A lift of total mass M is raised by cables from rest through a height h . The greatest tension which the cables can safely bear is n Mg. The maximum speed of lift during journey if the ascent is to made shortest time is :

A lift of total mass M is raised by cables from rest through a height

1.	A lift of total mass M is raised by cables from rest through a height h . The greatest tension which the cables can safely bear is n Mg. The maximum speed of lift during journey if the ascent is to made shortest time is :
Answer» `SQRT(2gh((N+1)/n))` `sqrt(2ghn)` `sqrt(2gh((n)/(n+1))` `sqrt(2gh((n-1)/n))` ANSWER :D