Imagine you have two chords attached to a softball holder. The spring constant is 300, measured when the chords were 10 cm apart. Now if the distance between the unattached ends were increased, does the spring constant change? Also, say the distance between the chords are increased, the holder is pulled back and down (3-D)how will I measure the "x" value for the equation E= 1/2 kx^2? Thank-you for your time.