when a fan is turned off, its angular speed decreases from 150 rpm to 50 rpm in 5.0 s. what is the magnitude of the average angular acceleration (in terms of rad/s2) of the fan?

The magnitude of the average angular acceleration of a fan when its angular speed decreases from 150 rpm to 50 rpm in 5.0 s is - 2.2 rad / s²α = ( ω - ωo ) / tα = Average angular accelerationω = Final angular speedωo = Initial angular speedt = Timeω = 50 RPMωo = 150 RPM t = 5 s1 RPM = 0.11 rad / sω = 50 RPM = 5.5 rad / sωo = 150 RPM = 16.5 rad / sThe average angular acceleration is calculated using the formula,α = ( ω - ωo ) / tα = ( 5.5 - 16.5 ) / 5α = - 11 / 5α = - 2.2 rad / s²Therefore, the magnitude of the average angular acceleration is - 2.2 rad / s²To know more about average angular accelerationhttps://brainly.com/question/15403196#SPJ4