A heavy and a light cylindrical rollers of diameter D and d respectively rest on a horizontal pla
Channel: Doubtnut
Date: 2020-01-26

A heavy and a light cylindrical rollers of diameter D and d respectively rest on a horizontal plane as shown. The larger roller has a string wound around it to which a horizontal force \'P\' can be applied as shown. Assuming \'mu\' (coefficient of friction) is same at all surfaces of contact, find the critical value of \'mu\' such that larger roller can be just pulled over smaller one.