we’re here at our varsity tennis center,to talk about the tennis racket, specifically the sweet spot. in tennis there are sometimes two locationsthat are referred to as the sweet spot. the first is the center of percussion, which isusually on a higher location on the head of the tennis racket.if you were to hit the ball at that location,
the net force, or torque, seen by your handwould be zero because you have different forces balancing each other out.the other location is more towards the center of the racket, and that’s what’s calledthe node. when you hit the ball with the tennis racket, the tennis racket will vibrate ata certain frequency.
when you hit it at the actual node, the vibrationswould be closer to zero. so that would give you a better feel as you hit the ball, andalso would provide more power behind your hit. when you hit the sweet spot you can really tell that you hit the sweet spot because itsounds and feels good. you don’t feel a lot of shock in the racket,whereas if you hit the ball more towards the edge of the racket, you’ll feel a shockand it won’t feel as penetrating through the court.i feel like i know when i hit the sweet spot because it seems almost effortless when youhit the ball. the ball goes super fast. you know, we really never talk about sweetspot, it’s just more or less, the players
you recruit, you know they’re hitting theball in that spot 95% of the time or they wouldn’t be here. how do you figure out the exact location, exact area of the sweet spot?that’s why manufacturers of rackets make the heads bigger in order to increase thesweet spot. it all has to do with the layout of the racket and where weights are balancedand where the center of mass of the racket would be.so bigger rackets have bigger sweet spots. usually, they tend to be.the technology now in tennis is everybody’s looking for the secret sauce. whether it’sin the string or the racket, everybody’s always looking for a little more pop.and it goes without saying, if you want to
get the maximum pop on the ball that you can,you’re going to have to hit the ball on the sweet spot.so kevin, if you don’t end up on the tour someday, your unique background in engineeringand tennis could lead to a career in racket innovations. yeah... that’d be pretty sweet.
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