Report on Laboratory Experiment "Rotational Equilibrium"
Part III: Optional experiment.
Put an additional clamp and hanger in the stick and hang 50 g and 100 g masses as shown below (Figure 4). Your experimental task is to hang a third mass from the empty hanger and bring the stick to equilibrium. You have to pick yourself the position of the third clamp and the mass to hang from it.
Figure 4. A meter stick will become balanced when the counter-clockwise torque is equal to the total clockwise torque.
Third mass value m3 (kg): 0.020 ; Third lever arm value d3 (m): 0.144
Write below the condition of rotational equilibrium in this case:
Calculate the counter-clockwise torque and the total clockwise torque below. Show your work.
tccw :
tcw :
QUESTION: Do you consider that the condition of rotational equilibrium is valid in this case? Justify your answer.