This report from the American Journal of Physics describes research showing that the grip on a bat during contact with a baseball does nothing to affect the power delivered to the ball. Even if the hitters were to let go of the bat right before contact, the batted ball would have the same speed and trajectory.
%0 Electronic Source %A Nathan, Alan %D 2000 %T When Ball Meets Bat, the Hands No Longer Matter %V 2015 %N 30 January 2015 %9 text/html %U http://www.scienceblog.com/community/older/2000/A/200000553.html
Disclaimer: ComPADRE offers citation styles as a guide only. We cannot offer interpretations about citations as this is an automated procedure. Please refer to the style manuals in the Citation Source Information area for clarifications.