A spring of force constant 10N / m has an initial stretch 0.20 m . In changing the stretch to 0.25 m , the increase in potential energy is about

Two springs of force constants 1000N//m and 2000N//m are stretched by same force. The ratio of their respective potential enegries is

Two springs of force constant 1000 N/m and 2000 N/m are stretched by same force. The ratio of their respective potential energies is

When a mass M is attached to the spring of force constant k , then the spring stretches by . If the mass oscillates with amplitude l , what will be maximum potential energy stored in the spring

A long spring when stretched by x cm , has a potential energy U . On increasing the stretching to nx cm, the potential energy stored in spring will be

A long spring when stretched by x cm , has a potential energy U . On increasing the stretching to nx cm, the potential energy stored in spring will be

A spring of force constant 4000N/m when stretched by 8 cm, the potential energy stored in it will be?