99.36: What happens to the nq gb910zhv+jz5 j5nyinertia of an object when its velocity is doubled?

  02.14: An intrinsic property of matter is one that does not depend on 5n8e q9ew r/ssthe quantity of matter present. Which of the following properties is NOT an intrinsic property?9e5rsswn eq 8/

  04.16: A 20 kg boulder rests on the surface of (ksa5qt*glr 0w47 z xxthe Earth. Assume the Earth has mas5 tx0wsk4aq z7xl(*g rs $5.98 \times 10^{24} \; kg$ 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 neas)7c z aytp3)wr the surface of the Earth. What is the magnitude of the gravitational force acting onyz w)a3cs7 tp) the earth by the sphere? The Earth mass is $5.98 \times 10^{24} \; kg$ .

  00.09: Is it possible for an object’s velocity to incrm() glun)j7 ihease while its acceleration jgm i)(u7hn l)decreases?

  00.11: A certain particle undergoes :*;g6qyph : ltz8i4tux*x*s vqo:xyl3 c+nf t erratic motion. At every point in its motion, the direcx 6:* 8 uy;:nst:flxo+tiqhty * *gcq3 pvxz4ltion of the particle’s momentum is ALWAYS

  17.14: A block is suspended in the air at the end of a string held by a person. ekkv o0z0k e,pl1u37z The person pulls on the string uniformly accelerating the block upward for a short time. D1lek0, uko3kpez 0z v7uring 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 followi4/fg jq6 w7zatng situations is the net force constantly zero6j7fa4wzqt /g on the object?

  13.28: An object is in free fall close to the ground. A person intq92rv.g rwg q 7(7fajkervenes and slows the object uniformly fjggakr9r.7( 2 v7qw qto 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 forces, F1 of 30 N, F2 of 50 N, and r.u6x; khf7 fz2n ked/ 848mdrenr em-F3 ofum28zde.k4hfe -frrdnrmk68 /x7ne ; 70 N, acting on it. The magnitude of the resultant ofF1 and F2 is

  01.07: A force of 6 Newtons and a force of 10 newtons can be combine to form afgj:xrbm6 ;gvrk ,+/n resultant with a magnitude of which of v grjf rbn+ ,m;/:gx6kthe following

  10.06: Which of the following statements is mo63)oz9.kjozu bv *uiuy+at1 nst closely associated with Newton’s Third Law ba.)vtj19 kz uou*i o un36zy+of Motion?

  95.06: The reaction force does not cancel the action force bec,zr sy9xb*szf98 9c-.khw p8qw9p k fhause:

  14.14: A box rests on tut/l*n7c-lfx8 igp ,.br 5emva0;vfmhe floor of an elevator. The elevator is accelerating upward. Which one of the following choices best rxn-0t.pc*lvf ub8/a efm , mg7i 5;lvrepresents 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. 5 k;)k:geekdh Which one of the following choices correctly des k)5;:dekkg ehcribes the Newton’s Third Law pair force to the air resistance acting on the skydiver during the fall?

  06.08: A baseball is thure.tg(k t2c1:mif)x rown by a pitcher with a speed of 35 m/s. The batterswings and hitsurtt ki:g1) xm2 e.c(f the 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 ib9/tj,s.sf x/q mg x)ks 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 tx s/)jkq m/f,9.xsb gbook?

  05.06: The students in a Physics I class were in lab3d*z). ayn;g+ usucnhb,y qm1 conducting an experiment related to Newton's Second Law. The3 yduqy n)u 1,+;zmcsgh*ba.n 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 scrs7rr;1l d(52ene bq ame time the mass of the object was h2 r1b(l qne;dcer75 sralved,then the acceleration of the object is

  96.15: A car whose mass is 1500 s;op. 9m3 :0yun2yd* nzg)hj+bpi/ bsy6ri c vkg is accelerated uniformly from rest to a speed of 20 m/s in 10s. The magnitude of the net force accelera 0z9v.mo/:ihyp2nc)gj by; pib6d+ suns ry *3ting the car is:

  99.05: A tractor-trailer truck k8f o(+oe1t8ahiym.n is traveling down the road. The mass of the trailer is 4 times the mass of the tractor. If the tractor accelerates forward, the force that the trai+oin8ake (mfot y1 .8hler applies on the tractor is

  99.16: Which of the follof)l;ek forcd637tls 1wing principles best explains why large tractor-trailer trucks generally accelerate e61ksff3lc; r7)o t ldmuch more slowly that automobiles?

