A stationary person observes that rain is falling vertically down at 30 kmh − 1 . A cyclist is moving up on an inclined plane making an angle 3 0 ∘ with horizontal at 10 kmh − 1 . In which direction s

Question

A stationary person observes that rain is falling vertically down at 30 kmh − 1 . A cyclist is moving up on an inclined plane making an angle 3 0 ∘ with horizontal at 10 kmh − 1 . In which direction should the cyclist hold his umbrella to prevent himself from the rain?

TestHub · Accepted Answer

Horizontal = 5 3 ​ Vertical = 30 + 5 = 35 tan θ = 35 5 3 ​ ​ = 7 3 ​ ​ At an angle tan − 1 ( 7 3 ​ ​ ) with the vertical → (D) Angle with inclined plane: tan ϕ = 5 3 3 ​ ​ → (A)

Physics - Kinematics Question with Solution | TestHub

Options:(select one or more)

Doubts & Discussion