# 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 mft Travel distance l [ Gravity g m/s2 ] 6digit10digit14digit18digit22digit26digit30digit34digit38digit42digit46digit50digit Initial velocity v = Initial angle θ degree Flight duration t sec
 $\normal Projection\\(1)\ v={\large\frac{v_y}{\sin\theta}}={\large\frac{\sqrt{2gh}}{\sin\theta}}\\(2)\ \theta=\tan^{\tiny -1}{\large\frac{v_y}{v_x}}= \tan^{\tiny -1}{\large\frac{4h}{l}}\\(3)\ t=2\sqrt{\large\frac{2h}{g}}\\$

Projection (velocity, angle and duration)
 [1-2] /2 Disp-Num5103050100200
[1]  2018/05/14 16:20   Male / 60 years old level or over / A teacher / A researcher / Very /
Purpose of use
Given an 8-foot ceiling, what''s the minimum launch speed (and associated launch angle) for a ball in tenpin bowling to traverse IN FLIGHT the 60-foot distance from the foul line to pin 1?
Comment/Request
It''s the ultimate loft ball. Is it possible? I''d say yes, it is.
[2]  2016/03/23 18:51   Female / 20 years old level / High-school/ University/ Grad student / Useful /
Purpose of use
Shooting bullets in a towerdefence game
Comment/Request
I would like some more explanation about the math

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