16=4.9*t^2

Solution for 16=4.9*t^2 equation:

Simplifying
16 = 4.9t2

Solving
16 = 4.9t2

Solving for variable 't'.

Move all terms containing t to the left, all other terms to the right.

Add '-4.9t2' to each side of the equation.
16 + -4.9t2 = 4.9t2 + -4.9t2

Combine like terms: 4.9t2 + -4.9t2 = 0.0
16 + -4.9t2 = 0.0

Add '-16' to each side of the equation.
16 + -16 + -4.9t2 = 0.0 + -16

Combine like terms: 16 + -16 = 0
0 + -4.9t2 = 0.0 + -16
-4.9t2 = 0.0 + -16

Combine like terms: 0.0 + -16 = -16
-4.9t2 = -16

Divide each side by '-4.9'.
t2 = 3.265306122

Simplifying
t2 = 3.265306122

Take the square root of each side:
t = {-1.807015806, 1.807015806}