PARAMETERS PROVIDED:
![\begin{gathered} mass=80\operatorname{kg} \\ velocity=3.4\text{ m/s} \end{gathered}]()
DEFINITIONS AND FORMULA:
Momentum is the product of the mass of a body and the velocity with which it travels. Mathematically, it is calculated as:

CALCULATION:
The momentum is given to be:

CONCLUSION:
The momentum of the football player is 272 kgm/s.