a good baseball pitcher can throw a baseball toward home plate at 91 miles per hour with a spin of 1780 revolutions per minute. How many revolutions

a good baseball pitcher can throw a baseball toward home plate at 91 miles per hour with a spin of 1780 revolutions per minute. How many revolutions does the baseball make on its way to home plate? For simplicity, assume that the 60 ft path is a straight line.