99.36: What happens to the inertia of an o-de,/mirc kt1 bject when its velocity is doubled?

  02.14: An intrinsic property of matter is one that does not depend ( gh25 j2qlbfu;n)dqlon the quantity of matter present. Whihn bflldj2;qu (5gq2 )ch of the following properties is NOT an intrinsic property?

  04.16: A 20 kg boulder rests on the surface of the Ear 1tw4k(hkp9yn,emuuc;k pz*+ th. Assume the Earth has mk n*1w zkm ,u+kc9pyp4e; thu(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 frzy;1gtrx;,qlfdvav*w w,9n/ ee fall near the surface of the Earth. What is the magnitude of the gravitationgr,t;1;v z9qlw*w a/nx,yvfd al 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 accelev5pk 8bp(xi w1cw0+4m2ah 7ecob/yh uration decreases+up k1 bie0h/a bpcwy57w8oxc2(h v4m?

  00.11: A certain particle undergoes erratic motion. At everyabjn m2f )5k7k point in its motion, the direction of the particle’s momentum is ALWknjma 72f 5bk)AYS

  17.14: A block is suspended in the air at the end of a string held by a perfp:*a(hz6 y psson. The person pullsp*af6yz(sh: p 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 block?

  07.18: In which one of the following situations is the net fruo);2s7rd xe orce constantly zero on the oburr7 e o2s;)dxject?

  13.28: An object is in freeb(9gl-uu p3d 7 3-srpi:gq tjy fall close to the ground. A person intervenes and slows the object uniformly to rest. gg 3ui-pjqr(3: d-lsy7b9utpWhich 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 equilibrium has three forces, F1 of 30 N, F2 of 50 Nzif*xo78 diqg7a+y9 r 8e-pdc , and F3 ofax7ec fz8i7gpridy*q+9 8do- 70 N, acting on it. The magnitude of the resultant ofF1 and F2 is

  01.07: A force of 6 Newtons and a force of 10a*db/vp/1v5 u0r h4 qssp6jq knw2pi. newtons can be combine to form a resultant with a magnitude of which d1s.6ui/q*pn rph05svwvqk apb/ 24j of the following

  10.06: Which of the following statemjj v9tm ,sqrphz, 05k.ents is most closely associated with Newton’stsqz,k,r j0p9h 5mv j. Third Law of Motion?

  95.06: The reaction force does not cancel the action force8yuxo53ngt8e jtx5w2on t24 w because:

  14.14: A box rests on the floor of an elevator. The elevaton9 rs h)v4x4.ot7*hex wbgdi0r is accelerating upward. Which one of the following choices best represents the Newton’s Third Law pair force to the gravitational forc4 *xw9o)0ti4 vdgb7 erhxnh. se acting on the box by the Earth?

  15.15: A skydiver falls downward through the air with constant sc9 q5,z o2(9lttjlftbpeed. Which one of the following choices correctly describes the Newton’s Third Law pair force to the air resistance acting on the skydivq l9 ,tzjf5 (ttc2lo9ber during the fall?

  06.08: A baseball is thrown by a 2lji4 zc(nvun-1w d (apitcher with a speed of 35 m/s. The batterswings and hits the ball. The magnitude of the force that n vi-2( 1wluz(cdan4j the ball exerts on the bat is always

  11.13: A physics book sits at rest on a table. On top of the boo cc1 e-t mcyub7-yhh)0k 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 c17- bm 0ctu h)heyyc-exerts on the book?

  05.06: The students in a Physics I class were in lab conducs+n:ria; b*l g l(z7p1wh+kwrxw 2x6yting an experiment related to Newton's Second Law. The collected data were displayx7k y+*2bha (srgilpw; +w1wn r x6:zled 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 w-l1.ni a-j epk/pdsntxlse )w)5,bg1hile at the same time the mass of the object was halvedd ptx, -e)b/.ak)li s1lsjgpenn1- w 5,then the acceleration of the object is

  96.15: A car whose mass is 1500 k/7cz+ xk*wyzuu5hu; xg is accelerated uniformly from rest to a speed of 20 m/s in 10s. The magnitud+*u uhku;z /x7yc5x wze of the net force accelerating the car is:

  99.05: A tractor-trailer ./z*fi y 2wq ksaj4h2rtruck is traveling down the road. The mass of the trailer is 4 times the mas qjsw/.k*h2y 2irza4fs of the tractor. If the tractor accelerates forward, the force that the trailer applies on the tractor is

  99.16: Which of the following principles best explains )hcxqo68fv* l why large tractor-trailer truckcx)ho6f*v q8 ls generally accelerate much more slowly that automobiles?

