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Olympiad workbook

Exam: Olympiad workbook
Subject: NSEP
Chapter: Mechanical Properties of Fluids

Olympiad workbook · NSEP · Mechanical Properties of Fluids

A small ball bearing is released at the top of a long vertical...

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

t_1

and then the remaining height with the terminal velocity in time

t_2

. Let

W_1

and

W_2

be the work done against viscous drag over these heights. Therefore,

Options

A $t_1 < t_2$
B $t_1>t_2$
C $W_1=W_2$
D $W_1 < W_2$

Correct answer

D. $W_1 < W_2$

Step-by-step solution

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