Question

Sandra throws an object into the air with an initial vertical velocity of 38 feet per second, from a platform that is 30 feet above the ground. How long will it take the object to hit the ground?
I know part of the equation to solve it, but I can't figure out the first bit:

h = _t^2 + 38t + 30

Answer 1

Brainliest for first answer!!!!

It is correct.

----k12

Answer 2

To solve it, use the quadratic formula with (½)(-32.174 ft/s²) = a, 38 ft/s = b, and 30 ft = c. There are two answers; the only positive answer is t = 2.986 s