A lift of mass 100 kg starts moving from rests in the upward direction. Fig. shows the variation if speed of the lift `T_(1), T_(2)` and `T_(3)` stand for tension in the rope form zero to two seconds, two to six seconds, six to seven seconds respectively then :-

Options

A. `T_(1) : T_(2) : T_(3) :: 1 : 1 : 1`
B. `T_(1) : T_(2) : T_(3) :: 6 : 5 : 3`
C. `T_(1) : T_(2) : T_(3) :: 3 : 5 : 6`
D. `T_(1) : T_(2) : T_(3) :: 6 : 5 : 6`

Answer

B