The momentum \( p \) of an object is calculated using the formula:
\[ p = m \cdot v \]
where:
- \( m \) is the mass of the object in kilograms,
- \( v \) is the velocity of the object in meters per second.
For the bullet:
- \( m = 0.015 \) kg (since 15 grams is equal to 0.015 kg),
- \( v = 280 \) m/s.
Now, we can calculate the momentum:
\[ p = 0.015 , \text{kg} \cdot 280 , \text{m/s} \]
\[ p = 4.2 , \text{kg m/s} \]
Thus, the momentum of the bullet is 4.2 kg m/s.
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