Question

A plane take off making an angle 30° with horizontal.if vertical Component of its velocity is 80km/h then velocity is.?

Answer 1

Answer:

Velocity is 160 km/h

Explanation:

let  ' v ' be the velocity of the plane

then its components are given by

horizontal component = v cos θ

vertical component = v sin θ

given :

θ = 30°

vertical component = 80 km/h

v sinθ = 80

v sin 30° = 80

v / 2 = 80

v = 160 km/h

hence its velocity = 160 km/h

Hope it helps !