Question

Please help me I will really appreciate it!!!

Answer 1

t =
`\sqrt{(-2(h-1))/(a) }`

Explanation:

solve for t

h = -
`(1)/(2)`a
`t^(2)` + 1; multiply both sides by -2

-2h = a
`t^(2)` - 2; add 2 to both sides

-2h + 2 = a
`t^(2)`; divide by a

(-2h + 2) / a =
`t^(2)` ; take the square root

t =
`\sqrt{(-2(h-1))/(a) }`