Name: PHYS ( Date: [2] ASSIGNMENT 5: MEASURING PERSONAL PULLING POWER Aim To determine the average personal power in pulling an object a displacement of 2.5 m at constant speed along a lab desk surface while walking at a normal pace. Apparatus: loaded metal box, digital mass, spring balance, meter ruler [2] Diagram (Label the diagram, and show by means of an arrow the direction of the applied force. Also write a sub-title.) [4] Figure 1 [1] Results [10] (Please also insert unit symbols in table heading. The first is done for you) Initials Applied Displacement Work done Time Power force taken F/N d/m W/Nm t/s P/W FW 4.8N 2.5m 9.4s Average Calculation: Show clearly how you calculated your power, using your data. [6] Power = total work done total time taken Discussion [2] Describe one possible source of experimental error. Conclusion [2]