Overview
have one physics homework and stuck on this one question...It's the chapter from (Force, Hooke's Law, Newton's Laws/Conservation of Energy)
This is the question...
16) An object with a mass 0.285kg is attached to a vertical spring with a force constant of 3.75N/m. From the spring's unstretched position, a student pushes the mass downward with a speedof 1.50m/s. Neglect the mass of the spring and its kinetic energy. What is the speed of the object when it has fallen 0.120m from where it was pushed by the student?