average speed of a soccer ball in a throw-in?

Question

does anybody here know the average force, acceleration or speed on a soccer ball during throw-in?

Answer 1

Average velocity of the soccer ball is 25-30 m/s (about 70 mph)

Average spin is about 8-10 revolutions per second

Average lift force is about 3.5 N

The regulations state that a professional football must have a mass of 410-450 g

This means that the soccer ball's average acceleration is about 8 m/s^2