Find kinetic friction between flight bag and floor

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Reference no: EM1372632

Q. A flight attendant pulls her 67N flight bag a distance of 367m along a level airport floor at a constant velocity. The force she exerts is 42N at an angle of 55° above the horizontal. Find the coefficient of kinetic friction between flight bag and floor.

Q. A spool of thin wire rotates without friction about its axis. A man pulls down on a wire connected to an inner radius with force of 16.10 N. How long does it take to enlarge the angular velocity of the spool from 11.00 rad/s to 39.00 rad/s? Icm = 0.790 kgm2 Inner radius, r = 0.3400 m Outer radius, R = 0.5600 m.

Consider the similar spool as in the previous problem. Now, in its place of pulling on the wire, the man attaches the wire to the mass of 0.820kg. The man lets go of the mass, and the spool starts to turn. What is the speed of the mass after it has travelled downward the distance of 0.460m? (Assume there is no energy lost to friction.)

Reference no: EM1372632

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