99.36: What happens to the inertia of an object when its velocity kb5q d7z(0ek kc9yt.0fkr6ey-w e)s ais doubled?

  02.14: An intrinsic property of matter is one that does not depend ;a btn2:a8zgkon the quantity of matter present. Which of th8zkt; ab2:gn ae following properties is NOT an intrinsic property?

  04.16: A 20 kg boulder rests on the surface of the/00eb* -qhz wraa7 mje Earth. Assume the Earth has mass mwz0b*0ejea7a-hr / q$5.98 \times 10^{24} \; kg$ 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 surme xx.;g t2 ysb/twi-9face of the Earth. What is the magnitude of the gravitational force acting on the ear.e 9ys-ibtg/2 mt;xx wth 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 itsk8vz *ojuya;pw0(opcsj 9b3va /8ho + acceleration decreases(/ywo8b o 9*+;0jvp sav8ja choup k3z?

  00.11: A certain particle undergoes erratic motion. At every)ul99ld 2p8ghc6d:pw plw3 c c point in its motion, the direction of dl9:29cpplwg hp8)ccw l3d6uthe particle’s momentum is ALWAYS

  17.14: A block is suspended in the air at the end of a stem +1)xu,u n9dhaxet27 ighki)e9hp 0ring held by a person. The perso i2 p +i,hnek0eauexxu79th9) )gdmh1n 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 block?

  07.18: In which one of the following situations is the net forces yzb+eeu,/n 2 constantly zero o n,/eesb2z+ yun the object?

  13.28: An object is in free fall clos s3et8 bpmacx4f5(a:*l4rv nne 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 obje43r48 e( vlfa*mx5 n:s bactnpct 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 bq9g;j bk r*ej0+kl i2 *6wwha//cyrtN, and F3 of 70 N, acting on it. Th9 r+bw kb/2j**/a0rjt 6 eywilcg khq;e magnitude of the resultant ofF1 and F2 is

  01.07: A force of 6 Newtons and a fc)g/rsu443r.jagox w;vi c4u)tv br*orce of 10 newtons can be combine to form a resultant with a magw4 ctuovair r.cj*; ggv)4b3r)s x/u4nitude of which of the following

  10.06: Which of the r6pn n-uu+j.anf 0t ny6rvo.5following statements is most closely associated with Newton’s uv6ftr0 p+.n 6oy rn5n-.ajnu Third Law of Motion?

  95.06: The reaction force does not czt j/n-buy/d(ny65o tqt)-xx jn+d a /ancel the action force because:

  14.14: A box rests on the floor of an elevator. The elevator-ra1 3bii*,t,wj tb akmco:7v is accelerating upward. Which one of the following choices best represents the Newton’s Third Law pair force to the gravitational force acting on a :mrk bt,-1t7*,3wvbciaj iothe box by the Earth?

  15.15: A skydiver falls downward through the ajuh4yrre urv 90+11j yir with constant speed. Which one of the followiny1 j0ueuhr9yrv 1j4r+ g choices correctly describes the Newton’s Third Law pair force to the air resistance acting on the skydiver during the fall?

  06.08: A baseball is thrm/29 zvz ::p3i+kdhn .;f9kulpkgcasown by a pitcher with a speed of 35 m/s. The batterswings and hits the ball. The mzk/.n ;k smadc9 :3igl pkzfvup+ 9:2hagnitude of the force that the ball exerts on the bat is always

  11.13: A physics book sits at rest on a table. On top of gx 8v+8mn2fk ythe book is a calculator, also at rest. Which one of the following cgky8x2 + fmvn8hoices is the Newton’s Third Law pair force to the force that the table exerts on the book?

  05.06: The students in a Physics I class were in lab cxk /nsxyhg 04gk r/z f0bm)0k u k*qp3m5/dj:jonducting an experiment related to Newton's Second Law. The collected data were displayed on the graph a dmm/*xs)z/npk /0jr4035bg:h k gkkqfyu j x0t the right. From this graph, what conclusions can the students make?

  99.03: If the net force on an object were double0ie 4 w,x0w ipr//5nvf sz4ywbd while at the same time the mass of the object was halved,tzwwfw xn5, /ypsb0 4viri0 e4/hen the acceleration of the object is

  96.15: A car whose mass is 1500 kg is accelerated uniformly frome0v4hc . ln:dw f3o-ee;c ,gwr g8fuj6 rest to a speed of 20 m/s in 10s. The magnitu-gj,ehrlu.nfc4ee;g0 dwf:3c w v6 o 8de of the net force accelerating the car is:

  99.05: A tractor-trailer truc c 2oc zfj95cda g2qg-alct084 0q(fbtk is traveling down the road. The mass of the trailer is20b acqg50d 8t ffo-qca t(c9glzjc24 4 times 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 fo6e/m ol aargegvx.3 *iub2v4 r52d:au llowing principles best explains why large tractor-trailer trucks generally accelerate much more sl 26loave 5xabu:a r4g3 vr2e ug*i.m/dowly that automobiles?

