Impulse

📊 intermediate

$$J = F \Delta t = \Delta p$$

The change in momentum resulting from a force acting over a time interval.

Variables & Units

$J$

Impulse

Unit: $N \cdot s$

$\Delta p$

Change in momentum

Unit: $kg \cdot m/s$

Key Information

📐 Derived From

Newton's Second Law ($F = dp/dt$).

💡 Example

A bat hitting a cricket ball.

🔧 Applications

Crumple zones in cars.

⚠️ Constraints

Average force over time $\Delta t$.

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