Quoting the speed of a tennis ball, baseball ball or cricket ball in km/h is not very helpful. Has anyone ever seen one of these balls travel for an hour. Using m/s makes for more sense.
In baseball, the distance from the pitcher to the plate is 18.39 metres (or 60'6"). If the pitcher delivers the ball at a speed of 100 mph, how long does the batter have before the ball gets to him? If he pitches it at 44 m/s (the exact conversion is 44.69444), it is easy to see that he batter will have about 0.4 s (18.39/44). Martin -----Original Message----- From: USMA <[email protected]> On Behalf Of [email protected] Sent: 04 August 2021 21:58 To: USMA List Server <[email protected]> Subject: [USMA 1768] Olympic Tennis Metrics From an internet posting: "I'm a metric system enthusiast but the Olympic baseball broadcast is displaying pitch speed in km/h, and I am grateful that our stupid measurement system happens to work out so that "100 = A Very Fast Pitch." Actually, I have seen pitch speed in km/h for Wimbledon, and, I think, the French Open, etc. _______________________________________________ USMA mailing list [email protected] https://lists.colostate.edu/cgi-bin/mailman/listinfo/usma _______________________________________________ USMA mailing list [email protected] https://lists.colostate.edu/cgi-bin/mailman/listinfo/usma