  99.19: A 50 kilogram skater at rest on a frictionless rink throws a*, rjd0xc r)sa ck7ho. 2 kilogram ball, giving the ball a velocity of 10.0o7d*,rx) jrcs 0ak.h c m/s. Which statement describes the subsequent motion?

  00.13: An object near the surface04w jivgj+h:i tviy98 of the earth with a weight of 100 newtons is aiviwiyj9j8h :v+0g 4tccelerated 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 consupc0*iu7r leg 3r(o,o + d4bfmtant force of 2400 N.ud3*eur o7 (, m+0c lrb4fiogp 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 rnt3;v umry9 m7ough horizontal floor before coming to rest. The frictvm3m ;7n 9utryional 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 8g mggj3 4d0 :kr q5px-*kpuud7.0 m across a rough horizontal floor before coming to reqm0 35dgpg-4 jkg:ruxuk* p d7st. The coefficient of friction is:

  09.21: A 20.0 kg box remains at rest on a horizontal surface while a per zx2t1c-f.rusx, t; ssn-:zrbson pushes dtxz-u 2 ,fcr;:snsz r.1t-sxbirectly 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 sgd(f3na8jgrb3zy(p.t-v v , m/s accelerates uniformly to 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 kinetic friction between the surd tg 83bfnrva.(jyz-v,s( pg3face and the block?

  00.21: A car of mass m slideq:+1-dr1djfct0t ey w w2y2v ks across a patch of ice at a speed v with its brakes lockej vdfy+dk-rt y20211ect qww:d. 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 a patch of ice at a speed v with ito lml.g.(7o (x+r wfmn 6+xmzo;b 5oqgs brakes locked. It then hits dry pavement and skids to a stop in a distanced. The coefficixnxo mfogor wz(qg +6l5 m.m 7;.(lob+ent 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 thet rq yahr4ht2; sx7jiw4:;xw3 car's brakes and skidding to a stop. How far would the car have skidded if it had bea 4 hit3xj;2qtrw7h;ry 4:sw xen traveling twice as fast?

  99.39: The driver of an automobile must carefully control each of thk+fzf 2 nz+cj3e following devices. Which of these devices can cause an accel+ckf+n jz3fz2eration in a moving car?
(1) the break pedal ( 2) the gas pedal ( 3) the steering wheel

  00.25: The net force ond do0xcp/q ef*. cyfr0uhuuo1f1w),0 a rocket with a weight of 15000 newtons is 24000 newtons. About how much time is needed to increase the rocket ’ speed from 12 m/s to 3rxffu,0f1u0eud.c)wo ph 1qd 0cy / o*6 m/s near the surface of the Earth at takeoff?

  07.21: A box slides to the right across a horizontal floor. A person cal )1dcsq,/ux4y m 7ncydled Ted exerts a force T to the right on the box. A person called Mario ex)4n,qdcm xc 1yy/ds 7uerts a force M to the left, 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 three roller coaster tracks of equal length. Assud,d r 7 t+dzmz0je/d,wme that on all tracks the roller coaster carts start fromz/dr7e,dt ,dmz0d +jw 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 z+b-wxls:delk y:j1 lqyu0(-three roller coaster tracks of equal length. Assume t-kl -qd+ z(llx0e1w yyu:bj: shat on all tracks 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 frimrvlj/ v4o/7 rctionlessly along the curved track from point A to point C under the influence of gravity. What would be the direction of thm or4rv//j7lv e cart's acceleration at point

  02.40: A box with a mass of 50 kg is dragged across tctvxie13 o1;e he 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 teo1evx3;1 ciconstant speed of 20 m/s as shown in the diagram?

  04.40: A 6.0 kg block initially at rest is pushed against a waj5p -:8sr qhbhb4eg.3a vc sa.ll 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 tru h 8s j3cpearbhg.4:v5- bqa.se of the friction acting on the block after a time of 1 second?

  05.10: A homeowner pushes a lawn mower across a horizontal s8 )kwyh.oi.(t1 ef:6ee*uvfo pie;u patch of grass with a constant speed by applying a force P. The arrows in the diagram fe6 ( ek.oo;u*ihs)vpf1:8uye wi.te 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 crate 6otyy e(6h eppuu 2caw23)t)fon a table. Neither is moving. Which of the following sou2w(upyh 2e))faye6 6p t3cttatements concerning this situation is CORRECT?

  06.15: A crate of toys remag81a-lrh,-xd ;b.lleg zbt c;)twcs/ins 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. What force is responsible for the crate’s increase ibgtgr w-ct;la- e.ld1x , z8sl)b ;c/hn speedup the hill?