A man stands on a spring scale on an elevator. In which case, will the scale record the minimum reading and the maximum reading: (i) elevator stationary (ii) elevator cable brakes, free fall (iii) elevator accelerating upward and (iv) elevator accelerating downward.

A man of mass 98 kg, is standing on a weighing machine in a lift. What will be the readings of the weighing machine in the following cases: (i) the lift ascends at 100 cm per second. (ii) The lift descends with an acceleration of 30 cm cdot s^(-2) ? [ g = 980 cm cdot s^(-2) ]