A Hooke's Law Spring Is Mounted Horizontally Over a Frictionless

Multiple Choice

A Hooke's law spring is mounted horizontally over a frictionless surface.The spring is then compressed a distance d and is used to launch a mass m along the frictionless surface.What compression of the spring would result in the mass attaining double the kinetic energy received in the above situation?

A) 1.41d
B) 1.73d
C) 2.00d
D) 4.00d