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 WP, and the work done in stretching spring Q is WQ.
How is WP related to WQ?
1 )
WP=14WQ
WP=12WQ
3 )
WP=2WQ
4 )
WP=4WQ
