20-12-2016
Physics

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ingrid kicks a football with an initial velocity at 12 m/s at an angle of 45 relative to the ground

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20-12-2016

Equation of movement is

y(x) = x * tg (a) - [tex] \frac{g}{2 * u^{2} * cos (a)^{2} } * x^{2} [/tex]

where y is y-coordinate, x - x coordinate, u - your initial speed, a = angle above horizon.

differentiate it to get dy/dx (speed)

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