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VITEEE 2023 Solved Paper

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Question : 28

Total: 125

A ball of radius r and density ρ falls freely under gravity through a distance h before entering water. Velocity of ball does not change even on entering water. If viscosity of water is η the value of h is given by

‌
2
9
r2(‌
1−ρ
η
)g
‌
2
81
r2(‌
ρ−1
η
)g
‌
2
81
r4(‌
ρ−1
η
)2g
‌
2
9
r4(‌
ρ−1
η
)2g

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