# Projection (velocity, angle and duration) Calculator

## Calculates the initial velocity, angle and flight duration of the projection from the maximum height and travel distance.

Maximum height h
 m ft
Travel distance l
[ Gravity g
 m/s2 ]

Initial velocity v
=
Initial angle θ
 degree
Flight duration t
 sec
 $\normal Projection\\(1)\ v={\large\frac{v_y}{\sin\theta}}={\large\frac{\sqrt{2gh}}{\sin\theta}}\\(2)\ \theta=\tan^{\tiny -1}{\large\frac{v_y}{v_x}}= \tan^{\tiny -1}{\large\frac{4h}{l}}\\(3)\ t=2\sqrt{\large\frac{2h}{g}}\\$

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