Physics

Impact Energy Calculator

Find the energy of a falling object at impact.

Mass

Drop height

Gravity (m/s²)

Calculated Output

Impact energy (J) 147.15

Impact speed 7.672

Formula: E = m·g·h

Step-by-Step Breakdown

1. Values used:

2. Mass = 5

3. Drop height = 3

4. Gravity = 9.81 m/s²

6. Impact energy = Mass x Drop height x Gravity = 5 x 3 x 9.81 = 147.15J

7. Impact speed = 7.672

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The math behind it

Impact energy E = m·g·h, and impact speed = √(2gh).

5 kg dropped 3 m → 147 J, hitting at 7.67 m/s.

Does shape matter?

Not for the energy, but a smaller contact area means higher pressure on impact.