An ideal spring with a spring constant 'K' is hung from the ceiling and a block of mass 'm' is attached to its lower end. The mass is released with spring initially unstretched. Then the maximum extension in the spring is

An ideal spring with a spring constant 'K' is hung from the ceiling an

1.	An ideal spring with a spring constant 'K' is hung from the ceiling and a block of mass 'm' is attached to its lower end. The mass is released with spring initially unstretched. Then the maximum extension in the spring is
Answer» `4 mg//K` `2mg//K` `mg//K` `mg//2K` ANSWER :B