67=4.9*t^2

Solution for 67=4.9*t^2 equation:

Simplifying
67 = 4.9t2

Solving
67 = 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.
67 + -4.9t2 = 4.9t2 + -4.9t2

Combine like terms: 4.9t2 + -4.9t2 = 0.0
67 + -4.9t2 = 0.0

Add '-67' to each side of the equation.
67 + -67 + -4.9t2 = 0.0 + -67

Combine like terms: 67 + -67 = 0
0 + -4.9t2 = 0.0 + -67
-4.9t2 = 0.0 + -67

Combine like terms: 0.0 + -67 = -67
-4.9t2 = -67

Divide each side by '-4.9'.
t2 = 13.67346939

Simplifying
t2 = 13.67346939

Take the square root of each side:
t = {-3.697765459, 3.697765459}