Question:
A frictionless track consists of a horizontal part of
Last updated: 6/25/2023
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A frictionless track consists of a horizontal part of unknown length which connects to a vertical semicircle of radius r as shown An object which is given an initial velocity is to move along the track in such a way that after leaving the semicircle at the top it is to fall back to its initial position What should the minimum length of the horizontal part be