3. An astronaut drops a hammer and a feather from the same height on a planet without air. How will their falls compare?
The objects will fall at the same time because gravity will have the same affect on them.
• The feather will fall faster because it has less mass, allowing it to speed up more easily than the hammer.
• The hammer will fall faster because gravity is pulling it down with a greater force than it is pulling the feather.
The objects will fall at the same time because gravity is not acting on them, so they will be affected the same.