t = 0.39 s
Explanation:
Assuming that the ball is launched horizontally, once in the air, if we neglect the resistance of the air, the ball moves at a constant speed, equal to the initial velocity, in this case, 105.1 mi/hr.In order to find time in seconds, it is advisable to convert the speed in mi/hr to m/s, as follows:In the same way, it's advisable to convert 60' 6'' (60.5') to m, as follows:Applying the definition of average velocity, we can find the time traveled by the ball from pitcher's mound to home plate, as follows: