155=(4.9)t^2

Solution for 155=(4.9)t^2 equation:

Simplifying
155 = (4.9) * t2

Solving
155 = 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.
155 + -4.9t2 = 4.9t2 + -4.9t2

Combine like terms: 4.9t2 + -4.9t2 = 0.0
155 + -4.9t2 = 0.0

Add '-155' to each side of the equation.
155 + -155 + -4.9t2 = 0.0 + -155

Combine like terms: 155 + -155 = 0
0 + -4.9t2 = 0.0 + -155
-4.9t2 = 0.0 + -155

Combine like terms: 0.0 + -155 = -155
-4.9t2 = -155

Divide each side by '-4.9'.
t2 = 31.63265306

Simplifying
t2 = 31.63265306

Take the square root of each side:
t = {-5.624291338, 5.624291338}