.16: Which of the following principles be-o6,lla )os+g a wz6fhst explains why large tractor-trailer trucks generally accelerate much more slowly that automobilhzs 6a6ll)gwa,o-+ ofes?

  99.19: A 50 kilogram skater at rest on a frict7c/ y ju4ygl6hionless rink throws a 2 kilogram ball, giving the ball a velocity of 10.0 m/s.6/jh 7 ycy4ulg Which statement describes the subsequent motion?

  00.13: An object near the surface of the pvfy6:worb5 eds6x(-earth with a weight of 100 newtons is accelerat56dw-yrso (bv6 :fpxeed 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 forcem5 jn+qt2v* ty of 2400 N. What is the speed o25+ *qjn mttyvf the car 8.0 s after beginning?

  98.32: A 3.0-kg block with initial speed 4.0 1 47rhtt9figbm/s slides across a rough horizontal flt1 4tfr7hibg 9oor before coming to rest. 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 velocity 4.0 m/s slides 8.btbt*h 6 llmm,zis2h ((2rr)q0 m across a rough horizon2rb2 li(z,b htm(6mtqh)sl*rtal floor before coming to rest. The coefficient of friction is:

  09.21: A 20.0 kg box remains at rest on a horizontal surfaca ( 3 1-i-n aowmw5 xnxfcz bt24h;pxz9,+hybte while a person pushes directly to the right on the box with a force of 60N. The coefficient of kinetic friction between the boxa19-fyo t; +x5h3mx th4-2,zwn b (znw baxicp 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 uniformlykj(peiks: ku b6n64/ w to rest on a horizontal surface. Ts6 4kp/ bnu i6kk:jw(ehe 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 sluif+9uo vp/ah( si g 91u3tew1)p3fz nides across a patch of ice at a speed v with its brakes locked. u v9g u)ieas31ohpt +9/13uf (zipwnf 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 .
If the car had a mass of 2m, it would have skidded a distance of

  00.22: A car of mass m slides across ):q1nyl je)8atrz 0ix a patch of ice at a speed v with its brakes locked. It then hits dry pavement and skids to a stop in j zt0qai 1r:n)x)8lyea 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 l9r8,8h mbxrhcar makes an 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 traveling th 8b 9,mr8xhrlwice as fast?

  99.39: The driver of an automobile must carefully control eac mp3:qv7-j,yymr2 lwch of the following devices. Which of th:3mq2y-m pjl 7c,wy vrese 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 oz w:+h;:doi+4 j hwtwcf 15000 newtons is 24000 newtons. About how much time is needed to increase thzhw h 4td+jwo:+;wci: e 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 persoka: 5d*x8j yerx6a (qbn 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 lar jx e(8*qk5ayx adb6r: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 shows three roller coastgiyny) likoo+0ov,e) kj *)u,er tracks of equal length. Assume that on all tracks the roli yu)ki0j+og voly ,n,)*k)oe ler 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 shows three rolleul .f6zqyw , 5slbx)k50e,y jhr coaster tracks of equal length. Assume that on all tracks the roller coaster carts start from rest at the same elevationsb0. e6 x5)jf5,w y,lyzhk qul 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 fr5p4lx 0hg. hvgl o3qqj+mwx,1ictionlessly along the curved track from point A to point C under the influence of gravity. What would be the d.qv3x4j50wmo ,g+h lp1 xqglh irection of the cart's acceleration at point

  02.40: A box with a mass ogel pvced3bh7:/ ;lw)f 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 tow cpelvg b7l:ed3 ;)/h 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 20 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 u9d:xt0 dh :sbN force as shown. Thecoefficient of kinetic friction is 0.30 while the coefficient of static friction is 0.50. What is true sddu9h tbx0: :of the friction acting on the block after a time of 1 second?

  05.10: A homeowner pushv6iobmt 5i0*(f 1nbql o6*jj ses a lawn mower across a horizontal patch of grass with 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 among the vari6vsti o0(jl n1b*q b m6if5oj*ous force magnitudes, W, f, N, P is CORRECT?

  06.14: A book leans again3lzhame vsh;sauf 3kpml2+ h/w ;/w2/8l2hsfst a crate on a table. Neither is moving. Which of the following statements concerning this situation is CORREC2h kmehs 2l2w/w/lmlh3 zv8aaffhp+ ss;/3 u;T?

  06.15: A crate of toys remainsi*5iemdr l(a/5wky 8 k at rest on a sleigh as the sleigh is pulled up a hill with an increasing speed. The crate is not fastened down to the sleigh. Whyela( *mkdrk5/ i5i8w at force is responsible for the crate’s increase in speedup the hill?