Two rocks - one large rock and one small rock - are dropped from the same height at the same time. Which value is the same for the two rocks?

Question

the masses of the rocks
the time it takes for the rocks to fall
the air resistance acting on the rocks
the weight of the rocks

Answer 1

The time it takes for the rocks to fall is the same for both rocks. This is because they are both dropped from the same height at the same time, so they will both experience the same acceleration due to gravity and will fall at the same rate. The other values may be different for the two rocks.