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,

A spherical steel ball released at the top of along column of glycerin of length l falls through a distance l//2 with accelerated motion and the remaining distance l//2 with uniform velocity let t_(1) and t_(2) denote the times taken to cover the first and second half and w_(1) and w_(2) are the work done against gravity in the two halves, then compare times and work done.

A spherical steel ball released at the top of along column of glycerin of length l falls through a distance l//2 with accelerated motion and the remaining distance l//2 with uniform velocity let t_(1) and t_(2) denote the times taken to cover the first and second half and w_(1) and w_(2) are the work done against gravity in the two halves, then compare times and work done.

A particle is released from rest from a tower of height 3h. The ratio of time intervals for fall of equal height h i.e. t_(1):t_(2):t_(3) is :

A particle is released from rest from a tower of height 3h. The ratio of time intervals for fall of equal height h i.e. t_(1):t_(2):t_(3) is :

A particle is released from rest from a tower of height 3h. The ratio of time intervals for fall of equal height h i.e. t_(1):t_(2):t_(3) is :