99.36: What happens to the inertia of an object when its ve*qvc3 r0+aep: jtea-p j p,xqf*p 46cylocity is doubled?

  02.14: An intrinsic property of matter is one that does not depend ong*gq uohu0hk9x* -5uh the quantity of matt-h * g0uh9k gqhoxu5*uer present. Which of the following properties is NOT an intrinsic property?

  04.16: A 20 kg boulder resphc 5m 8xc;c)ets on the surface of the Earth. Assume the Earth has m)8c p;ccehx m5ass $5.98 \times 10^{24} \; kg$ 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 iscy.7xqy8e:nac s-2 t y in free fall near the surface of the Earth. What is the magnitude of the gravitational force acting on the earth by the sphere? c y7 y:-y nc2xasqe8.tThe Earth mass is $5.98 \times 10^{24} \; kg$ .

  00.09: Is it possible for an object’s velocity to increase while its acceled :)deeqxfl*,d fk8 +dration d8:ddel)ke* d,+ fxf qdecreases?

  00.11: A certain particle undergoes erratic motion. At every point m qfqyb/;qa;8qy 3k;ej;k3sfin its motion, the direction of the particle’s momentbjqf;/f 8sy3qq kyaq;;;kme3um is ALWAYS

  17.14: A block is suspended in the air at the ehn1 8fa; b ;fi1zpxo-kfv0 1wqnd 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 force to the force of the string o0 ; 1x1zqwifnp h8ba;vko1f-fn the block?

  07.18: In which one of the following situations is the net fyc0 6;rds 5 h :b-lgi2zkr8ch70vu1awg jsu4uorce constantly zero on t7s0dg zwri-huc k0c:5u avsg r1b6y4lh28;juhe object?

  13.28: An object is in free fall close to the g*n) vnn8 9ktmfround. 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 itm9nf8n*vk)t n 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, F1f7v ,u+(hrcn ;rkz0mfoqno3y f7; l,e of 30 N, F2 of 50 N, and F3 of 70 Nr0uhoc+yolz,f; nvf;n r kq3e77m,(f, acting on it. The magnitude of the resultant ofF1 and F2 is

  01.07: A force of 6 Newtons and a force of 10 nebzyex)nb0 6a80w)8j up; css pwtons can be combine to form a resultant with ;u0 z 8 eb)p8xsw)n0jba6cspya magnitude of which of the following

  10.06: Which of the following statead ihfm -baq/n, gl9--ments is most closely associated with Newton’s Third Law of aihd nmb/fg9, a--q -lMotion?

  95.06: The reaction force does noyf* m+v+igey dnd,7-ygu ddj :( kr3t2t cancel the action force because:

  14.14: A box rests on the floor of an elevator. The elevator is accelerat)mbz 8ic 0t6 cfv+m(u64pyxgsing upward. Which one of the following choices best represents the New(g y+z 646ufvspx8i0mt)mc cbton’s Third Law pair force to the gravitational force acting on the box by the Earth?

  15.15: A skydiver falls downward thrdt 2x)6z:j uweough the air with constant speed. Which one of the following choices correctly describes the Newton’s Third Law pair force to the air resistance acting on the skydiver duruez)2dt:6 jwx ing the fall?

  06.08: A baseball is thrownv bxdujg4 /,ssv+a(glg,1;;r/ shpck by a pitcher with a speed of 35 m/s. The batterswings and +kdub4v p v,r;s ( g ssh,/gxcj/lg1;ahits the ball. The magnitude of the force that the ball exerts on the bat is always

  11.13: A physics book sri6)0 ) ecukawits at rest on a table. On top of the book is a calculator, also at rest. Which one of the following choices is the Newton’s Third Law pair force to the force that the table exerts on the book? )k 06reuia) cw

  05.06: The students in a Physics I class were in lab conducting an expecbp/ ck) 1 hw n2.sz2)kehl0zrriment related to Newton's h1 br)zc 20zhc/pl 2).keswknSecond 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 vg 8 w)t7gmkmis4a)t+( 1b:hdagooq+ while at the same time the mass of the object was7+gdi4mvg swhoq+ot:gm)bt( k 8a1 )a halved,then the acceleration of the object is

  96.15: A car whose mass is 1500 kg is accelerated uniformly from re;q s5k.wll du2st to a speed of 20 m/s in 10s. The magnitude of the netwsk5;q2ull d. force accelerating the car is:

  99.05: A tractor-trailer truck is traveling down the roadp 0r2kqxga)3hvd7k 0c . The mass of the trailer is 4 times the mass of the tractor. If the tractor accelerates forward, the force that the trailex)72k0 kpa3 hgc0q vdrr applies on the tractor is

  99.16: Which of the following principles best ex9laix ,gzf8u9 6ntm 3rplains why large tractor-trailer trucks generally accelerate much more slowly8azmxlfi9,r 9 gn u6t3 that automobiles?

