Physics

Problem

An electric fan blades are spinning at

40\,\text{rad}\,\text{s}^{-1}

. After switching to a higher speed setting, they experience a uniform angular acceleration of

3\,\text{rad}\,\text{s}^{-2}

. Determine the time taken for the angular speed to reach

88\,\text{rad}\,\text{s}^{-1}