A single plate disc clutch has both of its sides effective, transmits power at 250 rpm. The coefficient of friction is 0.25. The outer and inner radii of the friction plate are 100 mm and 40 mm,...

A single plate disc clutch has both of its sides effective, transmits power at 250 rpm. The coefficient of friction is 0.25. The outer and inner radii of the friction plate are 100 mm and 40 mm, respectively. Assuming uniform wear of the clutch, the maximum pressure intensity is 0.1 N/mm². If the moment of inertia of the rotating part of the clutch is 8 kgm², calculate the time to attain the full speed by the machine and the energy lost during slipping of the clutch.

Assuming uniform pressure, find the intensity of pressure and compare the power transmitted with uniform wear to that with uniform pressure.