1.

In the figure shown, the wedge is fixedand the masses are released from rest. The coefficient of friction between A and the incline is `mu_(1)` and B and the incline is `mu_(2)`. Then which of the following sentence is (are) correct (I) normal reaction between A and B can never be zero (II) normal reaction between A and B is zero only if `mu_(1) = mu_(2)` A. I onlyB. II onlyC. both I and IID. none

Answer» Correct Answer - D
if `mu_(1) lt mu_(2)`, then also `N gt 0`


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