Final answer:
The force exerted on the football is 0.3225 N.
Step-by-step explanation:
To find the force exerted on the football, we can use Newton's second law of motion, which states that force is equal to mass times acceleration: F = m * a.
Plugging in the given values, we have F = 0.43 kg * 0.75 m/sec².
So, the force exerted on the football is 0.3225 N.