When you are moving up at a constant speed in an elevator, there are two forces acting on you: the floor pushing up on you (f1) and gravity pulling down (f2).

what's the relation of the magnitude of f1 and f2?

F₁ = F₂

Explanation:

Given that

floor pushing up on you  by force F₁

gravity pulling down by force F₂

From second law of Newton's

F₁ - F₂ = m a

But here given that ,elevator is moving with constant speed .It means that acceleration of the elevator is zero.

a= 0 m/s²

F₁ - F₂ = m  x 0

F₁ = F₂

a. is the answer because they are not shared