Question: A flat key is to be designed for 1 0 0 mm diameter shaft which will transmit 2 0 0 kW at 3 0 0

A flat key is to be designed for 100 mm diameter shaft which will transmit 200 kW at 300 rpm. If the allowable shearing stress is 300 MPa and key width is 10 mm, determine the length of key.
a.42.44 mm b.44.24 mm c.44.24 in d.42.44 in

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