er 2 Part 1 What is a Force? ork O 10/12 answered Chap 2 Part 1 Q12 Homework . Unanswered Let's calculate the acceleration of a placekicked football. In the video the time the foot of the kicker and the ball are in contact was 0.008 s. That's about 13 times fast than the "blink-of-an-eye"! The average speed of an NFL kick is 60 mph. I'll save you the pain of "Googling" that and tell you that is 26.8 m/s (meters per second). Thus the "change in velocity divided by the time of the contact" equals the acceleration. Type your numeric answer and submit Submit Unanswered . 2 attempts left