96.30: An 800-kg elevator accelerates downward ts+ jt)b1t+ejat$ 2.0\;m/s^{2}$ . The force exerted by the cable on the elevator is:

  98.29: A 50-kg student stands on a scale in an 4qws+gwb3p e ;uet5vzzr -sd 96p4dy ue;16fgelevator. At the instant the elevator has a downward acceleration b61drqep9wd44-epwug 63 ;yue z+ss;g ftv5 zof $1.0\; m/s^{2}$ and an upward velocity of 3.0 m/s, the scale reads approximately

  07.13: Astudent weighing 500 N stands on a bathroom scale in the school’s elev9qn i 2 2/bmfher5c71f1wkjka ator. When the scale reads 520 N, the elej1 2/ 9c1qbf kafnekim2h7rw5vator must be

  00.12: Astronauts in an orbiting space shuttle are “weigh4g/1fqt q2+mnwfyd sp s4h.q(tless” because

  06.16: A scientist in the International Sp )hdx cfe(o9w:ace Station experiences "weightlessnesch)o(e:fw d9 xs" because

  11.10: A string of negligible mass connects an object of mass M=10 kg tq8 :jhtirf- .z iip+b0o the ceiling of an elevator. The elevator experiences a constant downward speed of 3.0 m/s. Let Trepresent the magnitude of the force on the mass M by the string (tension), G represent the magnitude of the gravitational force by the Earth acting on the mass M hanging in the elevator, and F represent the magnitude of the net force acting on the mass M. Which one of the following choices describes the relationshi8.0fip-q tizrbi+j:h ps between these forces?

  12.10: A string of negligible mass connects an object of mass M=10 ky9n uis 5ik(n nvy4.5rg to the ceiling of an elevator. The elevator experiences a constant downward acceleration o innny455ur(.y9vi s kf magnitude $6.0\; m/s^{2}$ . Let Trepresent the magnitude of the force by the string (tension) acting on the mass M, let G represent the magnitude of the gravitational force by the Earth acting on the mass M, and let F represent the magnitude of the net force acting on the mass M. Which one of the following choices describes the relationships between these forces?

  03.06: A 2 kg mass and a 4 kg mass on a ho ((vtvno+yx7qrizontal frictionless surface are connected by a massless string A. They are pulled horizontally across the surface by a second string7x+(qtvvy o (n B with a constant acceleration of $12\; m/s^{2}$ .
What is the magnitude of the force of string B on the 2 kg mass?

  03.07: A 2 kg mass ann)akz. k5 n:+l-idfoe*+ wtlrd a 4 kg mass on a horizontal frictionless surface are connected by a massless string A. They are pullea*zw dne lr.l:5ko+k)+if- ntd horizontally across the surface by a second string B with a constant acceleration of $12\; m/s^{2}$ .
What is the magnitude of the force of string A on the 4 kg mass?

  03.08: A 2 kg mass and a 4 kg mass on *r (r.i zg5vura horizontal frictionless surface are connected by a uri*rr(zg5v .massless string A. They are pulled horizontally across the surface by a second string B with a constant acceleration of $12\; m/s^{2}$ .
What is the magnitude of the net force on the 2 kg mass?

  96.33 : Two blocks X andY are in contact wm: n,zm2 xw oj6gy4s 0rj(js.on a horizontal frictionless surface. A 36 N constant force is applied to X as shown t:(w6 0xr j,gm.sn y4sozj j2wmo the right. The force exerted by X onY is:

  97.31: Two blocks of mass 1.0 kg and 3.0 kg are connected by a strmfzbc6po(aukmu ws *n9kk*cd)92k- 9ing which has a tension of 2.0 N. A force F acts in the direction shown to the right. Assuming friction is negligible, what is the vnumd -* )wc92s kkf 6*umk9zo9a(k pbcalue
ofF?

  99.12: Two boxes are accelerated to the right on a frictionrpeib8 /i(d3o6 ima5s less horizontal surface as shown. The larger box has a mass of 9 kilograms and the smaller box has a mass of 3 kilograms. If a 24 newton horizontal for s/doa(68 eiim 53brpice pulls on the larger box, with what force does the larger box pull on the smaller box?

  17.15 : Two blocks X andY are in contact on a frictionless horizou7bygth23 6p:3dsv t wv9 /yvyntal surface. A constant 35 N force is applied to the right onto block Yvy27h s36 3: vvut9b/ydgwpty . What is the magnitude of the force that block X exerts onto blockY?

  94.25: One end of a massless rope is attached tohxu5 x)wce q 1bgyi1q*2+e6 v qsys:)d a mass m; the other end is attached to a mass of 1.00 kg. The rope is hung over a masbd*exqsu1c 1e+x)gy vhw :6i52y sqq)sless frictionless pulley as shown in the accompanying figure. Mass m accelerates downward at $5.0\;m/s^{2}$. What is m?

  97.30 : A string with masses of 1.5 kg and 3.0 kg on its en 6w1r l kg qxgha:(e7.*j2lgbg/yqh*gds is hung over a frictionless, massless pulley as shown to the right. What is the approximate magnitude of the acceleration o7rl 2q hg/eg 1l *k*qb6x(hggw:y.jagf the masses?

  02.36: Two masses, m1 and m2, are connected by a cord and arranged as sh u36*1guqc hwiown in the diagram with m1 sliding along on a frictionless surface and m2 hanging from a light frictionless pulley. What would be the mass of the falling mass, m2, if both the sliding mass, qcw3u*i6u hg1 m1, and the tension, T, in the cord were known?

  02.42: A small box of mass m isplaced on top of a larger box of ,ytyq, gi pw *e,mqbt,z5n+(zmass 2m as shown in the diagram at right. When a force F is applied to the large box, both boxes accelerate to the right with the same acceleration. The coefficient of fricti 5i,ew+,pq,mq*t(yygtzn ,b zon between all surfaces is μ , what would be the force accelerating the smaller mass?

  17.25: A box slides with uniform acceleration up an incline. The box has / 4k8gcb el2wran initircew48k l 2g/bal speed of 9.0 m/s and rises vertically 2.60 before coming to rest. If the angle of the incline is$30^{\circ}$, what is the coefficient of kinetic friction between the box and the incline?

  05.44: A box of mass mis initially at rest on a hori8 dd9tm: yt(rrmi- oe0q,f+ ptzontal surface. A constant horizontal force of mg/2 is applied to the bo+0eitrdro, fqmt t-9p:( yd8 mx, directed to the right. The coefficient of friction of the surface changes with the distance pushed as $μ = μ_0x$ where x is the distance from the initial location. For what distance is the box pushed until it returns to rest?

  15.24: A mass on a frictionless incline has a gravitational vh nn+5:n7f.s;v z suv3phh 9eforce,a normal force from the incline, and a force applied by a person that all are equal in magnitude. The mass remains at rest and the incline makes an angle θ counterclockwise from the horizontal. Which one of the following choices best de+7v:hh vn un9 szn.hvspf;5e3scribes the orientation of the applied force by the person? The +x-axis is directed upward, parallel to the incline’s surface as shown in the figure.