A solid ball - kinetic energy and angular speed

[HandcuffedKitty]

A solid ball of mass 1.30 kg and diameter 19.0 cm is rotating about its diameter at 65.0 rev/min.

What is its kinetic energy?????

Also, if an additional 2.60 J of energy are supplied to the rotational energy,

what is the new angular speed of the ball?????

[Integral]

Rotational kintic energy is given by

{KE = \frac 1 2 I \omega^2

Where I is the moment of initera and \omega= angular velocity.

[HandcuffedKitty]

That doesn't help any

[Loren Booda]

Were you given that, for a solid sphere, I=2MR2/5 ?

How many radians are there in a revolution?