Question

Figure shows a small block of mass m kept at the left end of a larger block of mass M and length l. The system can slide on a horizontal road. The system is started towards right with an initial velocity v. The friction coefficient between the road and the bigger block is µ and that between the blocks is µ/2. Find the time elapsed before the smaller blocks separates from the bigger block.

Answer 1

Refers to the attachment for the answer.

In the Attachment, The solution is solved properly. The question was too big and contains a lot of mathematical expression which was difficult to type thus I had attached an Attachment.

The Final answer is,

     t=√{4lM/µg(m+M)}  

Hope it helps.  

Answer 2

Explanation:

first photo is for diagram explain