Question: A spring has natural length 20 cm. Compare the work W1 done in stretching the spring from 20 cm to 30 cm with the work

A spring has natural length 20 cm. Compare the work W1 done in stretching the spring from 20 cm to 30 cm with the work W2 done in stretching it from 30 cm to 40 cm. How are W2 and W1 related?

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