yes but no because you would have to put a 6 at the end so it should look like this.406.84375
Simple just do normal simple algebra:)
400 in² = (20 in)²
The area of a square is the square of the side length.
The length of one of the sides is 20 inches.
For this case we have the following equation of motion:
h (t) = -16t ^ 2 + 90t
Equaling the equation to zero we have:
-16t ^ 2 + 90t = 0
We look for the roots of the polynomial:
(t) (- 16t + 90) = 0
t1 = 0 (initial position)
t2 = 90/16 = 5.625 s (time it reaches the ground again)
Answer:
it will return to the ground in:
t = 5.625 s
