Question

An aircraft flying at an unknown initial velocity accelerates uniformly,at the rate of 5m/s².it reaches a velocity of 200m/s after accelerating over a distance of 3000 m. calculate the initial velocity of the aircraft

Answer 1

Answer

Initial velocity

$u=\sqrt{v^2-2as}\\=\sqrt{200^2-2*5*300}\\=\sqrt{40000-3000}\\=192.35m/sec$