A ball is moving to and fro about the lowest point $A$ of a smooth hemispherical bowl. If it is able to rise up to a height of $20\ cm$ on either side of $A$, its speed at $A$ must be $(Take\ g = 10\ m/s^{2},\ $massof the body$\ 5\ g)$

Question

Dr. Abubacker · Accepted Answer

(b) $v = \sqrt{2gh} = \sqrt{2 	imes 10 	imes 0.2} = 2\ m/s$

Q. A ball is moving to and fro about the lowest point $A$ of a smooth hemispherical bowl. If it is able to rise up to a height of $20\ cm$ on either side of $A$, its speed at $A$ must be $(Take\ g = 10\ m/s^{2},\ $massof the body$\ 5\ g)$

Explanation

Reviewed by Dr. Abubacker

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