In the context of T-ball, "resting position on his shoulder" means that the batter is holding the bat across his shoulder, typically with one end of the bat resting on his shoulder while the other end points downward. When the batter swings, he moves the bat from this resting position to strike the ball.
Claim:
Batter A will likely hit the ball a greater distance because starting from the resting position allows for a more powerful and controlled swing, optimizing the transfer of energy from the bat to the ball upon contact. This technique can generate higher bat speed and a more solid impact, factors that contribute significantly to the distance the ball travels.