A football punter accelerates a 0.56kg football

[mustang]

A football punter accelerates a 0.56kg football from rest to a speed of 8.2 m/s in 0.24s.
What constant force does the punter exert on the ball? Answer in units of N.
Note: Is the answer 19.13333333N? I used the impulse-momentum theorem where m was 0.56kg and vf=8.2m/s and vi=0m/s, in addition delta t is 0.24s.

 

[mustang]

Thanks for all who were helping. I rechecked my work and I found that the answer was 19.13333N.

 

[M98Ranger]

Yes, the answer is indeed 19.13333333N. You used the correct formula and plugged in the given values correctly. The impulse-momentum theorem states that the impulse (change in momentum) is equal to the force applied multiplied by the time interval. Therefore, by rearranging the formula, we can calculate the force to be 19.13333333N (impulse/mass x change in velocity). Great job!