Hard Mathematics-Physics Exercise

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The discussion focuses on solving a physics problem involving projectile motion by employing at least two different methods. The first method involves using the equations of motion under gravity, neglecting air resistance. The second method requires establishing the relationship between height and horizontal distance based on the curve's shape. Participants are encouraged to differentiate the resulting equation to find time, horizontal velocity, and acceleration due to gravity, ensuring both methods yield consistent results. A suggestion for a potential third approach is also mentioned.
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For the diagram overleaf solve the problems by at least two different methods.
Firstly use you knowledge of the equations of motion for motion under gravity
where air resistance is neglected.

Secondly, knowing the shape of the curve, find the relationship between height
and horizontal distance using the same datum as the question.
Once you have the equation for the curve the ball takes differentiate with respect
to t as appropriate and after some manipulation find the time taken, the
horizontal velocity and the acceleration due to gravity.
Of course check that both methods deliver the same result.

Can you think of a third approach?
 
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