Question

a body accelerated uniformly from rest at 2m/s calculate it velocity after travelling 9m

Answer 1

Do you mean a = 2 m/s^2 ???
if so
then
v = Vi + a t = 0 + 2 t
d = Vi t + (1/2) a t^2 = 0 + t^2
9 = t^2
t = 3 seconds

Answer 2

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