A multiple disc clutch employs 3 steel and 2 bronze discs having outer diameter 300 mm and inner diameter 200 mm. For a coefficient of friction of 0.22 find the axial pressure and the power transmitted at 750 r.pm if the normal until pressure is 0.13 N/mm^2.
Also find the axial pressure of the unit normal pressure if this clutch transmits 22 kW at 1500 r.p.m