A spring needs a force of to produce an extension of

PHYSICS · Multi-part · CBSE · Physics · Mechanical Properties of Solids · Mechanical Properties of Solids

Problem

A spring needs a force of

2\,\text{N}

to produce an extension of

1\,\text{cm}

. The spring obeys Hooke’s law. (i) Calculate the spring constant of the spring. (ii) Find the energy stored in the spring when it is stretched by

5\,\text{cm}

from its natural length.