Physics
Impulse
Force in newtons times the duration in seconds. The result is in newton seconds.
The Formula
J = F x t
Force in newtons times the duration in seconds. The result is in newton seconds.
| Symbol | Meaning | Unit | Notes |
|---|---|---|---|
| J | Impulse | newton seconds | Change in momentum delivered. |
| F | Force | newtons | Force acting on the object. |
| t | Time | seconds | How long the force acts. |
What Each Symbol Means
Jnewton seconds
Impulse
Change in momentum delivered.
Fnewtons
Force
Force acting on the object.
tseconds
Time
How long the force acts.
See It Worked With Real Numbers
A formula on its own does not tell you which number goes where. The how to calculate impulse page applies this equation to a concrete case, shows every intermediate step, and names the mistakes that produce a wrong answer even when the algebra is right.
Where This Formula Appears
This equation is the working core of How To Calculate Impulse, filed under Science. Every number the guide produces comes from substituting into this one line.