Question

determine angular acceleration of a rotating body which shows down from 500 r.p.m to rest in 10 sec

Answer 1

as w2=w1 - a ×t
as w = 2πN/60
so, w1=2π500/60=52.4 rad/sec and w2=0
so, 0=52.4 - a × 10
so, a =52.4/10=5.24 ans.