What are these 2 physics equations for?
These are equations of constant acceleration that get used when you have an object that is accelerating at a constant rate (no acceleration, or constant velocity, is also a constant acceleration of 0m/s^2) The variables stand for: Vi = initial velocity Vf = final velocity a = acceleration Δx = distance moved Δt = change in time They’re for an object with an initial velocity and acceleration. After a certain amount of time, you can figure out how far it has moved and how fast it is going. However, things aren’t always that easy, so they have these different equations, usually along with Vf = Vi + a*Δt to figure things out. If you know Vf, Vi, and a, but not Δt, you can figure out how far an object has gone (Δx) using the second equation you mentioned. If you know Vf, Vi and a, but not Δx, you can use the equation I mentioned to figure out how long it took that object get from Vi to Vf. Basically, to use these equations, you simply look at what variables you know and what variable you ne
