The angle described by the shaft in radians in one second for a flywheel rotating at a constant speed of 3000 rpm is:

The angle described by the shaft in radians in one second for a flywheel rotating at a constant speed of 3000 rpm is:

Explanation

To find the angle in radians per second, first convert the rpm (revolutions per minute) to radians per second.


3000 rpm =  3000/60 revolutions per second =  50 revolutions per second.

Each revolution is  2π radians.

So, 

50×2π=100π radians per second.