A valley has two walls inclined at `37°` and `53°` to the horizontal. A particle is projected from point P with a velocity of `u = 20 m//s` along a direction perpendicular to the incline wall OA. The Particle hits the incline surface RB perpendicularly at Q. Take `g = 10 m//s^(2)` and find:
(a) The time of flight of the particle.
(b) Vertical height h of the point P from horizontal surface OR.
`[tan 37^(@) = (3)/(4)]`

Answer

(a) `2.5 s` (b) `4.05 m`