  99.19: A 50 kilogram skater at rest on a frictionless rink throws a 2 b*cq)f3drqrp 9ukbm2 5r.sayt; o 8 c2kilogram ball, giving the ball a velocity of 10.0 m/s. Which statement describes the subsequent moti23r) pf oqqd;y98smr.52b cuta b*ckron?

  00.13: An object near the surface of the earth with a weight of 100 fkco xz+m0d87qe-q lf i z8-t1 *8btxgh.bc. mnewtons is acceleratedch7k mf .qzqbefixxl tom+g8b tz.*80 -8dc1- at $4\;m/s^{2}$ . What is the net force on the object?

  98.25: A car whose marw o7enyzl ;9(ss is 1200 kg is accelerated from rest by a constant force of 2400 N. What is the speed of the car 8.0 s after begiw o(zl 7;n9eyrnning?

  98.32: A 3.0-kg block with initial speed 4.0 m/s slides across a rough hori st4fqj3 6y*jktw8lwr,*j ,lwzontal floor before coming to rest. The frictional force acting on the block is 3.0 N. How far does the w q fwt jrtl*sjkjy8 ,*4w6,l3block slide before coming to rest?

  95.38: A block with initial velocity 4.0 m/s slides 8.0 m across a rou-ka .cwaj jy5.gh horizontal floor before coming to rest. The coefficient of friction ic5-waj aj.. yks:

  09.21: A 20.0 kg boxk1.j- . qxdwkwy. je;y remains at rest on a horizontal surface while a person pushes directly to the right on the box with a force of 60N. The coefficient of kinetw-xkdj1;. k.ey. yjqwic 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 rest on 3.xtjhprs3r - 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 h.r3xtsp r-3j kinetic friction between the surface and the block?

  00.21: A car of mass m slides across a pan0 a5mcyu)a1j7ivi v3tch of ice at a speed v with its brakes locked. It then hits dry pavement and skids to a stop in a vm0 5a)v cy 173iajuindistanced. 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 a patch of ice at a speed v with its w,fqw7gvrsjl +5va84 brakes locked. It then hits dry pavement and skids to a stop in a distanced. The coefficient of kinetic vg8 fwsr4qvw+j,a75 lfriction 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 by1ga(9p wt ps;r slamming on the car's brakes and skidding to a stop. How far would the car have p9gp;ra st 1w(skidded if it had been traveling twice as fast?

  99.39: The driver of an automobile must carefully control each of w2im*zt- m +vhthe following devices. Which of these devices can cause an w+ th 2mzi-*vmacceleration in a moving car?
(1) the break pedal ( 2) the gas pedal ( 3) the steering wheel

  00.25: The net force on a rocket w0r-xergaxe4.4pr 5v.+n gbjs4 + vozzith a weight of 15000 newtons is 24000 newtons. About how much time is needed to increase the rocket ’ speed fg.+ngv z v+4 -404.xrxjpozr5reabesrom 12 m/s to 36 m/s near the surface of the Earth at takeoff?

  07.21: A box slides to tcb8/sk9pq6c p lj-p 0whe right 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 lep6cs80 -jk qlp9/cbwp ft, 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 thrci)q/7obux n1r 2ys6cg l)jf3ee roller coaster tracks of equal length. Assume that on all tracks the roller coaster carts start from rest at the same elevation 3sc)r/ij2 ) uyfl1xbqoc g67n 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 threij*..bcs sc k+e roller coaster tracks of equal length. Assume that on all tracks the roller coaster carts start from rest at the same elevation and moves j.c*ibs .c ks+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 th ta7pxdv p:lntl(k/ 86e curved track from point A to point C under the influence of gravity. What would 8 t7dnxt a(6pl v/pkl:be the direction of the cart's acceleration at point

  02.40: A box with a mass twof/y-l6rwg +9k-bt/p rph7 of 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 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 p +tp 9-k6h -ywtgbrr w7lfo//speed of 20 m/s as shown in the diagram?

  04.40: A 6.0 kg block initially at rest is pushed aga5he;8 s-t-. p7g kqsbvhed:t1,gso26islai linst 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 frichabpk7eq iet-gsgs-i2s : 561.hsdt8l; ,l votion acting on the block after a time of 1 second?

  05.10: A homeowner pushes a lawv-w;70ymm o3ri9tzxen 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 various force magnitudes, W, f, N, P 0wv 9zet37mm;oi rx-yis CORRECT?

  06.14: A book leans against a crate on a table. Neither is moving. Wntu g/w4q+,pcwqr5ij y t 3c:6hich of the following statemy 53 tgc wqniw/tjq6curp+:,4ents concerning this situation is CORRECT?

  06.15: A crate of toys remains at rest on a sleigh as the sleigh is pulled up a: dxi: fboz.a7 hill with an increasing speed. The crate is not fasted :xoa7fb:.i zned down to the sleigh. What force is responsible for the crate’s increase in speedup the hill?