What is its speed at takeoff? How long must the runway be for the plane to be able to takeoff?

A plane starting at rest at one end of a runway undergoes a uniform acceleration of 4.8 m/s for 15 s before takeoff. What is its speed at takeoff? How long must the runway be for the plane to be able to takeoff?What is its speed at takeoff? How long must the runway be for the plane to be able to takeoff?v =a*t = 4.8m/s^2*15s = 72m/s



x = 1/2*a*t^2 = 1/2*4.8*15^2 = 540m