Physics

Free Fall Time Calculator

Find how long an object takes to fall a given height.

Calculated Output

Fall time 3.029

Impact speed 29.714

Formula: t = √(2h/g)

Step-by-Step Breakdown

1. Values used:

2. Drop height = 45

3. Gravity = 9.81 m/s²

5. Fall time = 3.029

6. Impact speed = 29.714

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The math behind it

t = √(2h/g). The impact speed is g·t.

Drop 45 m → 3.03 s, hitting at 29.7 m/s.

Does a heavier object fall faster?

No — in a vacuum all objects take the same time.