Question: A spring, which is initially in its unstretched condition, is first stretched by a length𝑥 and then again by a further length 𝑥.The work done in the first case is w1, and in the second case is w2. Then
(A) W_{2}=W_{1}
(B) W_{2}=2W_{1}
(C) w_{2}=3w_{1}
(D) w_{2}=4w_{1}
Answer: Option (C)
Solution:
