![]() ![]() But if the weight increases too much, the speed of the racket decreases and the hit is less effective. At the same speed, a ball hit by a heavier tool will be faster. When the racket hits the ball, its speed also depends on its weight. What is the reason for this numerical relationship? The weight of the racket tends to slow down the speed of the arm especially when the weight of the tool exceeds this ratio. ![]() The ideal weight of the racket is around 340 grams. In sports where a tool is used to hit a ball, the racket (see figure 1) is usually six times heavier than the ball and about one sixth the weight of the player’s arm. The technical preparation of tennis players also takes physics into account and most of the training techniques are based on it thanks to concepts such as point of impact, balance, inertia and masses. Concepts such as moments of inertia, elastic collisions and momentum are a constant part of the match. As with any other sport, it is interesting to study and apply simple and complex notions of physics in tennis.
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