Q.

A single block brake as shown in Fig.6 has a brake drum diameter of 1m and the angle of contact is 300. It takes 280 Nm torque at 300rpm. The coefficient of friction is 0.35. Determine the required force 'P' to be applied when the rotation of drum is clockwise.

A. 378.99 n
B. 420.99 n
C. 435.45 n
D. 450.38 n
Answer» B. 420.99 n
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