In Figure (a), a block of mass m lies on a horizontal frictionless surface and is attached to one end of a horizontal spring (spring constant k) whose other end is fixed. The block is initially at rest at the position where the spring is unstretched (x = 0) when a constant horizontal force vector F in the positive direction of the x axis is applied to it. A plot of the resulting kinetic energy of the block versus its position x is shown in Figure (b). The scale of the figure's vertical axis is set by Ks = 3.2 J and the scale of the figure's horizontal axis is set by xmax = 4.4 m.

Question

anonymous · Answer

I am really stuck on this. I got 0.5 for K, but I know that is not right. What am I doing wrong? I will really appreciate any help
Thanks!

anonymous · Answer

anyone?