The physics
Newton's second law is the working heart of classical mechanics: the net force acting on an object equals its mass multiplied by its acceleration.
Force on a 70 kg sprinter accelerating at 4 m/s²
Answer: force = 280 N (equivalent weight force 28.552 kgf).
What we know
- Mass: 70 kg
- Acceleration: 4 m/s²
Step by step
- Given
- m = 70 kg, a = 4 m/s²
- Formula
- F = m × a
- Substitute
- F = 70 × 4
- Result
- F = 280 N
All results
| Force | 280 N |
|---|---|
| Equivalent weight force | 28.552 kgf |
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