A pilot stops a plane 484 m using a constant acceleration of -8.0 m/s^2. How fast was the plane moving before braking?

Answer 1

v² - v₀² = 2as;

We have: v = 0; a = - 8m/s²; s = 484m.

So, v₀ = √2·8m/s²·484m = 88 m/s