A disc spinning on its axis at 20 $$\frac{rad}{s}$$ will undergo precession when a torque 100 N-m is applied about an axis normal to it. If the mass momentof inertia is 1 kg-m?, then the angularvelocity of precession is?

A

0.2 $$\frac{rad}{s}$$

B

5 $$\frac{rad}{s}$$

C

10 $$\frac{rad}{s}$$

D

200 $$\frac{rad}{s}$$