Which of the following is the correct expression for the elastic potential energy…

PHYSICS · Single correct · A Level · Physics · Mechanics and materials · Mechanics and materials

Problem

Which of the following is the correct expression for the elastic potential energy

E

stored in a spring of spring constant

k

when it is elongated by

x

? (a)

E = kx^{2}

(b)

E = \frac{1}{2}kx^{2}

(c)

E = \frac{1}{4}kx^{2}

(d)

E = \frac{1}{3}kx^{2}