99.36: What happens to the inertia of an object when its velohnrpzd(* lghfdr: q8 3-ixc )6city is doubled?

  02.14: An intrinsic property of matter is one that does not depend ow s*1vx onb1k.n the quantity of matter present. Which of the following properxn* wbso11k v.ties is NOT an intrinsic property?

  04.16: A 20 kg boulder rests on the surface or(ef-vv 7*- akvb5p mrf the Earth. Assume the Earth has mak-7bv* -ve (frvp5m rass $5.98 \times 10^{24} \; kg$ 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. What is t 4bg)4tgkww f s8*(me j9kq3qzhe magnitude of the gravitational fok 49k*jge)(b q8s4 g qwwt3fmzrce 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 velr;6 wa o66hqqr86hgopocity to increase while its acceleration do6g6o qr;h66 whr8aqpecreases?

  00.11: A certain particle undergoes erratic motion. At every point in its motion v)w,gu-fztqua* lu87, the diqlzu8,)-ag w uv*tf u7rection of the particle’s momentum is ALWAYS

  17.14: A block is suspendedt1emgl k)+y jajyyx;4t*kw/ - in the air at the end of a string held by a person. The pyt1+g kekj);/aty-x*lm4y wjerson 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 situations5ua1c:25 m ejj dm;wfa is the net force constantly zero on the objectda:u5mewaj1j ; 5c2mf ?

  13.28: An object is in free fall close to the ground. A person inter*d0. yobnui ;zvenes and slows the objec;d.zi oy0ub*n t 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 the magnitude of the acceleration from gravity is g.

  98.03: An object in equilibrium has three foo.tgq (6v8t8 x6n xkl2d3aubf5ol p9prces, F1 of 30 N, F2 of 50 N, and F3 of 70 N, acting on it. The magnitude of the resultant ofF1 andq6x v(u 8fp86dg2tn.ao xb ltkp95 o3l F2 is

  01.07: A force of 6 Newtons and a force of 10 newtom:bp.d3polei 4 -y.e c: ot*x:ur wy/lns can be combine to form a resultant with a magnitude of which ofeylwl4uo/p ytp3roc *:.md-x. ::ebi the following

  10.06: Which of the followfbcog a- -nx83ing statements is most closely associated with Newton’s Third3 b g8c-fano-x Law of Motion?

  95.06: The reaction force bn ( r8bvb1eg5does not cancel the action force because:

  14.14: A box rests on the floor of an elevator. The elevator is acceleratinjj9)zc 8+8xi9xckkmu +ex r7ng upward. Which one of the following cje zc)rnkm++8ix9u x j9xk 8c7hoices 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 ovcz4db;m4of-qcg xdb-;m)/:+dx uf6 ww oc+ constant speed. Which one of the following choices correctly describes the Newto4vd:u6wcwxom m+ b oxbcf-o )zfdq4;-cdg+;/ n’s Third Law pair force to the air resistance acting on the skydiver during the fall?

  06.08: A baseball is thrown 22-isqvuys psmuv 4. -by a pitcher with a speed of 35 m/s. The batterswings u2yqi -u4. pms2svsv -and hits the ball. The magnitude of the force that the ball exerts on the bat is always

  11.13: A physics book grj:g. mx :k ,po04(woym)htsh s)v /qsits at rest on a table. On top of the book is a calculator, also at rest. Which one of the rqxs. m s( t,m 0h/ggo)y)jk4howvp::following choices 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 2ncbbf - 0iixte n m8*bf;)mm.class were in lab conducting an experiment related to Newton's Second Law. The collected data were di.m;bmtbnf 0 -ib)*c8e fi2nxm splayed 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 doub 1h*kp4 hpglqlrzdiy3. uzvzo: eo,u.1g 34x+ led while at the same time the mass of the object was halved,then the acceleration uqe l+zz:,upd3 v1pxih h .yrgg4 o41o3.l*kz of the object is

  96.15: A car whose mass is 1500 kg is accelerateceebdj:; p g03d uniformly from rest to a speed of 20 m/s in 1: edbgecp3 j;00s. The magnitude of the net force accelerating the car is:

  99.05: A tractor-trailer truck is traveling down the road. The mass keh 0vp* -lb+d61tzosba7z1wof the trailer is 4w b1+eo*t 1zbsl kv-60z7ha pd 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 fol7:b 720udbyz i og)qnd-ic8wy(p k,ullowing principles best explains why large tractor-trailer trucks generally accelerate much more sl7b,pbu 0k zuwy)iy:id (d cng8 -7lqo2owly that automobiles?

