Q&A: A wheelchair ramp needs to be 8 inches high. How long does it have to be to have a mechanical advantage of 5?

A wheelchair ramp needs to be 8 inches high. How long does it have to be to have a mechanical advantage of 5?

Best answer:

Answer by Bert K
MA = (Effort Distance)/(Effort Resistance) = L/H
L = MA * H = 5 * 8″ = 40″
http://www.cstephenmurray.com/Acrobatfiles/IPC/ch3and4/chap4no1.pdf

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Tags: kma, wheelchair ramp, mechanical advantage, resistance, bert

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