99.36: What happens to the inertia of an object when l8.yc)mg m97xvi t y6 ujz99a9uov xd6s+z;zqits velocity is doubled?

  02.14: An intrinsic property6+ z(j dd5re2 3sflm8pinf:wt14/unyfru p6d of matter is one that does not depend on the quantity/p1 56emp8j2 s64 yf(nd+n:3dzr wilrudtfuf of matter present. Which of the following properties is NOT an intrinsic property?

  04.16: A 20 kg bould)m8bygo6b qouo2zo/ c 4 grwz4ag-*h6er rests on the surface of the Earth. Assume the Earth has massy 4o*za2grgu /zo8) gc-boq m646hb wo $5.98 \times 10^{24} \; kg$ 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 Ear*wx)chf0 ( y3mhmz5kv:.sryrth. What is the magnitude of the gravitational force acting on the earth by the spherex.vky:y(hsw* cmh 50rm3rf)z? The Earth mass is $5.98 \times 10^{24} \; kg$ .

  00.09: Is it possible for an wd(j rx l;y-ol9 d(s(zobject’s velocity to increase while its accelerationz l rsyo(j((xw- ld9d; decreases?

  00.11: A certain particle undergoes erratic motion. At every pdoy) yaes(h. /i8*gkn oint in its motion, thy8*is (. ahoek )gnyd/e direction of the particle’s momentum is ALWAYS

  17.14: A block is suspended in the air at the end o x vte8+y9ruw/8dg qp;f a string held by a person. The person pulls ot9r d;g8qvyewu+8xp /n 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 block?

  07.18: In which one of the following situationld9d0 ha*enru6wwmrs 577r8 vs is the net force constantly zero on the objectsd a85ww70rdn ur*6le9v 7hmr?

  13.28: An object is 6g f70 u hej)m/kt:pzuin 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 acceleration is a and the7kt/u ) jpzm6u:feg 0h magnitude of the acceleration from gravity is g.

  98.03: An object in equilibrium has three forces, F1 of 30 N, F2 of5ggdr*;lyi ,s0mx;h8q rt2j 4gg ci x2 50 N, and F3 of 70 N, acting on it. Th *5tscx gmqr0 ;hx;d,giyr 2 g48ijgl2e magnitude of the resultant ofF1 and F2 is

  01.07: A force of 6 Newj-b*07 loe jmbtons and a force of 10 newtons can be combine to form a resultanjmejlob*b0 7 -t with a magnitude of which of the following

  10.06: Which of the following statements i7,d4u9 sw f2 vvaldcc7s most closely associated with Newton’s Third Lawc79 wduv7alsv2 4c, fd of Motion?

  95.06: The reaction force does not cancel the acti7 x kdx,1es;ilon force because:

  14.14: A box rests on the floor of an elevator. The elevator is accptyu*)e nun6 l7yvf h6iu7s 0b0a2dx7elerating upward. 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 Earthu267 uu heldnt0s7yx* y) 70apfnb6iv ?

  15.15: A skydiver falx.-s, .bhn4ewacm 9xqls 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 resiwa ce-bxsqhx4 ..,9nmstance acting on the skydiver during the fall?

  06.08: A baseball is thrown by a pitcher with a speed of 35 m/s. hw*dcm cy3fht0-h5 v: The batterswings and hits the ball. The magnitude of the force that the ball exerts on the-cf hh:y 5vm d30cth*w bat is always

  11.13: A physics book sits at rest o2/- 3gexs (rfnla v0hun 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 fvgs/x(3f h rne al-02uorce that the table exerts on the book?

  05.06: The students in a Physics.n1ne ziv rcra8 z+f/:7ob w.q I 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, what conclusions can the stud.1:ncar8 f+/bq znrwv ze.io7 ents make?

  99.03: If the net force on an object were doubled while at the sam1.x(nmjowo/ax*n y 3he time the mass of the object wa/3wmny(n hx jo.1x*ao s halved,then the acceleration of the object is

  96.15: A car whose mass is 1500 kg is accelerated uniformly from rest mu7 em(m) o6tyto a speed of 20 m/s in 1u)m(7 tmymeo60s. The magnitude of the net force accelerating the car is:

  99.05: A tractor-trailer tne1d2i8gcn( l(e teh +lci9x2+- wuclruck is traveling down the road. The mass of the trailer is 4 times the mass of the tractor. Ifge89ulc1t+ie ei+ll-cxd((h2 w 2 nnc the tractor accelerates forward, the force that the trailer applies on the tractor is

  99.16: Which of the following prqu. yd zr7d-p8inciples best explains why large tractor-trailer trucks generally acce ru7yzd-pq.8 dlerate much more slowly that automobiles?

