A spring of force constant 800N/m has an extension of 5cm. The work done in extending it from 5cm to 15cm is

A spring of force constant 800N/m has an extension of 5cm. The work do

1.	A spring of force constant 800N/m has an extension of 5cm. The work done in extending it from 5cm to 15cm is
Answer» 16J 8J 32J 24J Answer :2