# A spring with spring constant k is extended from 𝑥 = 0 to 𝑥 = 𝑥1.The work done will be

Question: A spring with spring constant k is extended from 𝑥 = 0 to 𝑥 = 𝑥1.The work done will be

(A) $kx_{1}^{2}$

(B) $\dfrac{1}{2}kx_{1}^{2}$

(C) 2 $kx_{1}^{2}$

(D) 2 $kx_{1}$