\[t = \sqrt{\frac{2h}{g}}\]
Variables
ttime of fall (s)
hfall distance (m)
ggravitational acceleration (m/s²)
Description
What is this formula?
This equation calculates the time required for an object to fall from a certain height under constant gravitational acceleration.
When to use it
Use this formula when an object is dropped from rest and air resistance is negligible.
Example
If an object falls from a height of 45 m on Earth:
t = ?((2 × 45) / 9.81) = 3.03 s
Applications
Physics experiments, gravitational motion studies, engineering safety analysis, fall simulations, and educational calculations.