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December 21, 2014

Homework Help: physics

Posted by Ashley on Monday, October 11, 2010 at 4:21pm.

a 60kg man is on a steadily rotating Ferris wheel. the man is standing on a bathroom scale and the scale reads 45kg at the top of the wheel. take g=10m/s^2
(a) what does the scale read when the man is at the bottom of the wheel?
(b)what does the scale read when the man is level with the hub of the wheel going up? assume their is sufficient friction that the man's feet do not slide off the scale?
(c) what co-efficient of friction is needed to keep the man's feet on the scale in (b)?
i would like the work shown on how to get the answer, i know that the acceleration points towards the center of the Ferris wheel. i can find the acceleration of 2.5 m/s but don't know what to do next.

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