Velocity physics question

Question

A ball is thrown up in the air and then caught at the same height. The acceleration is 9.8 m/s² [down]:

a) on the way up

b) on the way down

c) at the peak of its trajectory

d) two of a, b and c are correct

e) all of a, b and c are correct

Answer 1

All of a), b), c) are correct.

The gravitational acceleration at Earth surface is constant approximately 9.8 m/s² [down].

And no throw balling can affect that.