  99.19: A 50 kilogram skater at rest on a frictionless rink throws/vpac51agayr q ka;+ * a 2 kilogram ball, giving the ball a velocity of 10.0 m/s+/ak;1ap5 cgaqv*yr a. Which statement describes the subsequent motion?

  00.13: An object near the surface ofa 7btic f(thz+t4bfxyo4ni55 x21*sp the earth with a weight of 100 newtons is accet bfioy7h 4 5xz nact2+fist(1 *54xpblerated at $4\;m/s^{2}$ . What is the net force on the object?

  98.25: A car whose mass i(it z wcbly;q7 vg5y2-s 1200 kg is accelerated from rest by a constant force of 2400 vwl72z t-yg ;byqci (5N. 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 sli im3w4 h6da;dned3mgnmp; - b6des across a rough horizontal floor before comiagmh - 6de;mn 43dpn6 3dbmw;ing 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 initim 4zof+b7dqjzv/a .0 ial velocity 4.0 m/s slides 8.0 m across a rough horizontal floor before coming to rest. The coefficient of fricd .qzij7b0omaf4+v /ztion is:

  09.21: A 20.0 kg box remains at rest on a horizcz:rwy/5; b:l ypkl/m yl)7u q+x/oszj y(i+ xontal surface while a person pushes directly to the right on the box with a force of 60N. The coefficient of kinetic friction between the box and the y/7:yc +ou jlzz:sqb m5w/px x/yll ()r;yik+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 twdb6bj 93 +9*unvdk w mdld;n0o rest on a horizontal surface. The block travels a distance of 12.0 m during the slide. Which one of the following choices best represents the coefficient of kid3v9 jl km0u b*+w6ndnwddb; 9netic friction between the surface and the block?

  00.21: A car of mass m slides across a patch r( /2;uhlj:slnaa*az edjm :7 of ice at a speed v with its brakes locked. It then hits dry pavement and skids to a stop in a distanced. The djal(::n7; z*2sja/u rmleah 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 icdv 4h/a ph:s:gengw0t5. fo*oe at a speed v with its brakes locked. It then hits dry pavement and skids to a stop in a distanced. The coefficienf:ohh*: te/w.p ns5 v0a4dgog t 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 carp idor63-i cc0's brakes and skidding to a stop. Hcp6 i rc03od-iow far would the car have skidded if it had been traveling twice as fast?

  99.39: The driver of an automoh:4m tdgg.0csdpd5f6f39 uq i bile must carefully control each of the following devgf5dddhits:90 3qcf .6mpu 4gices. Which of 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 5z3k)t;rqg5)j gv ewn with a weight of 15000 newtons is 24000 newtons. About how much time is needed to increase the rocket ’ speed from ;rqzjge)g v)n 53k 5tw12 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 l1ljy2o 1 /jcpc)kyb :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 bo1 y)ljl1j2oyk c cpb/:x accelerates to the right, rank the sizes of these three forces exerted on the box.

  02.27: The diagram below shows tpobf6 6zvrhimkl ,oy v6m *+nu;+1cf * 9dxlw:hree roller coaster tracks of equal length. Assume that on all tracks the roller coaster carts start from res1yo+ cx o6*,mf96mnzfw;k bhld+up *6ivrv:l t 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,vl:mig+ ify nh 0-j8u three roller coaster tracks of equal length. Assume that on all tracks the roller coaster carts start from-,jiv:hngi 8m+ f0ylu 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 curved tracki t0j h4p*vyj3 from point A to point C under the influence of * 4yijvh03jpt gravity. What would be the direction of the cart's acceleration at point

  02.40: A box with a mass oht/ vyp-wuk ,z8b dv/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 the w /v k,3pv-b/dt8u hyzcoefficient 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-)db m.. )nb0ge hvjly against a wall by a 100 N force as shown. Thecoefficient of kinetic friction is 0.30 while the coefficient of static fric0 b).vgd-e)hnjm. bl ytion 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 lawnlxo.i p e4)t;y mower across a horizontal patch of grass with a constant speed by applying a force P. The arrows in the xy.pl i)to4e; 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 94w/rldn 6wyrac3yuhh/qk+ -crate on a table. Neither is moving. Which of the foll6l93 -y whq4h/ywukd ra+r/n cowing statements concerning this situation is CORRECT?

  06.15: A crate of toys remains at rest on a sleigh as the sleigh is pulled upl e .5gb4/fm3cp +kytyorf2 )u a hill with an increasing speed. The crate is not fastened y/fb 5tm4 fc lkg+.upoy) er23down to the sleigh. What force is responsible for the crate’s increase in speedup the hill?