99.36: What happens to th. j2kxjwf)ot-d* / vyh;9clt ne inertia of an object when its velocity is doubled?

  02.14: An intrinsic property of matter istb -tj 72,+vtvr:voh 0td2tdg bb*;cx one that does not depend on the quantity of m vj:t,c-bttrd 70ht2bo ; *bgvvxt +2datter present. Which of the following properties is NOT an intrinsic property?

  04.16: A 20 kg boulder rests on the surface of the Earth. Assume the o g;v:v2:sd7 jai cvz;.:symv foor6,Earth has maso o:sdvoy.m ;i :aj;27, czv: svf6rvgs $5.98 \times 10^{24} \; kg$ 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 iiiz , bzsff2+;s the 2 siz;b, f+fizmagnitude of the gravitational force acting on the earth by the sphere? The Earth mass is $5.98 \times 10^{24} \; kg$ .

  00.09: Is it possible forgb 4s 3x*stz8 :9vhfor an object’s velocity to increase while its acceleration decreases?4t 38hs9z gf*r: bsoxv

  00.11: A certain particle undergoes erratic motion. At every point in its motfl 72ahd0tl-qion, the direction of the particle’s momentum ilfl adq2 7ht0-s ALWAYS

  17.14: A block is suspended in the air a1qx mpi6 biw6wo4k/ ;0r4 8qqs,as fpat the end of a string held by a person. The person 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 wq/mi 0 o aq 6w41pr qi8kxas,46b;fpsforce to the force of the string on the block?

  07.18: In which one of the following situatg qtl.0ycbgka39h z fh4-*6yiions is the net force constantly zero akh4 h-lqg yz9t6c. gfiby3 *0on the object?

  13.28: An object is in free fall close to the ground. A person int(t/*ert dpr6 wervenes 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 s6wp(er r/*td ttopped 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 equil12qahj x ib5 mg bry+cj4.u.y2ibrium has three forces, F1 of 30 N, F2 of 50 N, and F3 of 70 N, acting on it. The magnitude of theia.4hj2 ym+ jugbqx5c.12rby resultant ofF1 and F2 is

  01.07: A force of 6 Newtons and a force of 10 newtm:hdkq.b l9 w8ons can be combine to form a reld:w .9bk mqh8sultant with a magnitude of which of the following

  10.06: Which of the following statements is most closelyo+ar0o2q s0vn associated with Newton’s Third Law of M+0n s vro2q0aootion?

  95.06: The reaction force does not cancel the action force beca qj b(lc*,sz.tuse:

  14.14: A box rests on the floor of an elevator. The elevates9ykj up5 ;2mkt*8+new jp7;ro g8gsor is accelerating upward. Which one of the following choices bestgkuope; p +g8*5nw2j r;9j7ey8st ksm 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 speed. Which7z/ z1vdoy-bw one of the following choices correctly describes the Newton’s Third Law pair force to the air resisz7-vy/d1ow bztance acting on the skydiver during the fall?

  06.08: A baseball is thrown by a p d7p lrh8-re3yn m*jl(.hw(xqitcher with a speed of 35 m/s. The batterswings and hits the h3 . d*nx(p qw7ylrhemrl(j8- ball. The magnitude 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 the book is a calculahwtcgn* d by*q:2z/+au, j0 zgtor, also at rest. Which one of the following choices is the Newton’s Third Law pair force to the force that the table exh/tdwz,j b *:n0*+zug2gy acqerts on the book?

  05.06: The students in a Physics I class were in lab conducting an experimu +eo mj( .ak+xepg48vent related to Newton's Second Law. The collected data were displayedu. va(ej8ox4 p+ekg m+ on the graph at the right. From this graph, what conclusions can the students make?

  99.03: If the net force on an object werehulwc*1 n g jt,-fhd-6-qzll3 doubled while at the same time the mass of the object was halved,then the acceleration3j*-uz-w-, q ldt1g hlnclh6 f of the object is

  96.15: A car whose mass is 1500 kg is acceleratb5 8+sq+cx2-jrls1l/dijszxed uniformly from rest to a speed of 20 m/s in 10s. The magnitude of the net force accel+-x j8sc/2 zibss5j1+lrxd l qerating the car is:

  99.05: A tractor-trailer truck is traveling down the road. The mass jrbm+4wq0 za8 of the trailer is 4 times the mass of thmzj r4aq+wb08e 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 tractor-tra:-k t pem4ogyzg ,(--vpfw da;iler trucks generally accelerate much more slowly that automobdegpk(a4pwo -my:; z-,f-gv tiles?

