Hit yourself on the head with a baseball bat hard!
The mass of the bat and the baseball.
Softball bats are designed to hit softballs. Hitting a baseball with a softball bat may damage the bat. Either hit a softball or get a baseball bat if you do not want to risk damaging your bat.
a baseball bat that you hit baseballs with
A bat is a stick required to hit a ball in a baseball game
You pull the bat.
To hit a baseball.
A rotational hitter will hit a baseball harder with a heavier bat. This is because if they have enough bat speed, it will have a greater force pushing the baseball the other way.
It matters how far you hit it
You can hit farther with a metal bat.