  99.19: A 50 kilogram skater at jzp c-np0m / 5bizobo90ad72trest on a frictionless rink throws a 2 kilogram ball, giving the ball a velocity of 10.0 m/s. Which statement describes the subsequent m 27no0a9d/b co imztz05ppb-jotion?

  00.13: An object near the surface of the ea 8xcf38egcmi *rth with a weight of 100 newtons is acceleratec8fg*ci8m3x ed 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 a27r2 uvy: xifsj+i q+k constant force of 2400 N. What is the speed of the car 8.0 s 2j+xvu k72 yiqs:r+fiafter beginning?

  98.32: A 3.0-kg block with initial speed 4.0 m/s slides across a rough horizonta:h - co2vr:sutn99 biml floor before coming to rest. The frictional force acting on thciv-:2 9tu h b9:somrne block is 3.0 N. How far does the block slide before coming to rest?

  95.38: A block with initial velocitqn;r+ e 1 tumk6.mmpg2o* c(dmy 4.0 m/s slides 8.0 m across a rough horizontal cu 2 1 ndr;mgm.qt*6peo( +mkmfloor before coming to rest. The coefficient of friction is:

  09.21: A 20.0 kg box remains at rest on a horizontal surface while a p /(cf1ebw;dlm kv4l. jerson pushes directly to the right on the box with a force of 60N. The coefficient of kinetic friction betwevml cld;(.4bj1w kf/e en 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 d-07tsdx5 l0f1 cdvt i2eojt;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 fr ti ;0 ddt2c-t05d7ljof1xvesiction between the surface and the block?

  00.21: A car of mass m slides across a patch of ice at a spe4wei f).j ga+ged v with its brakes locked. It then hits dry pavement and skids to a stop in a distanced. The coefficient of kinetic friction between the tires and the g)w. 4 ieaj+gfdry 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 va1k:ahsi++ o 9d/ wmqb7xi 2obrakes locked. It then hits dry pavement and skids to a stop in a distanced. The coefficiw9 1md+a :v+2k /sahibo7oqxient 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 car's brkcamm -;z tf+0akes and skidding to a stop. How t km-+a0f cm;zfar would the car have skidded if it had been traveling twice as fast?

  99.39: The driver of an automobi- 04xpskrt2zy( sscn :le must carefully control each of the following devices. Which of these devices can cause an acceleration in a moving cask2 r4- (tcpnx0 sy:szr?
(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 ne3dlxq7ce j q,n (c,;hzwtons is 24000 newtons. About how much x (3jh7dz c,;ecnqq ,ltime 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 floor. A pers9 sd+7/eb5sr6v:r duo; cwwvdon called Ted exerts a force T to the right on the box. A person called Mario exerts a force M t/5 v 9+b;wor7du d: ss6vwdcero 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 lennfp3cwdc jz f))dbk 2 .ufq1,5gth. Assume that on all tracks the roller coaster cartd .1ufkjcp c 5fbd2z) qw,3n)fs 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 be traveling the fastest at the finish?

  02.28: The diagram below shows three roller coaster tracks of erorlq8h3 5ab :mywny d3y:0 y0qual length. Assume that on all tracks th3 rod0y0hb5 yyrm wy:3a8ln:qe 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 rollercoastejb 5w ap0,vo:ca;u3sp3zh iq*jf -f(mr cartrolls frictionlessly along the curved track from point A to point C under the influence of gravity. What would be the direction of the cart's ac;j pboi-p3u: s3zvqf5a0hjfa,* m w(cceleration at point

  02.40: A box with a mass of 50 kg is dragged across the floor bbpzz pgc ;p/.56gvm+ t fn3uwlk9,fn- dh.b0xy 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 n.f p0kgxm/ hp6,nw+zucv 5;3l9 zgbf-tn bp.dewton 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 aga *1y*4mcyh(q:yqi by+27mp 5vkvnx +f*duau oinst a wall by a 100 N force as shown. Thecoefficient of kinetic friction is 0.30 while the coefficient of staticami hyuk( 2v y*dny+m*c:*oq5 yv 14xqfp+bu7 friction 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 w6udb3d4 4n iemower across a horizontal patch of grass with a constant speed by applying a force P.d4b 4dnw6ei 3u 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 is CORRECT?

  06.14: A book leans against a crate on a table. Neijyuq ug5 u5j5t. 3(,aqlj:myw ii8bk :ther is moving. Which of the following statements concerning this situation is CORRECuj,mtkqq j:uiy(ga. uj55 b :538lwyiT?

  06.15: A crate of toys remains at rest on a sleigh as j -/v1kaho0szr6 zy0ikj9h+vthe 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 kh a6s1+/iohv9zjjz00 vr- yk crate’s increase in speedup the hill?