  99.19: A 50 kilogram skater at rest on a frictionless rink thpim1c 69 q5)aq pfu l4;fefpv8rows a 2 kilogram ball, giving the ball a velocity of 10.0 m/sve8);c 5qp6ff19lpi fmua4q p. Which statement describes the subsequent motion?

  00.13: An object near the surface of the earth with a weight of 100 newt1gc8 h-e z:dn9:l)tb8)ve e rvvp)xobons is accelerated at)p-c:) gvb :9n)trzo bvlx81e8de e vh $4\;m/s^{2}$ . What is the net force on the object?

  98.25: A car whose mass is 1200 kg is accelerated from rest by a constantgyca z::kt2,c force of 2400 N. What is the sptacc:ykg,:z2 eed of the car 8.0 s after beginning?

  98.32: A 3.0-kg block with initial speed 4.0 m/s woe/ 0e*dd4msb47np jslides 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 slide70mp*o4e w dn4 des/bj before coming to rest?

  95.38: A block with initial velocity 4.0 m/s slides 8.0 m across a routtaeb 2-w*cf4e ub.1o /jku q*gh horizontal floor before coming to rest. The coeffi u-bkctte4f/j1 aw.qu*2be *ocient of friction is:

  09.21: A 20.0 kg box b ,bju 5a ydq0qre.ej1fujt/;8y,o d0remains at rest on a horizontal surface while a person pushes directly/,.dq 5yo0y ujj j0dt8f1;ubab,r eeq 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 m/s ac0z7l t 7wn88kndav0cz celerates 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 knzn avtl 07d w78zk80cinetic 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 its brakes ccpz3:4pg5 j x5ntoa4 locked. It then hits dry pavement and skids to a stop in a distanced. The cnco4g:j 5 zx4cta5p3poefficient 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 acroa +j66::vv0 pyut3 te *l0ymna/xfhea ss a patch of ice at a speed v with its brakes locked. It e j*0/3vp6aafut60x+lyvt nay he :m: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 speed of 2v, it would have skidded a distance of

  04.32: he driver of a car makes an emergency b/zkhp/ 6 w9bid:wv 5 4kpb82zmuuqo,stop by slamming on the car's brakes and skidding to a stop. How far would the car havez629hpz8wb md/:/, iow4kpk5 vuq u bb skidded if it had been traveling twice as fast?

  99.39: The driver of an automobile must carefully contrg m x4)j0x 2beqzri-h-ol each of the following devices. Which of these devices can cause an xgb-r0z4 -hxj2iq)me 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 24000 nhv 2:krzx:s5 hewtons. About how much2vk rx:s h:zh5 time 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 person called Tcmwytb p d9l a/6g(z3-ed 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. pmgc 6z dbl -(aw9/t3yGiven 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 eq+h rte6ae5vt + hx3-n, ai4htuual length. Assume that on all tracks theeartat+h5ntx e+h ih-46 uv3 , 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 be traveling the fastest at the finish?

  02.28: The diagram below shows three roller coaster tracks of equal rbo4v/if+54oqx*ins1u,cxz kgz g;1 length. Assume that on all tracks the roller coaster carts start from rest at the same elevatio,o+vzbg 1f * cigsr zqx1 /44oxnu;k5in 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 cartrheg61+7w6rl .unc csa*-ya jlw7og4 o olls frictionlessly along the curved track from point A to pointaey.6g lww7+ogsr c- 1na7 *h ljuc4o6 C under the influence of gravity. What would be the direction of the cart's acceleration at point

  02.40: A box with a mass of 50 kg is dragged aj/nhu(ysy8 p8cross the floor by a rope which makes an angle of 300 with the horizontal. Which of the following would be closest to the coefficie/ys8n(yu phj8nt 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 a wall o(0g . t5g)wa q; vb+vsw5rwebby a 100 N force as shown. Thecoefficient of kinetic frictionvg(s 5+.)abtr; 0woqbgwwev5 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 lawnm w fw xye+)h8/welq6* mower across a horizontal patch of grass with a constant speed by applying a force P. The arrows in the diagram correctly indicate the direction*ww eylh+mq6ex f)8w /s 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 movinwoa s gkc/*o cz-;t;6kg. Which of the following statements concerning *-go kt/;;zcaoc6 w skthis situation is CORRECT?

  06.15: A crate of toys qhd3t qwh9t1( remains at rest on a sleigh as the sleigh is pulled up a hill with an increasing speed. The crate is not fastened do twh1(q9 th3qdwn to the sleigh. What force is responsible for the crate’s increase in speedup the hill?