In case of pulling & pushing minimum for...

In case of pulling & pushing minimum forces required `(w sin alpha)/(cos(theta-alpha))` & `(w sin alpha)/(cos(theta + alpha))` then acceleration are

A

`a=g, a=g//mu`

B

a = 0, a = 0

C

`a = g//mu, a = mu g`

D

none

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The correct Answer is:

B

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