Two springs P and Q both obey Hooke’s law.
They have spring constants 2k and k respectively. The springs are stretched, separately, by a force that is gradually increased from zero up to a certain maximum value, the same for each spring. The work done in stretching spring P is $W_P$, and the work done in stretching spring Q is $W_Q$.
How is $W_P$ related to $W_Q$?
1 )
$W_P = \frac{1}{4}W_Q$
$W_P = \frac{1}{2}W_Q$
3 )
$W_P=2W_Q$
4 )
$W_P=4W_Q$
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