1. Left-drag the block or the two ends of the incline to change their positions before the motion is started.
2. Right-drag to create a rectangle with dimensions shown. This rectangle is used for length measurements.
W: width; H: height; D: diagonal
3. The mass of the object is 1 kg. It rebounds elastically or stops at the lower end of the track.
4. The potential energy is zero at the ground level.
5. The static and kinetic coefficients of friction of all surfaces are assumed to be the same.