免费冲量计算器
计算力的冲量J=Ft。
N
s
Impulse
50.0000 N·s
Impulse vs Time Duration
公式
## Impulse Impulse is the product of a force and the time interval over which it acts, equal to the change in momentum. ### Formula **J = F * delta_t = delta_p** This is the impulse-momentum theorem.
计算示例
A bat exerts an average force of 100 N on a ball for 0.5 seconds.
- 01J = F * t
- 02J = 100 * 0.5
- 03J = 50 N·s
常见问题
How is impulse related to momentum?
Impulse equals the change in momentum: J = delta_p = m * delta_v. This is the impulse-momentum theorem.
Why do airbags reduce injury?
Airbags increase the time of collision, reducing the average force while delivering the same impulse (same momentum change).
What are the units of impulse?
Newton-seconds (N·s), which are equivalent to kg·m/s, the same units as momentum.
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