The 10-kg block B is supported by the 40-kg block A which is pulled up an incline by a con...

The 10-kg block B is supported by the 40-kg block A which is pulled up an incline by a constant 500 N force. Neglecting friction between the block and the incline and knowing that block B does not slip on block A. determine the smallest allowable value of the coefficient of static friction between die blocks.