Why is it that when large structures fall, they appear to do so in “slow motion”?

Question

Like if I knock over a toy car, it seems to happen quickly, but a large building collapsing seems to happen “slower”?

In: Physics

Answer 1

It takes 1 second for the top of a 32 foot building to hit the ground under gravity, 3.16 seconds for a 320 foot high tower. Assume that you are standing 10 times further away so the perspective makes them both appear at the same vertical angle of view to you, then as they collapse that angle changes more slowly for the taller, more distant building.