An astronaut floats inside an orbiting space station. Which of the following are true?

A. No forces act on the astronaut.
B. The astronaut has no mass.
C. The astronaut experiences no gravitational force from the planet

Question

An astronaut floats inside an orbiting space station. Which of the following are true?
 
A. No forces act on the astronaut. 
B. The astronaut has no mass. 
C. The astronaut experiences no gravitational force from the planet

anonymous · Answer

None of them are true.

anonymous · Answer

how do you know

anonymous · Answer

C is false, there for A is false.  B is right out.

anonymous · Answer

Ya B can't be it because everything has mass.

anonymous · Answer

If the planet didn't pull on the astronaut, he wouldn't orbit.  He'd fly away.

anonymous · Answer

Thus C and A can't be true.  He has to have mass to even experience force, so B can't be true.