Elevator Problem

An elevator begins from rest at the first floor of a building. It starts a journey to the fifth floor by moving an acceleration of 1.5 m/s^2 for 3 seconds; thereafter it moves with a constant velocity until it gets near to its stopping point. Then it will stat slowing down at 1 m/s^2 until it reached the 5th floor and stops. Find the apparent weight of a person of mass m who is travelling in the elevator at different times during the motion assuming the person reads 60 kg on a scale.