A small ball bearing is released at the top of a long vertical column of glycerine of height `2h`.
Channel: Doubtnut
Date: 12/04/2020

A small ball bearing is released at the top of a long vertical column of glycerine of height `2h`. The bal bearing  falls thorugh a height `h` in a time `t_(1)` and then the reamining height with the terminal velocity in time `t_(2)`. Let `W_(1)` and `W_(2)` be the done against viscous drag over these height. Therefore,