A band brake having band width of 80 mm, drum diameter of 250 mm, coefficient of friction
0.25 and angle of wrap of 270 degrees is required to exert a friction torque of 1000 N-m. The
maximum tension (in kN) developed in the band is
(a) 1.88 (b) 3.56
(c) 6.12 (d) 11.56