Q 30. A disk clutch is required to transmit 5 kW at 2000 rpm. The disk has a friction lining with coefficient of friction equal to 0.25. Bore radius of friction lining is equal to 25 mm. Assume uniform contact pressure of 1 MPa. The value of outside radius of the friction lining is:
(A) 39.4 mm
(B) 49.5 mm
(C) 97.9 mm
(D) 142.9 mm
Answer: (A)
Explanation:
