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  • A ball of relative density 0.8 falls into water from a height of The depth to which the ba

A ball of relative density 0.8 falls into water from a height of 2 \mathrm{~m}.The depth to which the ball will sink is (neglect viscous forces) :

Option: 1

8m


Option: 2

2m


Option: 3

6m


Option: 4

4m


Answers (1)

best_answer

\mathrm{\begin{aligned} & \mathrm{mg}(\mathrm{x}+2)=\mathrm{v} \times 1 \times \mathrm{g} \times \mathrm{x} \\ & \mathrm{v} 0.8 \mathrm{~g}(\mathrm{x}+2)=\mathrm{v} \times 1 \times \mathrm{g} \times \mathrm{x} \\ & 0.8 \mathrm{x}+1.6=\mathrm{x} \\ & 0.2 \mathrm{x}=1.6 \\ & \mathrm{x}=8 \end{aligned}}

Posted by

himanshu.meshram

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