Question

derive an expression for potential energy stored in a system of a block attached to a mass less spring when the block is pulled from its equilibrium position​

Answer 1

• W= Fs ( f = force , s= displacement)
• W= mgs(F= ma and a is acceleration due to gravity)
• W = mgh ( s = height)
• W = Potential Energy
• Potential Energy =mgh

In pulling the block of lead the elastic potential energy is used