99.36: What happens to the inertia of an object when its velocity is do9 d+,mn n8bmk2(,hpg j1p fsgiu,n z1fubled?

  02.14: An intrinsic property of cqp uu.x qnkljv6 g8rt,+ sq/;2 ,k.lrmatter is one that does not depend on the quantity of matter present. Which of thel+vt 6,2pkq;jrk n8qq./gursuc.l x, following properties is NOT an intrinsic property?

  04.16: A 20 kg boulder rests on the surface 2co :ni,c7j7bi*j) atv.cht cof the Earth. Assume the Earth has mass ,cc j2ht:c.t7 *j7cnva bi)oi $5.98 \times 10^{24} \; kg$ 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 Earth.dld7sn uao x*6*i8i )r What is the magnitude of the gravitational force acting on the earth r7a *d6uld x)oni *s8iby the sphere? The Earth mass is $5.98 \times 10^{24} \; kg$ .

  00.09: Is it possible fq.mds0 ms6n ftb.,d 2yor an object’s velocity to increase while its acceleration decreases? ft.6,dmn. dms2bsy0q

  00.11: A certain particle undergdqgii,jsh -+xc(w1y0 oes erratic motion. At every point in its motion, the dire1i iy,js + (-hgqwc0dxction of the particle’s momentum is ALWAYS

  17.14: A block is suspended in the air at the end of a string held nok6 k*xlnr:y0n6k - 1zdwmr5by a person. The person pulls on the string uniformly accelerating the block upward for a short time. During this time, which one of the folkmr5wkyr* :6ko1nd 0n6l-xznlowing 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 fo ; vgrm*hex11cllowing situations is the net force constantly zero on the object?ce*hg1r1mx v;

  13.28: An object is in free fall close to the ground/9 y4 4ttqrcjbccmu5)ew cu0 9. 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 ic c99 wrt)q5/ctue40j4cb umyt 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,x6s3kj;c.e/,h zeds r F1 of 30 N, F2 of 50 N, and F3 jz6;xc e.3/ se,ksh drof 70 N, acting on it. The magnitude of the resultant ofF1 and F2 is

  01.07: A force of 6 Newtons and a fo iu4 wp+kl :j6gr*dx9rrce of 10 newtons can be combine to form a resultant with a magni*6x4:ukl+i wd9rpjg r tude of which of the following

  10.06: Which of the following statements is most closely associated with gpy*0 9nblq/t Newton’s Third Law of M/0p tlgb9q n*yotion?

  95.06: The reaction force does not canwmyaoh4;ps fn ch,8 *1t)rq: acel the action force because:

  14.14: A box rests on the floor of an elevator4l mfe tezeybrhm/vm8n)cvz; 7g 5 2);. The elevator is accelerating upward. Which one of the following choices beshz tm45e;ce)lz; mr8nbme )2/fvyg7v t 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 speee3q8hoj )9ssi;6 nrynetg 80muqs8 ;cd. Which one of the following choices correctly describes the Newton’s Third Law pair force to the air n;n 6o i;)q88re8jst y sqe9hgm3c0us resistance acting on the skydiver during the fall?

  06.08: A baseball is thrown by a pitcher with a spknvi 6-r-crz2*qh 1kweed of 35 m/s. The batterswings and hits the ball. The magnitude of the force that the ball exerts on z-1q2*kivrkc6rn -w hthe bat is always

  11.13: A physics book sits at rest on a table. On top of the book is ku1sc 90nah8n 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 exerts on the book? nh1 ks0 nca9u8

  05.06: The students in a Physic/3cynlg(g: w ds 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 studen:dgc n/(lgyw3ts make?

  99.03: If the net force on an obje,bx:bx h8wx 8sct were doubled while at the same time the mass of the object waxs bhw,:xbx88s halved,then the acceleration of the object is

  96.15: A car whose mass is 1500 kg is accelerated uniformly fromc x oi.a5ty2mr1qx9u58-cfe w rest to a speed of 20 m/s in 10s. The magnitude of the net foa x.1i9ortuq 5m-2y5c xe cf8wrce accelerating the car is:

  99.05: A tractor-trailer truck is traveling down the road. The masiox4qa,cvnk5c+ 0p z pa2z; utf 3t jr4d(5e+ss of the trailer is 4 times the mass ofn5j+4t,3pd 5v0qxaekiz fup cz4ao2( t ;src+ the tractor. If the tractor accelerates forward, the force that the trailer applies on the tractor is

  99.16: Which of the following principles b0, 9p gibo3fiuf4qp vg1j6/)ism, tey est explains why large tractor-trailer trucks generallytifeo i)ug4gsqi3jp ,v/m06 9fyp 1 b, accelerate much more slowly that automobiles?

