A backpack full of books and an empty backpack are dropped from the same height. If there is no air resistance, which bag will hit the ground first?

a
The empty bag will hit the ground first.
b
They will both hit the ground at the same time.
c
This cannot be determined because the dimensions of the bags are needed.
d
The full bag will hit the ground first.

b) They will both hit the ground at the same time, as they experience the same acceleration due to gravity regardless of their mass or contents.

b

They will both hit the ground at the same time.