Physics
posted by Corey Brown .
An airplane requires 420 m of runway to take off from an airstrip. If the plane starts from rest and it takes 32 s to lift off, with what velocity does it leave the ground? What was the average acceleration of the plane?

d = .5 a t^2
840 = a(1024)
a = .820 m/s^2
v = a t = .820 * 32 = 26.2 m/s
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