Problem on Newton's laws:

An object is hung from a spring balance suspended from the roof of a lift. When the lift is descending with uniform acceleration of \(0.8ms^{-2}\) the balance indicates a weight of 245 N. When the lift is ascending with uniform acceleration \(ams^{-2}\)(to be found) the reading is 294 N.

Find the value of \(a\).

The answer is 1.04 \(ms^{-2}\), but can someone please show the method?

Guest Aug 18, 2021

edited by
Guest
Aug 18, 2021