What will happen to objects moving at a speed close to the speed of light in different directions?

Question

Physics

We have objects moving at a speed of more than half the speed of light relative to us in different directions, since we are standing in the middle, we can observe these two objects since their speed relative to us is less than the speed of light. But will objects be able to observe each other? because they move in different directions with a total speed greater than the speed of light.

Answer 1

In fact, the following fundamental principle will come into play - the speed of light in vacuum is constant in all frames of reference. This is an empirical fact. This is due to the geometry of space-time - the world is four-dimensional (although the time coordinate differs from the spatial ones). There is no other way to explain this effect. Google the Minkowski metric

Answer 2

In the theory of relativity, the rule of simple addition of velocities, to which we are accustomed, does not work. There is a more complex formula. And it is such that the mutual speed of two such objects will always be less than the speed of light. Why so - study the basics of the theory of relativity. This cannot be explained in two sentences.