# Answer on Mechanics | Relativity Question for Bhupandra Biswa

Question #15526

Calculate the resultant velocity of an airplane that normally flies at 20 km/h if it encounters a 50-km/h tailwind. If it encounters a 50-km/h headwind

Expert's answer

If it encounters a 50-km/h tailwind, Vr = Va + Vw = 20 + 50 = 70 km/h

If it

encounters a 50-km/h headwind, Vr = Va - Vw = 20 - 50 = - 30 km/h

If it

encounters a 50-km/h headwind, Vr = Va - Vw = 20 - 50 = - 30 km/h

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