99.36: What happens to the inertiwzm-ttd0n mp4 h,t-vqhgu6:, a of an object when its velocity is doubled?

  02.14: An intrinsic qdls5or p/9oc9 +fr ,nproperty of matter is one that does not depend on the quantity of matter present. Which of the following properties is NOT an intrinsic property odc5q/ r,f9l9+np sro?

  04.16: A 20 kg boulder rests on the surface of thez brk2i7/y)+ i2c . aixmyvhe1 Earth. Assume the Earth has mas)x+y veicb22 /h7ki zmri a.1ys $5.98 \times 10^{24} \; kg$ 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 faxv-mvh90m.igd qpz 5w9 1m -hbll near the surface of the Earth. What is the magnitude of the gravmpqdhv5-9 h -0wb.m1i9zmgx vitational 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 increa uz.2j)hmod9coy9 ds8 se while its acceleration duo) yh9mo 8jds92dzc.ecreases?

  00.11: A certain particle undergoes erratic mot3m-uxkid.6a.0+tx x pc.pijc ion. At every point in its motion, the direction of the particle’s momentum is A.c0 . xpi dm6c.-iju atxpxk3+LWAYS

  17.14: A block is suspended in the air at the end of a strin8ul:m.fa9jd.q -l + h zv82mvncw- abtms.d v;g held by a person. The person pulls on the string uniformly accelerating the block upward for a short timuj:m 2vdbn .fl8vm zs-8qd.c;t+ avmhwal-9. e. 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 ne7*lo7eiva r4 nt force constantly zero on the obo r7al* ivn4e7ject?

  13.28: An object is in free fall close tftjp3 s.y5+n(d sxfk g cuv, 63iwz/.eo 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 ix v3 e (tkwfdjc,issn.f/6g+ .3zpy5us a and the magnitude of the acceleration from gravity is g.

  98.03: An object in equilibyx+ wderl(-5vsld 96nrium has three forces, F1 of 30 N, F2 of 50 N, and F3 of 70 N, acting on it. The ml rl y6-v x5we(dnds+9agnitude of the resultant ofF1 and F2 is

  01.07: A force of 6 Newtons and a force of 10 newtons can be combine t rzxkxg6/f;/y w u14gsrsc:.bo form a resultant with a magnitude os4xy /u1 srwg;b6crx/ : gkzf.f which of the following

  10.06: Which of the following statements is most closely associated with Newtonqdm wd lg2o.9;’s Thir9;d .2lwgdqmo d Law of Motion?

  95.06: The reaction force does not6ee47e 8 zt+hgnzzsg11kl oap )yjn09 cancel the action force because:

  14.14: A box rests on the floor of an elevator. The el6wqnv3alx1t-/xh s xbzfvm8c,.q 39q evator is accelerating upwarq c3f/h zwba x. 1l9v,m-63qvq8txn xsd. 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 spj j-a27a5sa vmyif*x /eed. Which one of the following choices correctly describes the Newton’s Third Law paija *j- /ayf52smvi7ax r 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 -1ikn :f rd)igbatterswings and hits the ball. The magnitude of the force that the ball exerts on th)gr-i1f d:inke bat is always

  11.13: A physics book sits at rest on a table. Onpv 7pt3 8r cpplcg3em 5+-w/gl 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 ec538w-3p m+7pllg gvrc /ptptable exerts on the book?

  05.06: The students in a Physics I class were in lab c1- c tozsx/7qj60zfiwonducting an experiment related to Newton's Second Law. The collected data were displayed on the graph at the righ- 7i qczx/0ojt1fw z6st. From this graph, what conclusions can the students make?

  99.03: If the net force on an object were doubled while at the samaf ftbc x o7bq 7t4j66r6vm6)xe time the mass of the object was halved,then the acc) xmj f77 t6v64bf6octabrqx6eleration of the object is

  96.15: A car whose mass is 1500 kg is accelerated l8m)xqr4jj jky- zgoi08sm-+ uniformly from rest to a speed of 20 m/s in 10s. The magnitude of the net force gmy880 -j qk lmjrzsji)+ x4o-accelerating the car is:

  99.05: A tractor-trailer truck is traveling down the . o5k7 bdko-afroad. The mass of the trailer is 4 timek7-fk o d.5obas the mass 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 why large *r67vsp 6m7ba qx*vd hv*2sfs tractor-trailer trucks generally accelerate much more slowly that a*s7 6asv2vdh6bmp* qx7rvs *futomobiles?

