Solve for v. s = vt + 1/2at^2 a) s - 1/2at  b) s/t - at/2 c) 2s/t - at^2 d) 2s - at^2/t

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The equation `s = vt + 1/2at^2` gives the relation between s, v, a and t.

`s = vt + 1/2at^2 `

=> `vt = s - (1/2)*a*t^2`

=> `v = s/t - (1/2)*a*t`

The correct answer is option b

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