  99.19: A 50 kilogram skater at rest on a frictionlesst)l: bsclsgb4ds** q) rink throws a 2 kilogram ball, giving the ball a*d scs qs4bl*l)tb:) g 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 newtons;e qben,k2mjpk1 q d0s40 pwy) is akeymq2 jw sbn41 ,0pq;0edk)pccelerated 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 b +j-0:m/ftsss5 fest oy a constant force of 2400 N. What is the sp5f/0s+ft jmts sos -:eeed of the car 8.0 s after beginning?

  98.32: A 3.0-kg block wit *loyg5tm uk0h* nj:cy71dv,gh initial speed 4.0 m/s slides across a rough horizontal floor before coming tu gt:o vhdkjl0*y7g5*y1 ,cmno 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 8.0 m across a 0 d obr3whq+e.rough horizontal floor before coming to rest. The coeffiq3.+0o behwdrcient of friction is:

  09.21: A 20.0 kg box remains at rest on a horizontal surface while c7iu 0ej/whsyag 3* y s5ij9:ma person pushes directly to the right on the box with a force of 60N. The coefficient of kinetic friction between the box and se iy0gjcu m:ij7w3*9ha sy /5the 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 initiall-ufnpty yrw 0xre2 c)5,e)a7 ay moving at 8 m/s accelerates uniformly to rest on a horizontal surface. The bly5a r70,frean2ue- t)wxy )cp ock 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 s.wk0 vq opi6z av9z()mlides across a patch of ice at a speed v with its brakes locked. It then hits dry pavement and skids to a stop in a distanced. The coefficient of kinetickvvoz06q. mz9wi pa)( 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 acr-0eiwd60p zn0caaru d1bl5 s81wbg 0 ross a patch of ice at a speed v with its brakes locked. It then hits dry pa1 5buwzrn-ldb6 0waa1g8 c srd00ep 0ivement 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 speed of 2v, it would have skidded a distance of

  04.32: he driver of a car l;7.w19ss*q*dwq d u db pxy(smakes an emergency stop by slamming on the car's brakes and skidd1;s dsx *qbp9d*7l u .wqd(sywing 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 must carefull i(dvx6qwf4tig/cho /)3 ocher w8*d:y control each of the following devices. Which of these devices can c:o4 8fh3t /qx/ih )r ciwwod*cg(6vedause 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 i0qn/qzh7uae) ttdu d 72/2kinewtons is 24000 newtons. About how much time is needed to increase the rocket ’ speed from 12 m/s to 36 m/s near the surface of ti/2 ah72 /0ziekdu)7qt nq duthe Earth at takeoff?

  07.21: A box slides to the right a:t9nx2 6/5yhh xp7bv6frehx-h rnh,z cross 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 left, which is half as large a2 fxzh:t5r y/ 6h-xxe9rnh,7pbvn 6 hhs 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 hs gwm7-;8i ,ch0yaveyb(7etthree roller coaster tracks of equal length. Assume that on all tracks the roller coaster carts start from rest at the same elevation and moves frictionlessly over the tracks to tm(ew,t7vbg y 8ac;hihe 0s7y-he 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 o yk(k );o2 .6hez-nnfsma loo0f equal length. Assume that on all tracksa;6 hl-on)s. o2fmkn k o0zy(e 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 frictere+db3amlb/5az r; 9 ionlessly along the curved track from point A to point C under the inf re/ald9bz;bm 53e a+rluence of gravity. What would be the direction of the cart's acceleration at point

  02.40: A box with a mass of 50 - pfzo)rsc2e; tlj4 k(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 thfp(zst 24ok; el-)jrce 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 37 m8zr prgu0aagainst a wall by a 100 N force as shown. Thecoefficient of kinetic friction is 0.30 while the coefficient of static frur7ma8r 3zgp 0iction 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 lawn mower across a horizontk22r+yd) su ok6ql n1eal 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.+) ld qk26koy2enr1 su 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 tn gpl5jbmo04 -he following statements 5ponbm04-ljg concerning this situation is CORRECT?

  06.15: A crate of toys remains at rest on a sleigh as the sleigh is pullenf c.73 (5 av/h oxgrm4cieaq. n8oif/z:ba9 ed up a hill with an increasing speed. The crate is not fastened dorvz f45o/iqcnai(a g .mchx:f/.38n9eo 7 beawn to the sleigh. What force is responsible for the crate’s increase in speedup the hill?