Gutek8134

Ohhh, right, the ground will apply the upwards-sideways reaction force

Are we assuming repeatedly hitting the stairs?

I've always considered vertical and horizontal movement separately, so I thought I'd have to add even more to the approximated traveled road, not decrease it.

These stairs look so steep I deem it a good enough approximation, given I've already rounded g to 10

If you ignore air resistance, that's about 320 meters, from s=at^2^/2, a=g=10, t=8