Calculate the position of the reaction board’s COM using torques. Express as meters from the axis.
Calculate value for each torque in row 1, the full formula with all known values in row 2, and final for distance to COM in row 3.
Data collected:
Mass of reaction board = 28.3 kg
Length of reaction board = 2.43 m
Body mass = 84.4 kg
Body height = 1.8 m
Scale reading (board only) = 137 N
Scale reading (arms by sides) = 497 N
Scale reading (arms overhead) = 520 N
Weight of board = 277.34 N
Weight of person = 497 N