Question

How freefall is possible on moon ?

Answer 1

Our Moon has gravity so you can fall on its surface exactly as on Earth.

Explanation:

Although the force of attraction (gravity) is smaller on our Moon (due to its smaller mass) it exists. Basically you will be attracted by the Moon and you will attract the Moon exactly as on Earth.

The tricky thing that usually troubles us is the absence of an atmosphere AND the fact that the astronauts seemed to fall slowly and be able to jump for long distances on the surface of our Moon. The atmosphere has nothing to do with free fall (on the contrary its absence helps it) and the astronauts seemed to jump longer distances only because their weight (gravitational attraction) is smaller on the Moon.

Near the Surface :
On Earth: you fall with an acceleration of gravity `g=9.8m/s^2`;
On the Moon: you fall with an acceleration of gravity `g'=1.6m/s^2`;
So, if you drop a rock on the Moon it will fall (acceleration `g'`) taking a bit longer than on Earth to reach the ground.

Hope it helps...