tational Sta .Walk The Plank" Activity: Consider a wooden plank set so that part of its length hangs over the edge of a building as shown. If a person walks out onto the axis of rotation ank, the plank may tip over and the person will fall. You will model this situation using a meterstick in place of the plank, and a mass in place of the person. 100 cmi 0 cm Mass of the "Plank": Mass of the "Person": Pivot point of the "Plank": m (a) On the diagram, draw the forces acting on the plank for the instant when the plank barely begins to tip over. Also label the plank's axis of rotation. (b) Write a balanced-torques equation for the instant that the plank barely begins to tip over. Your equation should include a variable that represents where the person is when the plank begins to tip. (c) Solve your equation to find the location where the person should stand in order to begin to tip over the plank. Test your prediction with the given meterstick and mass