an aeroplane taxis onto the runway going at 10m/s if it can accelerate steadly at 3m/s^2 & its take off spead is 90m/s what length of runway will it need?

Answer 1

find the time: v = v0 + at, so 10+3t = 90
Use that time for the distance: s = 10t + 3/2 t^2