  99.19: A 50 kilogram 9j;/b2 z 5vo5dotbtyrskater at rest on a frictionless rink throws a 2 kilogram ball, giving the ball ayt b5djz; tor29bo5/ v 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 w6 4 xhv-e oh23ceu4fitif(g:newtons is acceler2ifh- u:w3(4te cgoxh i f64evated at $4\;m/s^{2}$ . What is the net force on the object?

  98.25: A car whose mass is 1200 kg ik su 7ig-1 kxxht744ihs accelerated from rest by a constant force of 2400 N. What is the sk1i-k4xui7ghxs 47htpeed of the car 8.0 s after beginning?

  98.32: A 3.0-kg block with initial speed 4wcs5d/hu l f,8jyyb:. .0 m/s slides across a rough horizontal floor before coming to rest. The frictional force acting on the block is 3.0 N. How far does the block slide before fyw, dch yu8 :lj/s5.bcoming to rest?

  95.38: A block with initial velocity 4.0 m/s slides 8.0 m a lg4*/x mxj) jhbg4xk.cross a rough horizontal floor before cok*/)jh44 gj.m gxlxx bming to rest. The coefficient of friction is:

  09.21: A 20.0 kg box remains at rest on a horizontal surfac b/71um uy-( au+ f0g0d*exlzflvhg ,xe while a person pushes directly to the right on the box with a forcu*x (h0b/1y +eumx,gg 0dfla7 vlf-uze 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 atz k2:oc o(h9365 - ugzzdc 4towo:gfgw 8 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 t 24ogo:h 3:zu-wwc dok65gcg9 z(fz obetween the surface and the block?

  00.21: A car of mass m slides across a patch of ice at a speed v with its b.f x6x7wfx /zvm -tcu0rakes locked. It then hits dry pavement and skids to a stop in a distanced. The coefficient of kinetic friction between the tires and fv76x 0/xuw x-tz.mf cthe 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 bra(5c0r 8ycc ( ubkzxws5kes locked. It then hits dry pavement and skids to a stop in a distanced. The kc zx b (ysw8c5(05rcucoefficient 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 emergencytons (*zkqh30ry**luvkc m1 0 stop by slamming on the car's brakes and skidding to a stop. How far would the car havevny0l*m( 1sktcq*0o hru3kz* skidded if it had been traveling twice as fast?

  99.39: The driver of an automobile must carefully contror 4aoj*8dt:ltp ) w3t.a8nyz rl each of the following devices. Which 8t la:. trjyo4 d3n )wrt8pza*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 welw)o ee7,2d:uw.ag:ik y4q cyight of 15000 newtons 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 tdiucw w 2:7 ky,q.)ylg4e :eoahe Earth at takeoff?

  07.21: A box slides to the right acro 1ih c(y rl/6e0bryy6h )+ipbkss 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 as the force T. Given that there is friction f and the box accelerates to the right, rank k10rh6 6bibichly yp/(e)r+y the sizes of these three forces exerted on the box.

  02.27: The diagram below shows three roller a- 4e3t zllsu/coaster tracks of equal length. Assume that on all tracks the roller coaster carts start from rest at the same elevation anz l/34t uea-sld 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 cz*+.hx z mfrn1oaster tracks of equal length. Assume that on all tracks the roller c*.xf +zzn1rhm oaster 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 cartr,+/4 wbs3seb91 agxnqy sh32farp3we jn r8/volls 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 acceleratiosa2ys93jr xp ehva3 8wrb4ng+s/3f,qbw en1/ n at point

  02.40: A box with a mass ofv82oa- cwi , ewox3bm:y/hveu,.5a yj 50 kg is dragged across the floor by a rope which makes an angle of 300 with the horizontal. Which of the followinoya :.w2ocvj5 h- wvb ixu 8ea/,m,ye3g 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 pushed against acqkdxhm4)1 jlx7 yl a/545gzl wall by a 100 N force as shown. Thecoefficient of kinetic friction is 05z5 lq/a7kl4 hg1cj)x l4xmyd .30 while the coefficient of static 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 mower across a horizontal pz aieflx /s8b:q;-8 cwatch 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 varib8lqew/ a f:-s8zx; cious force magnitudes, W, f, N, P is CORRECT?

  06.14: A book leans against a crate on8z,*0apuo kls a table. Neither is moving. Which of the following sta,s0 p8lz*ao kutements concerning this situation is CORRECT?

  06.15: A crate of toys remains at rest on a sleigh as the sle+)ak 74agw)l*piyw w figh 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 in speedup thefwil+ aa)4*7w) kwpyg hill?