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A hollow spherical ball is let go from the top of a track and goes around a circular loop (R = 60 cm). 23. What must be the m
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ND my? wa - uz JRg By Energy conservation; yngh = 1 m Cup ² v12) g. 8 h = 10.689.8 h= o.3 m v=R JRg z 2.425 m/s

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