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The figures show two inclined planes of ...

The figures show two inclined planes of same height h. However, the lengths of the two planes, are l and 2l respectively. What is the ratio of the mechanical advantage of the two planes?

Text Solution

Verified by Experts

M.A. in case of an inclined plane
`=("length of the plane")/("height of the plane")`
For first plane, `M.A.=l/h`
For second plane, M.A = `(2l)/(h)`
Hence, the required ratio = `(2l)/(h) // l/h`
`=(2)/(1)` = 2:1
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