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

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:

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
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