- #1

gionole

- 281

- 24

It's known that in inertial frame, space is isotropic. (statement of this where I have taken out of is attached as image)

When we talk about an uniform accelerated train, ground frame is considered as inertial frame(at least in newtonian mechanics). So if ground frame is considered such as inertial, then if we bring an example of dropping a ball, space should be isotropic, but we know that it's not(due to ##mgy##). So I end up in a contradiction.

Where am I making a mistake ? is it that I'm wrong that ground frame can never be considered inertial or what exactly ?

When we talk about an uniform accelerated train, ground frame is considered as inertial frame(at least in newtonian mechanics). So if ground frame is considered such as inertial, then if we bring an example of dropping a ball, space should be isotropic, but we know that it's not(due to ##mgy##). So I end up in a contradiction.

Where am I making a mistake ? is it that I'm wrong that ground frame can never be considered inertial or what exactly ?