A simple band brake has the tight side of the band attached to a fixed pivot. The angle of wrap is 280° about a 450-mm diameter drum. A torque of 170 mm is sustained at 900 revs min-1. If the co-efficient of friction is 0.2 the required belt tension at tight side of the belt will be _____

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A simple band brake has the tight side of the band attached to a fixed pivot. The angle of wrap is 280° about a 450-mm diameter drum. A torque of 170 mm is sustained at 900 revs min<sup>-1</sup>. If the co-efficient of friction is 0.2 the required belt tension at tight side of the belt will be _____