Part 2: Determine the COM of a person using the reaction board technique.Instruments: reaction board, scaleEquations: ST = 0 = F * d ST = 0 = (RF1 * d) + (RF2 * l) - (Wtp * COM) - (Wtb * l)Methods (SHOW WORK FOR ALL CALCULATIONS)? To determine the location of the COM of a person using the reaction board technique requires completing two stepso Step 1:? Draw a free body diagram of the reaction board in the space below. Think about the forces being applied, point of force application, direction of force.Determine the torque due to the reaction board.? With nothing on the reaction board, read the scale. This is the magnitude of force. (RF2, )? Measure the length of the reaction board between the two supports This is the moment arm, the perpendicular distance from axis of rotation to the force application.? Calculate the torque due to this force. (T RF2)? Calculate the torque due to the board (T board) o Step 2:? Draw a free body diagram of the person lying on the reaction board below. Think about the forces being applied, point of force application, direction of force.Determine the location of the COM of the person? Measure how much the person weighs.? Have the person lie on their back with the bottom of their feet lined up with the axis of rotation (i.e., right above the support)? Measure the reading on the scale (Fscale)? Knowing the torque of the board (Step 1), the torque due to the scale, and the weight of the person, you can solve for the location of the COM from the axis of rotation. Step 1: Determine T scaleStep 2: Determine the location of the COM1. ?T = F * d^2. ?T = 0Nm3. T RF2 + (- T board) = 0Nm4. T RF2= T boardThe torque due to the RF2 itself is the same magnitude as the torque due to the board itself. 1. ?T = F * d^2. ?T = 0Nm3. TRF2 + Tboard + T person = 0Nm? Tperson = (Wt person * d^person)4. (Wtperson * d^person) = TRF2 - Tboard5. d^person = (TRF2- Tboard) / Wt person

Part 2: Determine the COM of a person using the reaction board technique. 1. Draw a free body diagram of the reaction board in the space below. Think about the forces being applied, point of force application, direction of force. 2. Determine the torque due to the reaction board. Show all work. 3. Draw a free body diagram of the person lying on the reaction board below. Think about the forces being applied, point of force application, direction of force. 4. Determine the location of the COM of the person. Show all work. 5. Record our results in the table below. Length of the beard (between the two force platforms scale scale person scale _person sca|e_person E M M E H5011