Re: HSC Physics - Exam Paper (download)
Fizzy for question 19 wouldnt it be C as same gravity means its in the same orbit ?
Forces would be different as force depends on mass. Surely the astronauts mass is not equal to the mass of the spacecraft!
if they experienced the same force, they would experience significantly different accelerations.
If that had said 'acceleration due to gravity..' then that would be true.
To me 19 came by process of elimination :\
it is not A (force due to gravity would still be significant as it is the force which is causing the orbit in the first place), not C as the force due to gravity depends on mass, not D as that implies that the accelerations would be different due to the different masses (takes Force as being constant), B is left over. As shit as the answer is, it is B.