A mass is hung from a vertical spring with force constant

PHYSICS · Subjective · CBSE · Physics · Work, Energy and Power · Work, Energy and Power

Problem

0.20\,\text{kg}

mass is hung from a vertical spring with force constant

18\,\text{N}\!/\!\text{m}

. The spring is at its natural (unstretched) length when the mass is released from rest. Determine the speed of the mass after it has descended

0.20\,\text{m}

. Ignore air resistance.