Assuming the shaft to be freely supported. Calculate the whirling speed of the shaft : 2 cm diameter and 60 cm long carrying a mass of 1 kg at its mid-point. The density of the shaft material is 40 Mg/m3, and Young s modulus is 200 GN/m2.

Assuming the shaft to be freely supported. Calculate the whirling spee

1.	Assuming the shaft to be freely supported. Calculate the whirling speed of the shaft : 2 cm diameter and 60 cm long carrying a mass of 1 kg at its mid-point. The density of the shaft material is 40 Mg/m3, and Young s modulus is 200 GN/m2.
A.	2598
B.	2434
C.	2756
D.	2634
Answer» B. 2434