A 1.80 x 10-3 kg coin is on the outer-most edge of a spinning turntable, which...

A 1.80 x 10^-3 kg coin is on the outer-most edge of a spinning turntable, which has a radius, r, of 0.250 m.

μ_s for the coin-turntable interface is 0.690.

1) The speed at the edge of the turn table is increased until the coin just starts to slide.This maximum speed, v_max , in m/s is:

2) If the period is held constant when v_max is reached and the coin is moved halfway between the center of the turntable and the turntable's outer edge, the coin will have a higher speed and will be less stable. True or False

3) The period, T, for a coin on a turntable is the same at the outer edge as it is at the halfway point. Similarly, as the earth spins on its axis, the period that a person experiences in Seattle is the same as it is at the equator and relative to the universe the period is about 23 hr 56 min and 4s (not 24 hr). True or False

4) The normal force on the above coin depends on its mass, but the maximum speed v_max is mass independent. True or False

Expert Solution

genius_generous answered 8 months ago

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