Show that a projectile fired at an angle 0 with the horizontal crosses a certain height at two timings t_(1) and t_(2) and the sum of these two is equal to :

Show that a projectile fired at an angle 0 with the horizontal crosses

1.	Show that a projectile fired at an angle 0 with the horizontal crosses a certain height at two timings t_(1) and t_(2) and the sum of these two is equal to :
Answer» TOTAL TIME of flight `1/4`th of the total of flight Any fraction of time of fligh Half of the total time of flight. Solution :The equation for trajectory is `y = u sin theta t -1/2 G t^(2)` . Solve QUADRATIC and find sum of roots which comes out equal to total time of flight.

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Show that a projectile fired at an angle 0 with the horizontal crosses a certain height at two timings t_(1) and t_(2) and the sum of these two is equal to :

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