How can a baseball hit off a tee have a greater exit speed than the swing speed of the bat?

Question

How can a baseball hit off a tee have a greater exit speed than the swing speed of the bat?

In: 1

Answer 1

There’s elasticity in the materials in the ball, and elasticity in the bat(if it’s aluminum, say). Both of those can add energy to the ball’s acceleration from stationary on the tee.