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

1 answer

c
They will both hit the ground at the same time.

In the absence of air resistance, objects will fall at the same rate regardless of their mass. Therefore, both the backpack full of books and the empty backpack will hit the ground at the same time.