Impulse

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A force of 50 N acts on a body for 0.2 seconds. What is the impulse imparted to the body?

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1. **Impulse Definition**: Impulse ($J$) is the product of the average force and the time interval over which it acts.
   - Formula: $J = F \Delta t$.
2. **Data Usage**:
   - Force $F = 50$ N.
   - Time $\Delta t = 0.2$ s.
3. **Calculation**: $J = 50 	imes 0.2 = 10$ N·s.
4. **Physical Meaning**: Impulse is equal to the **change in momentum** of the object ($J = \Delta p$).

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