96.30: An 800-kg elevator accelerc;(vwf1 2 aprpates downward at$ 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 elevator. At theffqy(yf7my4+4 ss8j p9ztr+ w instant the elevato4y f7(zqm +fp+4s89stjr yfywr has a downward acceleration of $1.0\; m/s^{2}$ and an upward velocity of 3.0 m/s, the scale reads approximately

  07.13: Astudent weighing 500 N stands on a bac(qyyu ufw5y :in4(xi0)q/ t 4c /kjl5jxlxz3throom scale in the school’s elevator. When the scale reads 520 N, the elu (j05nftj4xy(q5zi) /ql y /kyxcuwil x43:cevator must be

  00.12: Astronauts in an --7ayyg4pwi -lvpdc 2orbiting space shuttle are “weightless” because

  06.16: A scientist in the International Space Stapk0c(j+bt7/ 4gy j7v9r p c9y/uv ithqr,msu9 tion experiences "weightlessness" becaus uv 70+pjpyqsbv c tt9,j7/khm(uricr4 y9 9g/e

  11.10: A string of negligible mass connects an object of2t;lr (enldvd9h 9y(la * d)ly mass M=10 kg to 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.el ;l) 9 ynadl*2 vthy9lddr(( Which one of the following choices describes the relationships between these forces?

  12.10: A string of negligible+hj p6ui(iu b 5tfb x4q54av6l mass connects an object of mass M=10 kg to the ceiling of an elevatorb6 ibful xv4j6ah pti5u4 5q+(. The elevator experiences a constant downward acceleration of 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 horizontal frictionless surface arorf. vcw.gqob/1 2oy .sso,eag 9:/ fme connected by a massless .c 2os// 1efq9bgf,.ym:w voosg.ora 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 force of string B on the 2 kg mass?

  03.07: A 2 kg mass and a 4 kg mass on a ho3 lxszf.f 2ax5prep//rizontal frictionless surface are connected by a massless string A. They are pulled horizontally across the surface by a second string B with a coal/z 2s p pefxf/.5rx3nstant 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 m38 ;grsc4l zqbnuds97ass on a horizontal frictionless surface are connected by a massless string A. They are pulled horizontally across the surface by a 8s ulznrc9s4 g37bd;qsecond 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 axr2v :,iq-hw lndY are in contact on a horizontal frictionless surface. A 36 N constant force is applied to X x,v2: iw-hlqr as shown to the right. The force exerted by X onY is:

  97.31: Two blocks of mass 1.0 kcrwnc * 9x*sw2g and 3.0 kg are connected by a string which has a tension of 2.0cw** sxn cr2w9 N. A force F acts in the direction shown to the right. Assuming friction is negligible, what is the value
ofF?

  99.12: Two boxes are accelerated to the right on a fjth 56 1nvw3rzrictionless 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 force pulls on the larger box, with what force does the larger 35hz 61tvrjwnbox pull on the smaller box?

  17.15 : Two blocks X andY are in co7ar3)jhpm tcp,n7sw3 a c2 d)gntact on a frictionless horizontal surface. A constant 35 Nmcrwcja)h t n)dg,77s p2 3ap3 force is applied to the right onto block Y. What is the magnitude of the force that block X exerts onto blockY?

  94.25: One end of a massless rope is attached to a mass m; thg1(bjx1fu8/tpc xvjl zzh10 * e other end is attached to a mass of 1.00 kg. Thbjct0 j1gzlh1 (x p*8vzfu/x 1e rope is hung over a massless 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 sy0jrc*hx+w)5 5n tb))ydx uzand 3.0 kg on its ends is hung over a frictionless, massless pulley as shown to the right. What is the appr ztjrby0c d5y+ ))ws n)5u*xxhoximate magnitude of the acceleration of the masses?

  02.36: Two masses, mv* mrne ; )20/gd3oxewige2ap1 and m2, are connected by a cord and arranged as shown in the diag e 2ee nra*;3mpgig0 2wd/)vxoram 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, 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 mass 2tqsns .g o2/h/zk3z -mm 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 friction between z/3 z g qtnks2-smo/h. 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 bo:yp pvnnz,e:) x has an initial speed ofezp,:p ny )v:n 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 horizontal surf-z8j dno2ypi*z kl2qfa.m6 + kace. A constant horizontal force of mg/2 is applied to the box, directed to the right. The cop2mi2-odyajz+ q. f nk*68klzefficient 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 t+kbt p.wglp2+c/,7 zq k/ssbgravitational force,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 describes the orientation of the applied force by the person? The +x-axis is directed upward /tgk+.k zpbb+2tl/,p7scs qw , parallel to the incline’s surface as shown in the figure.