99.36: What happens to the inertiep9 py whr;k ;)6ohwcj/n 1bz,a of an object when its velocity is doubled?

  02.14: An intrinsic property of matter is one that doeqgd 3e(5f*z ck9:kk dms not depend on the quantity of matter present. Which of the following properties is NOT an intrinsic propert* cd f9me zkdkqg(5k:3y?

  04.16: A 20 kg boulder pi5:kds 5 ltlb /;9o5pwbhzz)rests on the surface of the Earth. Assume the Earth has mahwz) sp i5ldbk: ;lt9/ bz5p5oss $5.98 \times 10^{24} \; kg$ 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 i7r z a(0u726snc+qe 5jdvtkhws in free fall near the surface of the Earth. What is the magnitude of the gravitational force acting on the earth by the sphere? The Earth masr q0wa(7tsenvh62d+c7 5k zujs is $5.98 \times 10^{24} \; kg$ .

  00.09: Is it possible for an obtrp lleo+0.6n/m *:j9u(j; logjdqobject’s velocity to increase while its acceleration decreasopm lld ; b*.oju +6gn:ol(t9jq0re/jes?

  00.11: A certain particle undergoes erratic motion. At every poin iblet) ee 96r8e/2vvrt in its motion, the direction of ther)/b2ee9e vr ve86ilt particle’s momentum is ALWAYS

  17.14: A block is suspended in the air at the endzz 1.mmdt .zm) 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 correctly1tmzz mzd).m. identifies the Newton’s Third Law pair force to the force of the string on the block?

  07.18: In which one of tuwyed*w;+b ;+n 0mhy 2imz)lwhe following situations is the net force constantly zero on the objmei+;+yzn d0);y umhlw2b ww*ect?

  13.28: An object is in free fall close to the ground.mnt c8bpf.7 x)bchr8(lii9l w5t,s5c 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 it is being stopped by the person? The magnitude of the object’s acceleration is a and the magnitude of the acx ib5c,llci8ft9)s5.hpb8 r( t7nwmcceleration from gravity is g.

  98.03: An object in equilibrium haxtyap f g b2zn1058v0gxi)k3s s three forces, F1 of 30 N, F2 of 50 N, and F3 of 70 N, acting on it. The magnitude of g0z 8sx10 vyn2)kb pa3t i5xgfthe resultant ofF1 and F2 is

  01.07: A force of 6 Newtons and a forf ik1j2)s dbo1u1;fy :kdp0r oce of 10 newtons can be combine to form a resultant with a magnitude of which of th ud)fs2 kp;id 1k0o:1ojyrf1be following

  10.06: Which of the following statements is most closely associa + 6do,su -u3vwtr:zgzpk67h nted with Newton’s Third Law ogh7-ut3 zposud6:, vkwn6z r+ f Motion?

  95.06: The reaction force does not cancel the a 2.nkav-1 atrkction force because:

  14.14: A box rests on the floor of an elevator. The elevator is acca 8q0;nzz- xycy . zvtwn67vj)elerating upwar)va vcx;nnyj7w6qy tz .z08-zd. Which one of the following choices 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 downwwjhmd:2m+4/oe w1.c h dh nx/lard through the air with constant speed. Which one of the following choices correctly describes the Newton’2hhx c wlm /.j1d:o/m+hwn4eds Third Law pair force to the air resistance acting on the skydiver during the fall?

  06.08: A baseball is thrown by a pitcher with a speed of 35 m/s. k +p0*fv- ,0wdgorvw id3 j9bu The batterswings and hits the bwidjd*fpobg 9v0w 0,+v -u r3kall. 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 calculato8uvf4gfch v7h g8 inl*gmn8*(r, also at rest. Which one of the following choices is the Newton’s Third Law pair fvfv7u8m(h nhg c*l4g n*ifg 88orce to the force that the table exerts on the book?

  05.06: The students in a -4oqt:s; 60ze akgwnjPhysics I class were in lab conducting an experiment related to Newton's jo;64n:zgat q sek-w0 Second Law. The collected data 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 the same tiyv( ;1znui+c t+xyu4hme the mass of the obvny 4u;t+ u1icx+zh(y ject was halved,then the acceleration of the object is

  96.15: A car whose mass is 1500 kg is accelerated uniformly from rest to a --se3,q.xbf hha1 ;fd3q p5wjo60mlh xufgq (speed of 20 m/s in 10s. The magnitude of the net fedx1fj whbq 33-5 upm;hh,afl(q 0xqsgf.6o-orce accelerating the car is:

  99.05: A tractor-trailer truck is traveling down the road. The mass ofew8me* -sqe2q the trailer is 4 times the mass of the tractor. If the tractor accelerates forward, t w*emee q8-2sqhe force that the trailer applies on the tractor is

  99.16: Which of the following princip5aa1micmd39p les best explains why large tractor-trailer trucks generally accelerate much mor 5dm9amc pia31e slowly that automobiles?

