Recent content by BallBag

  1. BallBag

    Help me get to USTA 5.0? Started as a 3.0.

    I think the video was representative of my serve that day. Its probably playing outdoors and not playing much leading up to that match. The serve goes away really quick if I dont play for a while, at least for me.
  2. BallBag

    Help me get to USTA 5.0? Started as a 3.0.

    Yeah, they are so amazing I stayed back after hitting most approach shots. Like dsp said, kinda of a weird match for me too. Felt off the whole time and I'm not sure why. I want a rematch.
  3. BallBag

    Works Tennis Rankings

    https://tt.tennis-warehouse.com/index.php?threads/itf-ups-the-ante-in-the-global-ratings-game.649070/
  4. BallBag

    Women vs Men Video Recording

    Also makes me wonder about playsight courts where they are recording and broadcasting regardless of the participant's concent.
  5. BallBag

    Move Forward In Tennis And Don't Change A Thing

    Rublev running at 10 MPH and hitting a ball vs Rublev running on a treadmill at 10 MPH and hitting ball would result in Rublev's racket moving 10 MPH faster when running on the court vs. running on the treadmill. Also, if Rublev packed on an extra 50 lb of muscle he would hit the ball harder and...
  6. BallBag

    Move Forward In Tennis And Don't Change A Thing

    I'm glad we can at least put that to rest.
  7. BallBag

    Move Forward In Tennis And Don't Change A Thing

    There is no doubt that the free standing racket deflected more than the one being held. The data is showing that the effect on the ball is negligible. This is also not saying anything about "weight transfer" and its effect on the weight of the racket or apparent weight or any other...
  8. BallBag

    Move Forward In Tennis And Don't Change A Thing

    It doesn't matter if the ball is moving at 30 MPH and the racket is stationary or if the ball is stationary and the racket is moving at 30 MPH or any other combination. The experiment did not preclude attaching mass to the handle creating and effect. A stiffer racket and strings would shorten...
  9. BallBag

    I may have cracked the 8.0 mixed code (3.5/4.5 edition)

    Because she is less likely to hit it back.
  10. BallBag

    Move Forward In Tennis And Don't Change A Thing

    That experiment is with stationary racket so yeah. The racket would deflect more in the child's hand but the ball don't care, he gone.
  11. BallBag

    Move Forward In Tennis And Don't Change A Thing

    The child would have the same result as a grown man as long as both got the racket to the same speed. http://twu.tennis-warehouse.com/learning_center/freehandheld.php Also notice how the PHD that wrote that is not saying anything about momentum.
  12. BallBag

    Move Forward In Tennis And Don't Change A Thing

    You cant transfer weight or momentum into a ball. The only way to make the ball go faster is by hitting it harder. Weight transfer and kinetic chain are complicated ideas that can not be explained with first year physics concepts. You can apply some concepts in very limited ways that are not...
  13. BallBag

    Move Forward In Tennis And Don't Change A Thing

    Yeah, nothing he said is based in physics.
  14. BallBag

    Move Forward In Tennis And Don't Change A Thing

    Your videos are demonstrating that adding lead to the racket will increase the speed of the ball which is true if the racket is moving at the same speed as the unleaded racket. It would also require more force to get the racket to the same speed. If you applied that increased force to a lighter...
  15. BallBag

    Move Forward In Tennis And Don't Change A Thing

    There is so much bad physics in this thread I don't even know where to start.
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