Two blocks of equal mass 2 kg are placed on a roughhorizontally surfaces as shown and a force F is applied on the upper block . The systemis initially at rest . Find acceleration of the lower block in m// s^(2) .

Two blocks of equal mass 2 kg are placed on a roughhorizontally surfac

1.	Two blocks of equal mass 2 kg are placed on a roughhorizontally surfaces as shown and a force F is applied on the upper block . The systemis initially at rest . Find acceleration of the lower block in m// s^(2) .
Answer» `3m//s^(2)` `5 m// s^(2)` ZERO none of these Solution :Both BLOCKS will have COMMON ACCELERATION `a_(c)=(25-5)/4=5m//sec^(2)` [Friction on LOWER block, `f=muN=(1)/10xx50=5N]`