Answer:
(2) sqrt( 2d /a) =t
Step-by-step explanation:
d = 1/2 a t^2
Multiply each side by 2
2d = 2*1/2 a t^2
2d = a t^2
Divide each side by a
2d/a = a t^2 / a
2d /a = t^2
Take the square root of each side
sqrt( 2d /a) = sqrt( t^2)
sqrt( 2d /a) =t
