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A rectangular wire frame ABCD is in vert...

A rectangular wire frame ABCD is in vertical plane is moving with a constant acceleration a into the plane as shown . Direction of gravity is shown inn figure . A collar can move on wire AC of length l . Coefficient of friction between wire and collar is `mu`. Find
ltbr. (i) The ..... (i) maximum acceleration a so that collar does not slip on wire.
(ii) The time taken by collar to reach C if acceleration is half the value calculated in part

Text Solution

Verified by Experts

The correct Answer is:
` a = g/mu sqrt(sin^(2)theta = mu^(2) cos^(2) theta)`
` t [ (2l)/(g[sin theta - 1/2 sqrt(3mu^(2) cos^(2) theta + sin ^(2) theta )]]]^(1/2)`
` a = (2l)/(t^(2))`
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