Question

Neglecting air resistance, when does a struck baseball accelerate downward at a rate of 9.8 m/s2?

Answer 1

A baseball is accelerated downward at 9.8 m/s^2 when the only vertical force acting upon the baseball is gravity.

Answer 2

Only at the precise moment when it has reached maximum height.

Step-by-step explanation:

It's the precise moment when it accelerates downward.