Momentum \( p \) of a particle can be calculated using the formula:
\[ p = m \cdot v \]
where:
- \( m \) is the mass of the particle (in kilograms),
- \( v \) is the velocity of the particle (in meters per second).
Given:
- Mass \( m = 10 \) kg,
- Velocity \( v = 5 \) m/s.
Now, substituting the values into the formula:
\[ p = 10 , \text{kg} \cdot 5 , \text{m/s} = 50 , \text{kg m/s} \]
Thus, the momentum of the particle is \( 50 , \text{kg m/s} \).