Originally Posted by TCF
One of the first tips I ever heard from Oscar, way back in his tennis tips on TV days, was that the ball loses half its speed from the time it leaves the racquet and reaches the other player. He also repeated this in his first book back in the day.
You guys came to the exact same conclusion....you with detailed research, Oscar through whatever means he used (perhaps just estimating??) way back when!
If the ball did not lose speed, a forehand hit at 80mph (~120 feet per second), would take 0.67 seconds to travel 80 feet to the opposite baseline.
But players know that they have much more than 0.67 seconds (>1.0 second) to react.
Players 100 years ago would have intuitively known the ball significantly slows down during its flight..