Concept explainers
To find: Theequation of the parabola that models the flight of the football.
Answer to Problem 28SGR
The equation of parabola is
Explanation of Solution
Given information:
A football is thrown from ground level. It reaches a maximum height of
Calculation:
A football is thrown from ground level. It reaches a maximum height of
The parabola is of the form
The horizontal distance from point O to point A will be half of the distance of OB. So,
Hence the co-ordinates of vertex A will be
Substitute
Parabola passes through point B. Co-ordinates of point Bare
Substitute
Therefore, the equation of parabola is
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