college physics

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an airplane starts from rest and accelerates at a constant 3.00m/s2 for 30.0s before leaving the ground.
a). how far did it move?
b). how fast was the airplane going when it took off?

• college physics -

a. d = 0.5a*t^2.
d = 0.5*3*30^2 = 1350 m.

b. V = a*t = 3 * 30 = 90 m/s.

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