Question

In the given arrangement the maximum value of F for which there is no relative motion between the blocks

Answer 1

The answer to this question is 20 N.

Here, F cos 600 is less or equal to ( mg + F sin 600). Then F / 2 is less or equal to 123 and square root of ( 3 sq root of g plus F 3 sq root of 2 ).

It becomes F / 2 is less or equal to g. Means the max valus is 20 N

Answer 2

20 Newton is the correct answer