The initial angular velocity of a heavy flywheel rotating on its axis is w_0. Its angular velocity decreases due to friction. At the end of the first minute its angular velocity is 0.8 omega_(0). What is its angular velocity at the end of third minute, if the frictional force is constant ?

The initial angular velocity of a heavy flywheel rotating on its axis

1.	The initial angular velocity of a heavy flywheel rotating on its axis is w_0. Its angular velocity decreases due to friction. At the end of the first minute its angular velocity is 0.8 omega_(0). What is its angular velocity at the end of third minute, if the frictional force is constant ?
Answer» SOLUTION :`a = omega_(1) - omega_(0)//t =0.8 omega_(0)-omega_(0)//1 = -0.2 omega_(0) "rad" MIN^(-2), omega_(3) = omega_(0)-0.2 omega_(0) xx 3 = 0.4 omega_(0) rad min^(-1)`.