Answer:
Explanation:
initial angular speed ω₀ = 0
final angular speed = ω
time = t
angular acceleration α = 1.88 rad /s ² , θ = angle of rotation in radian
ω² = ω₀² +2 α θ
7.2² = 0 + 2 x 1.88 x  θ
θ = 13.79 rad
let n be no of rotation
2Ï€n = 13.79
2 x 3.14 x n = 13.79
n = 2.2
