How many revolutions does the baseball make on its way to home plate?
A good baseball pitcher can throw a baseball toward home plate at 92 mi/h with a spin of 1150 rev/min. How many revolutions does the baseball make on its way to home plate? For simplicity, assume that the 60 ft trajectory is a straight line.
First find how long the ball is in the air. Velocity X Distance (converted units of course)
Then multiply by the revolutions per minute and you will get revolutions.
Mainly just a unit conversion problem