99.36: What happens to the inertia of an obje 1v o0t-/1 tr:sd+n(qae setzzct when its velocity is doubled?

  02.14: An intrinsic property of matter is one that does not depend on thvi)psf+0 ; pky5kd7 lq v)c.iqe quantity of q q .)+7kfvci5y)lksppd0;ivmatter present. Which of the following properties is NOT an intrinsic property?

  04.16: A 20 kg boulder reh; h8iek97srxg1gy k2sts on the surface of the Earth. Assume the Earth has ma9 xie78ys1 rgh2hk;kgss $5.98 \times 10^{24} \; kg$ 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 Eartntk, nlng 6g5ha* vp./h. What is the magnitude of the gravitational force acting on the earth by thn v/,aggtn.k*p n5hl6e sphere? The Earth mass is $5.98 \times 10^{24} \; kg$ .

  00.09: Is it possible for an obje rden(ma:+q y4ct’s velocity to increase while its acceleration decr (ne:aymq4d+ reases?

  00.11: A certain partib0rsh.: :dbzu)fs0be i2 *nl heq /j(bcle undergoes erratic motion. At every point in its motion, the direction of the particle’sl).qb /0*bsd:ej0i nhbh fu se :zr2b( momentum is ALWAYS

  17.14: A block is suspended in the air at the end of a i(7t8eefjwo+ 8 + ekur5*0y79ngrq ixl x,m kystring 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 force 708y7 i ir 8j+yeolfq9em,x(r +ng ktuk5* ewxto the force of the string on the block?

  07.18: In which one ofqrur5g+ zu6*f,ixg d7 the following situations is the net force constantly zero on the ogdug7r5 iuxr *6,qz+ fbject?

  13.28: An object is in free fall close to the ground. A person intervenes +hv3 uda q(:qh0;xwsband 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 is a and the magnitude(wb:+3u hqh v;0xd qas of the acceleration from gravity is g.

  98.03: An object in equilibrium has three forces, F1 of 30 N,g5ra8qqrn5 5rt(kv , f F2 of 50 N, and F3 of 70 N, acting on it. The magnitude of the res8frg5n55rqavr ,kq (tultant ofF1 and F2 is

  01.07: A force of 6 Newtons and ir*gjr 26vi1 ca force of 10 newtons can be combine to form a resultant with 1r*6icr2gj iv a magnitude of which of the following

  10.06: Which of the following statements is most closely associ 2txu :9gy b2i- oq-3y.mnpkdwated with Newton’s Third Law of yobw .q:kx 2ud2y-n9-p3 i tgmMotion?

  95.06: The reaction force does not cancel the action force becausvf2 x+k3i7puht. 8rhze:

  14.14: A box rests on the flobg9lsjmv d,+nz8w r6:or of an elevator. The elevator is accelerating upward. Which one of the following choices best represents the Newton’s Third Law pair force to the gravitatsdrjzg8l 9wmv+:b n, 6ional force acting on the box by the Earth?

  15.15: A skydiver falls downw j4fd)si deho6,8 k/c ig-pg*mbp3 z8gard through the air with constant speed. Which one of the following choices correctly describes the Newton’s Thirdz)g ,i-p*4mpsh/djk 6g c 8egob8 3fdi Law pair force to the air resistance acting on the skydiver during the fall?

  06.08: A baseball is thrown by a pitchhhk6nnl9pp.5h7soi ;er with a speed of 35 m/s. The batterswings and hits the ball. The magnitude of the force that the ball exerts on the bat is alwaysh7in hs9 p;6hnlp.5 ko

  11.13: A physics book sits at rex1ts vb i5agnbi,9- .vz6zm:yst on a table. On top of the book is a calculator, also at rest. Which ony.x- bn s:,mgazbit5ziv19v6 e of the 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 class were in lab conducting an experi:gbo/qhc *75dtyxp :sment related to Newton's Second Law. The collected ypq:tb5 cdg /7sh:x* odata were displayed 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 doubled while at thsse rs/lk:o43v49 dk ce same time the mass of the object was halved,then the acced s4:e34 v lsk/cso9krleration of the object is

  96.15: A car whose mass is 1500 kg is accelerated uniformly from restjd0upqej 9(x,*l r di0 to a speed of 20 m/s in 10s. The magnitude 0j*9pr(eujl d0iqd, xof the net force accelerating the car is:

  99.05: A tractor-trailer truck is traveling down the road. The mass of tk2zi1 (fr8up n2n .blza,zorchl t (+/he trailer is 4 times the mass of the tractor. If the tractolzz1up 8/anclro.i(2+,ntrf2 h bz(kr accelerates forward, the force that the trailer applies on the tractor is

  99.16: Which of the following principles best explain keycyy8c shf0 (-(m2e ev68lts why large tractor-trailer trucks generaye6 yhf(( cv 0et8y8kmls2e-c lly accelerate much more slowly that automobiles?

