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A solid ball of density half that of wat...

A solid ball of density half that of water falls freely under gravity from a height of 19.6 m and then enters water. Upto what depth will the ball go? How much time will take to come again to the water surface? Neglect air resistance and viscosity effects in water `(g = 9.8 m//s^(2))`

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The correct Answer is:
[19.6 m and 4s]
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