96.30: An 800-kg elevator accelerates dow3w.qlzaq0 3yn2 hfkn0mek11 t nward 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 the instant n0ga.m f94xd pjgd9m+ the elevator has a downwdfg d9jm4x. a0+ nmgp9ard 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 bathroom scale in the schootvki-dn +x05e(7 o jprl’s elevator. When the scale reads 520p( -v0kr+x j7oie5dtn N, the elevator must be

  00.12: Astronauts in an orbiu*q, nsj.+b . p9ps94tkqgwbmting space shuttle are “weightless” because

  06.16: A scientist in the International Space Statyr2ze +ie7cpzx9p7k*gnze 05 ion experiences "weightlessness" becauk0 7ez5c27p+ryei n*ze zgx9 pse

  11.10: A string of negligible masbm7n tv9krijti+90hm37,wd va cz:z-s connects an object of 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. Which one b:a7vrt9dkni c 7mm 3 -9hwzvtjz0+i ,of the following choices describes the relationships between these forces?

  12.10: A string of n. tbdk*uexj.p t0 w:b5egligible mass connects an object of mass M=10 kg to the ceiling of an elevator. The elevator experiences a constant downward acceleration of magnitudx b*5jdw..b0puett k:e $6.0\; m/s^{2}$ . 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 zzx2o6 u9qfehpg3q .1 a horizontal frictionless surface are connected by a massless string A. They are pulled horizontally across the surface by a second stringuzqg1zqx 3 p.fe 9h6o2 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 horizontal frictionless surface are ,; cl t-brse2dgwu;)pconnected by a massless string A. They are pulled horizontally across the surl ;;rb2d ,pg- uct)wseface 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 a horxo2 74.c/ hyiisa ppt00o,vlkizontal frictionless surface are connecteivls p0.k07 ih p/xoo42ta ,ycd by a 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 on a horizontaa;rypmv /cu , .(vj9uvl frictionless surface. A 36 N constant force is applied to X as shown to the right. Tu/yc9;a v urm .p(v,jvhe force exerted by X onY is:

  97.31: Two blocks of mass 1.0 kg and 3.0 k-y( hi151rn(m) h8rl xy:fc jn+aebw zg are connected by a string which has a tension of 2.0 N. A force F acts in the yxnrfz1 +c w( 1j)h:lyb (8me5i -rhnadirection shown to the right. Assuming friction is negligible, what is the value
ofF?

  99.12: Two boxes are accelerated to the right on a fribk2atk b)r e3uf*zrgg2+n 7a 4ctionless 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 th)zgern a72k au43*2b+fgkt bre larger box pull on the smaller box?

  17.15 : Two blocks X andY are in cok7 8npiui7gj(7oxlc7oin +d.ntact on a frictionless horizontal surface. A constant 35 N force is applied to the right onto block Y. What is the magnitude of the forck7ijiu7.(pcn oi8o gx+7dn 7le that block X exerts onto blockY?

  94.25: One end of a massless rope is attached to a mass m; the other end is atta,s b 6oehnnear- hn+n7,rp n0.mqg ( 5i5blmm8ched to a mass of 1.00 kg. The rope is hung over a massless frictionless pulley as shown in the accompanying figure. Mass m acchaerms ,, 0 g5peq.onn6 5l7mibm(nnh8bn+ r-elerates 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 5boah7**h .n ye kaa0pends is hung over a frictionless, massless pulley as shown to the righ0* 7* yaeoap nhk.b5aht. What is the approximate magnitude of the acceleration of the masses?

  02.36: Two masses, m1 and m2, are conkn j+lds6c4 3lnected by a cord and arranged as shown 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, m1, and the tension, T, in the cord were kno3jc64+s lknld wn?

  02.42: A small box of mass m isplaced on top of a larger box of madxw06 )p2rp-ap)iaz g ss 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 friction between all surfaces is μ , what wo)2az wd6g)p pxai0p- ruld be the force accelerating the smaller mass?

  17.25: A box slides with uniform accel9s*)a+ xdewxf(7d j +mtvkt0yjw2i dp(97jua eration up an incline. The box has an initial speed of 9.0 m/s an ska+a)fd0e9w p72vit(+97y xmutwd d*jj xj(d 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 re o:2rfp2l m0)gxxa 4a horizontal surface. A constant horizontal force of mg/2 is applied to the box,la) g4f2:p2xreox 0rm 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 fo8 68znju4ul5g f.spor rce,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, pa 8r5 ugpu. ln6jofsz48rallel to the incline’s surface as shown in the figure.