Projectile Motion

Equation of motion of Projectile:
y = xtanθ - $ gx^2 # _2u^2cos^2θ

Note: Equation of the Projectile motion is Similar to the Equation of parabola, y=ax-bx² where a=tanθ and b = $g # _2u^2cos^2θ

Maximum Height Attained by a Projectile:
H = $2uSinθ # _g

Range or Displacement of Projectile:
R = $ u^2Sin2θ # _g

For given angles θ~^1 and θ~^2 , if θ~^1+θ~^2 = 90° then R~^1 = R~^2