I need help with this problem.

2). Rapid stand. Draw the graph of GRFV against time for a rapid movement upward to a fully erect standing position from a static squatting position (plot this electronically in the space below). Again, explain the different portions of the graph in terms of vertical speed and acceleration, just as you did for the rapid squat. So, label each portion of the graph as before; that is, the portion above BW, below BW, and when it is equal to BW