Respuesta :

AwesomeMochi
Work backwards.

s=ut+(at^2)/2

Subtract ut.

s-ut=(at^2)/2

Multiply by 2.

2(s-ut)=at^2

Divide by a.

2(s-ut)/a=t^2

Find the square root:

[tex] \sqrt{2(s-ut)/a}=t [/tex]

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