When a bat is broken mid-swing during an MLB game, what is the bigger cause behind the break, the velocity of the pitch, or the force behind the batter’s swing?

Question

When a bat is broken mid-swing during an MLB game, what is the bigger cause behind the break, the velocity of the pitch, or the force behind the batter’s swing?

In: Physics

Answer 1

Mostly it’s where the ball comes into contact with the bat. There are thinner weaker spots between the barrel and the knob.