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PHYSICS

JAMB 2009 - Question 3

Physics 2009 JAMB Past Questions - Question 3: An aircraft attempts to fly due north at 100 kmh-¹if the wind blows against it from east to west at 60 kmh-¹, its resultant velocity is

Choose the correct answers from the options given.

An aircraft attempts to fly due north at 100 kmh-¹if the wind blows against it from east to west at 60 kmh-¹, its resultant velocity is

A: 117kmh-¹, N31°E

B: 127lmh-¹, N31°E

C: 117kmh-¹, N31°W

D: 127kmh-¹, N31°W

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Correct Answer

Explanation

R2=100^2+60^2

10000+3600 = 13600
R = √ 13600
= 117km
60km & 100km = tanθ = 60/100

tan−1 0.6
= 31º west of the North
117km N31ºw