AP EAMCET Medical 23 Apr 2019 Shift 2 Paper

A block of mass 1 kg tied to a long spring of spring constant 100 Nm−1 is at rest on a horizontal frictionless surface. The block is pulled through a distance 5 cm horn its equilibrium position and released. Then the total energy of the block when it is at a distance 4 cm from the equilibrium position is