An object of mass 5 kg is attached to the hook of a spring balance and the balance is suspended vertically from the roof of a lift. The reading on the spring balance when the lift is going up with an acceleration of 0.25 ms−2 is take, (take, g=10ms⁻²) A 51.25 N B 48.75 N C 52.75 N D 47.25 N