Momentum (p) is calculated using the formula:
\[ p = m \times v \]
where:
- \( m \) is the mass of the object (in kilograms),
- \( v \) is the velocity of the object (in meters per second).
For the football player:
- Mass \( m = 97 , \text{kg} \)
- Velocity \( v = 8 , \text{m/s} \)
Now, plug in the values:
\[ p = 97 , \text{kg} \times 8 , \text{m/s} = 776 , \text{kg} \cdot \text{m/s} \]
So, the momentum of the football player is 776 kg·m/s.