4. Test Procedure and Data CollectionFollowing steps indicates test procedure:1- Change the weight sets on two surrounding weights to desired values2- Change the weight set on central weight to desired value3- Hang the central weight set to desired location on beam (distance L3)4- Let the system come to stationary position5- Measure the angles ?1, ?2, and ?3 identified in below schematic figure using magnetic protractor6- Make a note from the weight F1, F2, F3, and W7- Measure the longitudinal location L3 of load F3 as a percentage of beam length L8- Enter your data in Table 1 to summarize the result of data collection step.

F1 F F3 e1 e L3 180g 100g 160g 30* 60*77* L3/2 W=41g F1 e L3 W e3 Figure 3: Free body diagram Error for force equilibrium in X direction = F3 5. Data Analysis Verify the equilibrium equations for forces in X and Y and moment in Z direction and calculate the errors by conducting following steps: a) Force equilibrium in X direction [Fx=0 Summation of force components to RHS= Summation of force components to LHS RRHS= Summation of force components to RHS = F2 Sin. 02 RLHS= Summation of force components to LHS = F Sin 01 Error for force equilibrium in X direction = RRHS-RLHS Max{RRHS RLHS} b) Force equilibrium in X direction >Fy=0 Summation of force components upward= Summation of force components downward BURWAR= Summation of force components upward = F Cos 01+ F Cos 02 Berwawak Summation of force components to downward = F3+W 49% Rupward-downward F Max{Rupward Rdownward} c) Moment equilibrium around left end of beam and about Z direction EM-0 Clockwise moment= Counterclockwise moment Mcw= Clockwise moment = F3 Sin 03 L3+ W.Sin 03.L/2 Error for moment equilibrium in Z direction = Mccw= Counterclockwise moment = F2 Sin(03-02) IMCW-McCwl Max (Mcw Mccw}