Question

A body rotating with uniform angular acceleration covers hundred by the first 5 seconds after the start its angular speed at the end of 5 second is

Answer 1

given theta = 100

angular acclr = x    (∝)

time = 5 s

apply equation

theta = ω°t + 1/2∝t²

100 = 0 + 1/2*x*25

100*2/25=x

x=8

hence,  ωf = ∝*t

5*8

40

answer is 40