  99.19: A 50 kilogram skater at rest on a frictionless rink throws a 2 kilogtxlw 2pz/6*c+ 9vv3xnodd lf:,ds *egram ball, giving the ban*vd 6g oz/ lv:cx+s f,dpx9te3lw2d*ll 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 wein(/b,upyj 2m. hv1raoght of 100 newtons is accelermb(ph .u ,/yno1jra2v ated 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 bgd o+.ha5a mt. /ceons9pnc 3)y a constant force of.3e ct.)/o5do pn+scmga 9n ha 2400 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 m34r,.w atvp arough horizontal floor before coming to rest. The frictional force acting onrt 3aaw,4mvp . the block is 3.0 N. How far does the block slide before coming to rest?

  95.38: A block with initial vzvjst 4 73 k(j.xk4 cbaofevp(xa97z*elocity 4.0 m/s slides 8.0 m across a rough horizontal floor before coming to rest. The coefficient of friction isxbtzv4a 7j34e( f.k(v xzaosk p97j *c:

  09.21: A 20.0 kg box remains at rest on a :cz /q beu;uo+znj56chorizontal surface while a person pusheeu5/c zquj6:;ob n+z cs directly to the right on the box with a force 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 uniffi)i9d;i+ / kinqflo) ormly to rest on a horizontal surface. The blocklnii+kf ) /fiqi9; od) 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 slides across a patch of ice at a speed vk+fdf:bvrzyx7w ,a06 with its brakes locked. It then hits dry pavement and skids to a stop in a distanced. The coefficient of kinetic frictwb76vrd z:y ,ffax+k 0ion 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 wmc-k:y p( mt q.ll6r:tith its brakes locked. It then hits dry pavement and skids to a stop i-t:.pcmlkrl:m t y6 q(n a 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 car makes an emx9b,l v*q)bnm)a7kn ws mcd44a pl3o9 ergency stop by slamming on the car's brake9b7bpxow,)lm a* vacn l)434nd 9mqkss and skidding to a stop. How far would the car have skidded if it had been traveling twice as fast?

  99.39: The driver of an automobile mus)0;be*ofd we 9bz 8tvzt carefully control each of the following devices. W*8ebz vf;owb zd)et09hich 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 with a weight of 15000 newtons is 24000 newtw3s tad -,w*48mzrq2n4rk o2huw x;tnons. About how mm44*r-2qs d ; uk rnwzwwtx o,h823atnuch time is needed to increase the 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 be 7 :k euq txn66pp4sc.52dspfloor. 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 accelerax pkue5 67d.cq2 b:s6 penst4ptes to the right, rank the sizes of these three forces exerted on the box.

  02.27: The diagram below shows three roller coaster tracks of equal length. Aszaz:hmc+/ k 5t sv3576kxfe efsume that on all tracks the roller coaster carts start from rk+fe/h7at z 6v5:z f5xsce3 kmest 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 roller coaster tracks of equal lebcb ++8+( ac it 7gz95myhlghingth. Assume that on all tracks the roller coaster carts start from rest at the same el 7lg 9hz+h5iba8y+cmbti+(cgevation 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 alongv9 big ravgaf8i k0 ycjd 2vmu*68032x the curved track from point A to point C under the influe gk 90c6y*vxaf8i 238r2bim uavgd0vjnce 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 msj johi6,q rrj5p xluuyj:91.:-y5eq x oqi3)akes an angle of 300 with the horizon i,jysiuo r u3p-:qe1rqxy)ol5 : jqjh5.96xjtal. 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 speed of 20 m/s as shown in the diagram?

  04.40: A 6.0 kg block initially at rest is pushogd5ktvqgh u vw48m250y8 4gjed 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 aj84h5 ggd m o8vvyu25g t0k4qwcting on the block after a time of 1 second?

  05.10: A homeowner pushes a lawn mower across a horizontal patch of grass with a 6i.jcr38dec b constant speed by applying a force P. The arrows in the diagram correctly indicate the directions but not n8cei 3 c6brdj.ecessarily 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. Neitherq6c2odob j0txp)x 6-fij1sf 4 is moving. Which of the following statements concerning this situationxt 2f6j 6 b4)1jxqo0dcps ofi- is CORRECT?

  06.15: A crate of toys remains at hr,jh*vxf;rn -v7 o,f 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. What force is responsible for thnf oj,f 7vx-; rvh,r*he crate’s increase in speedup the hill?