Answer: [tex]337.5\ N[/tex]
Explanation:
Given
Energy associated with football is [tex]E=108\ J[/tex]
The receiver takes 0.32 m to stop the ball
Suppose F is the force applied
[tex]\therefore W=F\cdot d\\\text{Insert the values}\\\\\Rightarrow 108=F\times 0.32\\\\\Rightarrow F=\dfrac{108}{0.32}\\\\\Rightarrow F=337.5\ N[/tex]
