Question

An airplane flying at 120 km/h due west moves into a region where the wind is blowing at 40 km/h due east of the plains original vector velocity is very plain, what is the expression for the plains resulting velocity in terms of the plane?

Answer 1

Velocity of plane is given as

`v_p = 120 km/h` towards west

velocity of wind is given as

`v_w = 40 km/h` towards east

now the net velocity of the plane will be given as

`\vec v_(net) = \vec v_p + \vec v_w`

`\vec v_(net) = 120 - 40`

`\vec v_(net) = 80 km/h` towards west

so the net velocity of plane will be 80 km/h towards west