Kinetic Energy Calculator
Mass
kg
Velocity
m/s
Kinetic energy is the energy an object possesses due to its motion. It depends on both mass and velocity — doubling the mass doubles kinetic energy, but doubling the velocity quadruples it.
- 1KE = ½mv²
- 2m = mass in kg, v = velocity in m/s
- 3KE is in joules (J)
1 kg at 10 m/s=50 J½ × 1 × 100 = 50 J
1,500 kg car at 30 m/s (108 km/h)=675,000 J = 675 kJ½×1500×900
| Object | Mass | Speed | KE |
|---|---|---|---|
| Baseball (pitch) | 0.145 kg | 40 m/s | 116 J |
| Car (highway) | 1,500 kg | 30 m/s | 675 kJ |
| Bullet | 0.010 kg | 900 m/s | 4,050 J |
| Person walking | 70 kg | 1.5 m/s | 79 J |
References
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