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?
