The discussion centers on the motion of Earth in the absence of the Sun's gravitational influence, exploring concepts related to Newton's laws of motion, particularly the implications of friction and gravitational forces in space. Participants examine the nature of linear motion and the factors that influence it, including the effects of other celestial bodies.
Participants express differing views on whether Earth would move in a straight line without the Sun's gravity, with some agreeing on the application of Newton's laws while others contest the implications of gravitational forces from other celestial bodies.
Limitations include the dependence on definitions of "straight line" and "constant velocity," as well as the unresolved implications of gravitational effects from other bodies in the solar system.
The momentum of the Earth would have to be conserved. The Earth's motion still wouldn't be perfectly straight though, as there are still gravitational effects due to the moon, and the other planets. The Earth would also still continue to orbit the galactic centre. 'Linear' would depend on your scale.avito009 said:If there was no Sun then the Earth would move in a straight line with constant velocity. This is because the space has vacuum and there is no friction in space. This is because if you observe on Earth where there is friction we need to apply force against this friction. But in space there is vacuum and no friction.
Am I right?
avito009 said:Am I right?