A single block brake as shown in the given figure has the diameter of the drum of 250 mm and the angle of contact is 90°. If the operating force of 700 N is applied at the end of a lever and the coefficient of friction between the drum and the lining is 0.35, then the torque that may be transmitted by the block brake will be _____?
1
87.35 N-m
2
88.75 N-m
3
83.75 N-m
4
85.73 N-m