A lift is freely falling from 8^(th) floor and is just about to stop at 4^(th) floor. Taking ground floor as origin and positive direction upwards for displacement, velocity, acceleration. Which one of the following is correct?

A lift is freely falling from 8^(th) floor and is just about to stop a

1.	A lift is freely falling from 8^(th) floor and is just about to stop at 4^(th) floor. Taking ground floor as origin and positive direction upwards for displacement, velocity, acceleration. Which one of the following is correct?
Answer» `XLT0, vlt0, AGT0` `XGT0,vlt0,alt0` `xgt0,vlt0,agt0` `xgt0,vgt0,alt0` ANSWER :A