Young's Modulus Wire Experiment

A 3 m long wire of radius 3 mm shows an extension of 0.1 mm when loaded vertically by a mass of 50 kg in an experiment to determine Young's modulus. The value of Young's modulus of the wire as per this experiment is P × 10¹¹ Nm^–2, where the value of P is : (Take g = 3π m/s²)