thank you for your response.nThe brace weighs 615.5g. Should I turn on the Gravity option in Mechanical?n We recorded the angle during the experiment and the graph shown is the force resolved in the x-axis. nTo obtain the displacement, we measure the initial opening of the brace and measured the same opening once loaded. The difference is then taken to obtain the actual displacement, so yes it is the direct measurement of the distance between the edges of the brace:nThe experimental data does not start at (0,0) because we were using a pulley and a weight holder. Hence it starts from the weight holder's mass:nI hope this helps to clarify the experiment further (:n