Need help with a question (1 Viewer)

[trollface59]

Hi guys I would like to ask one question I'm not sure of:

Astronauts floating in the space station while it is orbiting Earth are said to be weightless. This is because

A) Their mass is zero
B) The gravitational force on them is zero
C) The gravitational force is balanced by the centrifugal force
D) Gravity is the only force acting on them

Thanks in advance.

 

[Green Yoda]

C