  99.19: A 50 kilogram skater at rest on a frictionless rink vzy)*o9zq 0axthrows a 2 kilogram ball, giving the ball a velocity of 10.0 m/s. Which statement describes the suqy*oz9x za v)0bsequent motion?

  00.13: An object near the surface of the earth with a weight/3+cr; i/hh0 wmrgn,y b9fz qx,2z nfe of 100 newtons is accelf3/bqnr,m9n + xzh/eifgc;,ryw02hz erated at $4\;m/s^{2}$ . What is the net force on the object?

  98.25: A car whose mass i) crv h/dt99sk,brk .js 1200 kg is accelerated from rest by a constant force of 2400 N. What is the speed of the car /rsvh)dr 9., k9tcbkj8.0 s after beginning?

  98.32: A 3.0-kg block with initial speed 4.0 m/s slides across a rougl;/q59 pn:rie5 dekn.kr g (etr-xys.1a(f tph horizontal floor before coming to rest. The frictional fd :pkef r1r.xy.l/ sp9engk a55tt- ire( n;(qorce acting on the block is 3.0 N. How far does the block slide before coming to rest?

  95.38: A block with i) h1v7ltkpq o lbo8m2mx:ax .6nitial velocity 4.0 m/s slides 8.0 m across a rough horizontav2h7m8b:lo 6q xm.pko)x l1tal floor 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 vv4lbc:nadqk l16/p:+59 kw m0x. cjowr(innerson pushes directly to the right on the box with a force of 60N. The coefficient of kinetic friction between the box and the su1:ncv5lx9wb:qnv rknp0mlwd /(o jc 4.k ia +6rface 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 accelerates uniformle+::/rpqkvfzh 8;hr qy 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 between the surface and:/q 8 rqe rfh+v;z:pkh the block?

  00.21: A car of mass m slides across a patch of ice at a speed v with its brak l1kb:jn.ckp3d y68rqd (bf8 jp(zet/es locked. It then hits dry pavement an(b z3c(n1p8:feqlj rkjtyp8.bd/d k6d 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 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 zd*bwgq6vi 1/+ps2nk-qq tv 2 brakes locked. It then hits dry pavement and skids to a zvpg w *i6/t-bk+nqv2sq2q d1stop 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 slamming on the car's c3a .bsto 4g5a : gpyxk7i(i/5mre8nwbrakes and skidding to a stop. How far wc5pga 4t:i8 ge knr(y wia7b/3x5smo. ould the car have skidded if it had been traveling twice as fast?

  99.39: The driver of an automobile must carefully control each of the fo hjdc 7f;pi29v k3o5isllowing devices. Which of the5vjs;93 72fc hpoikd ise 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 o9ye1 s g(u3/q/nv5wum1kmpn a weight 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 (n uo py/mng5su1vkqe/wm931the surface of the Earth at takeoff?

  07.21: A box slides to the right across a horizontal floor. A person callez au*ym2j s*5dd 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, ran5suy *2da*jmzk the sizes of these three forces exerted on the box.

  02.27: The diagram below shows three roller coaster tracks of equal le599)f9v+uu ogw shxxxngth. Assume that on all tracks the roller coaster carts start from rest at the same elevation and moves frictionlessly over the tracks to the fhvg su9fuo )x599+wxx inish.
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 rollcvgr *mwh0*o6.fe / hver coaster tracks of equal length. Assume that on all tracks the roller coaster carts start from rest at the same elevation and moves frictionlessly.*h mh*/eogvw vr0f 6c 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 alon/ywmo,z 0.sa ag the curved track from point A to point C mawz/o .asy,0under 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 dragges0jweont- . tuyt7fe-x. k b14d 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 on the rope is required to move the k0e.ttn-yxw fo b.j71st e-4u 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 by a 100 N fpy o(0.q +yg* np dn*k5mgin*sorce as shown. Thecoefficient of kinetic friction is 0.30 while the coefficient of static friction is 0.50. What is true of the friction acting on the m*y0dysk * p n*o+5niqg. (npgblock after a time of 1 second?

  05.10: A homeowner pushes a lawn mow:.*ylv zr-sop,i lj.-z2tzc fer across a horizontal patch 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 vrl,fs--*.iz : v. j tzyczlpo2arious 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. Newfm)qa 82zd -oc0 h, hhmehs34ither is moving. Which of the following statements concerning this situation is COR)hde 48m3sc,qaowh2 zh- 0 hfmRECT?

  06.15: A crate of toys remains at rest on a sleigh as the sleigk51p dj-:kk wqh is pulled up a hill with an increasing :kj 1dkw5kpq-speed. The crate is not fastened down to the sleigh. What force is responsible for the crate’s increase in speedup the hill?