  99.19: A 50 kilogramnmt8m:myijtw5y rk.h7: qk h3iy:/0h skater at rest on a frictionless rink throws a 2 kilogram ball, giving the ball a velociqy it5k my0/87krjn3mh thym ::.:iwhty of 10.0 m/s. Which statement describes the subsequent motion?

  00.13: An object near the surface58/f vby29aqd(eijgik (/q fh of the earth with a weight of 100 newtons is accebfhfy5(age2 kv 8(j9 //qiqd ilerated at $4\;m/s^{2}$ . What is the net force on the object?

  98.25: A car whose mass is 1200 ; o -64kh,*y(cz2br gdpxffqd kg is accelerated from rest by a constant force of 24z qkx( g2dfp bhf*d;o64c,y-r00 N. What is the speed of the car 8.0 s after beginning?

  98.32: A 3.0-kg block with initial speed 4.0 mu4z 8dhjs6bc8 /s slides across a rough horizontal floor before coming to rest. The frictional8zc6hj8b us 4d 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 acvm7yx .j6f *hnc3bf i36c;zkn ross a rough horizontal floor before coming h.nmin76*jfc b; x3 vcf3k6zyto rest. The coefficient of friction is:

  09.21: A 20.0 kg box remains at rest on ;:lpl x ;k8cw;hpcud/.bmd *f a horizontal surface while a person pushes directly to the right on the box with a force of 60N. The coefficient of kinetic friction ;;l dbcd8 hulwp.fx:pc ;m/k*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 accew uov)o 3(1drjlerates uniformly to rest on a horizontal surface. The block travels a distance ofdw3uo) v1rjo( 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 slides across a patch of ice at a speed v with inafrq9bh sqpx2b:sm 7u6n-qq5;,.h cts brakes locked. It then hits dry pavement and skids to a stop in a disfns;x, pbq c auh.65bqhrsqn92:q- m 7tanced. 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 withew1 5 nn,7bluh its brakes locked. It then hits dry pavement and skids to a stop in a distanced. The coefficient of kinetic frictionueh7nb,l1w 5 n 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 emergenbl4 yb5 h52g g3dw;y-yhsh5hy cy stop by slamming on the car's brakes and skidding to a stop. 5hg35yyl-d4hw hb gs5y h2;byHow far would the car have skidded if it had been traveling twice as fast?

  99.39: The driver of an automobile must carefully c)o (ot 0i)ytod;v /5 bchsc5jwontrol each of the following devices. oj/0 icy; v)d5scbw t o()t5hoWhich 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 weight of 15000 newtons is 240b4p*7 kedvow/ 6tn2dd 00 newtons. About how much time is needed to increase the rocket ’ speet2d w4k*vdn67e p/o dbd 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 horizontalgw( sxj8p1s*b 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 the sizes of these *ssjx (gp1b8 wthree forces exerted on the box.

  02.27: The diagram below showgc*i d-a07 jmos three roller coaster tracks of equal length. Assume that on all tracks the roller coaster cartcg-jio7 *ma d0s 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 show2vw n5-qnf3tws three roller coaster tracks of equal length. Assume that on all tracks the roller coaster carts start from rest at the same elevation and3-f5 nwv2 ntqw 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 frictionlessly along thoo5 6q fqun12he curved track from point A to point C under the influence of gravity. What would be the direction of the cart's acc5hq1 n6oqfu2 oeleration at point

  02.40: A box with a mass of 50 khe :q9xqq;u83 3s ovp7 wsxh/y,dl2x qg is dragged across the floor by a rope which makes an angle of 300 with the horizontal. Which of the foll x epl:oq,dv yu97qxh3;2 h/sqsqx8 w3owing 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 pushuje8a z8 27ulved against a wall by a 100 N force as shown. Thecoefficientaeu2l j7uzv 88 of kinetic 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 horizontal patch of grass 8ye2+af .tp8vx ki0tm *t1xtmwith 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 various force magnitudes, W, f, N, P is CORRECT?exmvi ptamt *f1t8+02xky8t.

  06.14: A book leans against a crate on a table. Neither is/:pf:mgqp, xv moving. Which of the following statements concerning this situation is CO:fqpxp g,m:v/ RRECT?

  06.15: A crate of toys remains at rest on a sleigh as the sleigh is pulled upr6e *jklzzmm:6zzp :g j8n 36p a hill with an increasing speed. The crate is not fastened down to tlmpk66:mjzp 3nze* rjz8z6g: he sleigh. What force is responsible for the crate’s increase in speedup the hill?