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Olympiad workbookNSEPMechanical Properties of Fluids

A small ball bearing is released at the top of a long vertical column of glycerin of height 2 h . The ball bearing falls through a height h in a time t₁ and then the remaining height with the terminal velocity in time t₂ . Let W₁ and W₂ be the work done against viscous drag over these heights. Therefore,

Options

At₁ < t₂
Bt₁>t₂
CW₁=W₂
DW₁ < W₂

Correct answer

D. W₁ < W₂

Step-by-step solution

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