  99.19: A 50 kilogram skater at rest on a frictionless rink throws a 2ok6kc7/ n2b hb c73sqap 4sr2c:g jje( kilogram ball, giving3 7ke/2r4jg nk:obqjs(ba7 6 chs2ccp the ball 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 3 n,//yk xqr:s(3sw dvw-eehlweight of 100 newtons is accelehe:x /l sy,/rqwd vns3-k( 3werated 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 co;2vkrh lwo2ob+ j23 miq74t qonstant force of 2400 N. What is the speed of the car 8.0 s after beginningb kotl iroj3+q4 7v mhqo2w22;?

  98.32: A 3.0-kg block with initial speed 4.0 m/s slides across a q 3xb(3)phgj hrough horizontal floor before coming to rest. The frictional force acting on the block is 3.0 N. How far does the block slide befo)3g qh3hxj b(pre coming to rest?

  95.38: A block with initial velocity 4.09uc 3l b7fwy6 d26vaox t-it1i m/s slides 8.0 m across a rough horizontal floor before coming to rest. The coefficient of cyuad-6lxi t6 t3v17if2b9ow friction is:

  09.21: A 20.0 kg box i+udrcq,0 a-)sjw v4aremains at rest on a horizontal surface while a person pushes directly to the right on the box with a force of 60N. The coefficient of)sr4dj,-aa icv+u wq 0 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 acck t 8kzg5:qmhdh 4k9favf1n() elerates 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 d khz () v5fmk8hf:ankg14t9qrepresents the coefficient of kinetic friction between the surface and the block?

  00.21: A car of mass m slides alft uw dwb2 e0v(h1f7 1u3-dkccross a patch of ice at a speed v with its brakes locked. It then hits dry pavement and skids to a stop in a distanw hbk2( u1t1 7e0lfwdfu3vcd- ced. 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 massf-u,l- g /i5flj0gix t m slides across a patch of ice at a speed v with its brakes locked. It then hits dry pavementxguf,--gli0t 5i l jf/ 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 makes an emergency stop by slammigc g;ooi(f ug1vhe.n922 ar: ing on the car's brakes and skidding to a stop. How far would the car have skidd2a co;2:g(g re1ohfg ni.9ivued if it had been traveling twice as fast?

  99.39: The driver of an automobile must carefully control each of theun2)ivh *+d4 hp5qc ht following devices. Which of these devices can cause an accelerationq )vn d2ptuhhic*4 +5h 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 15h r+ s:tuayidxa *)*a7000 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 the Earth at ta*7a+ )rhti:*adxa suykeoff?

  07.21: A box slides et:6o*lj0i rzi7j-wm to the right across 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, rankm0o ei6-lj7t* rz wij: the sizes of these three forces exerted on the box.

  02.27: The diagram below shows three roller 5)8ah gfb g9vtmbn8j5coaster tracks of equal length. Assume that on all tracks the roller coaster carts start from rest at the same elevation and moves fri gn ja)t5hgf89mb58vbctionlessly 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 ro:qk fs/szdcs;m/lm ( 6s58md xller coaster tracks of equal length. Assume that on am6c:f /85/ldds mssk qsmz( x;ll 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 frictionlesslya66hg3uk iqb;;rab6i r(r/15rvp y yk along the curved track from point A to point C under the influence of gravity. What would be the direction of the cart's accelerati uy3qr1phg6r/;krv6(iriab ak by; 5 6on at point

  02.40: A box with a mass of 50 kg is drag 7:v tmzmy2(0 y;jgtelged 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 jym(2y;e tv0lmt7g :zon 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 initialg7f(sqts*c / ) flbnb6ly at rest is pushed against a wall by a 100 N force as shown. Thecoefficient of kinet c*7n q)bffl/sbgst 6(ic friction is 0.30 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 ho( 4 ziebk h od.ezn 0pt;-;b9n8l4glnlrizontal patch of grass with a constan8z 9eelblip4(h;ngl- okb;tnz0d 4n. t 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 various force magnitudes, W, f, N, P is CORRECT?

  06.14: A book leans against a crate on a table. Neither is y*u.e sy pgv01moving. Which of the following statements concerning this situation is CORRp* 0 1gysy.vueECT?

  06.15: A crate of toys remains at re9b:qpub v+ v8ost on a sleigh as the sleigh is pulled up a hill with an increasing speed. The crate is not fastened down t+ubv:8o b qpv9o the sleigh. What force is responsible for the crate’s increase in speedup the hill?