Why must the worldline for a freely-falling body be straight?
Answers
Answered by
0
understanding currently is that the worldline for a freely falling object must also be similar to the worldline if it were in the middle of space where gravity is negligible. By 'similar' I mean that the free-fall word line must be straight and parallel to the worldline with 'no' gravity or must coincide with it. The worldline becomes 'similar' as a result of the curvature of spacetime which is caused by a mass (like the Earth) or energy.
Similar questions
Accountancy,
7 months ago