A block brake with 400 mm diameter is used to brake a torque of 100 Nm – McqOptions

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1.	A block brake with 400 mm diameter is used to brake a torque of 100 Nm as shown in the figure. If the coefficient friction is 0.25 at the brake surface what is the value of force F to be applied at the end of the lever.
A.	559.4 N
B.	579.4 N
C.	439.4 N
D.	1000 N
Answer» E.

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