Question

A solid cast iron disk of mass 1000kg is rotating at 350rpm. Diameter of the disk is 1m and time taken to come to stop the disk by brake is 1.6sec.Square of radius of gyration is 0.2. Calculate the torque capacity of the brake.

(a) 812.4N-m

(b) 4583.6N-m

(c) 612.4N-m

(d) Noe of the listed

I faced this question by my school teacher while I was bunking the class.

This conceptual question is from the Brakes module in module Friction Clutches, Brakes, Belt Drives and Chain Drives of Machine Design

Answer 1

Best answer is (b) 4583.6N-m

Check out the details: M=E/θ.