Question

If wheem is turning at 3.0rad/s,the time it takes to compelete one revolution? a) 0.33s b)0.67s d)2.1s

Answer 1

The time is `=2.09s`

Explanation:

The angular velocity is `omega=3rads^-1`

The angle is `theta=1 " rev " xx 2pi=2pirad`

`omega=theta/t`

The time is

`t=theta/omega=(2pi)/(3)=2.09s`