Question: I need help answering this problem below on Ground Reaction Force as well as a graph on greatest negative acceleration, greatest positive acceleration, and greatest

I need help answering this problem below on Ground Reaction Force as well as a graph on greatest negative acceleration, greatest positive acceleration, and greatest velocity from the graph below.

Summarizing: if GRFy = BW, then E F = 0 (no net force) and acg = 0 if GRFv > BW, then E F > 0 (net force upwards) and acg > 0 or positive if GRFy

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