# Projection from elevation (velocity, angle, duration) Calculator

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

 Initial height becomes negative if it is lower than landing point which is zero meter.

 Maximum height h mft Travel distance l Initial height h0 [ Gravity g m/s2 ] Initial velocity vs = Initial angle θs degree Flight duration t sec Landing velocity ve = Landing angle θe degree
 $\normal Projection\ from\ elevation\\\vspace{5}\\(1)\ t={\large \frac{\sqrt{2g(h-h_0)}+\sqrt{2gh}}{g}}\\(2)\ v_s=\sqrt{({\large\frac{l}{t})^2}+2g(h-h_0)}\\\hspace{25}\theta_s=\tan^{\tiny -1}\left({\large\frac{t\sqrt{2g(h-h_0)}}{l}}\right)\\(3)\ v_e=\sqrt{({\large\frac{l}{t}})^2+2gh}\\\hspace{25}\theta_e=\tan^{\tiny -1}\left({\large\frac{t\sqrt{2gh}}{l}}\right)$

Projection from elevation (velocity, angle, duration)
 [1-2] /2 Disp-Num5103050100200
[1]  2019/01/29 00:22   - / - / - / - /
Purpose of use
For research paper writing
Comment/Request
drop energy calculation
Iam dropping 10kg weight from 0.65m height on the sample it under gone reaction by giving flash here i want to calculate energy
[2]  2018/05/17 08:18   Male / 60 years old level or over / A teacher / A researcher / A little /
Purpose of use
Shooting out of a 32nd-floor window.
Comment/Request
Needs to support negative angles to -90 degrees.

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