Purpose: To quantitatively study about center of mass, torque and mechanical equilibrium. Concepts: Write an equation to express the torque on an object of mass m placed l meters from the fulcrum of a seesaw:

torque= Write an equation to express the mechanical equilibrium of two objects of mass m and M placed at l and L meters respectively from the fulcrum of a seesaw:

Purpose: To quantitatively study about center of mass, torque and mechanical equilibrium. Concepts; Write an equation to express the torque on an object of mass m placed / meters from the fulcrum of a seesaw: Torque = Write an equation to express the mechanical equilibrium of two objects of mass m and M placed at I and L meters respectively from the fulcrum of a seesaw: Procedure: For each of the parts (tabs) below, be sure to click on the Mass Labels, Forces from Objects, and Level. Also click on Ruler. TAB 1 "Intro": Apply the concepts of center of mass, torque and mechanical equilibrium to achieve perfect mechanical equilibrium for the following situations (note: the "Level" arrows become green when the seesaw is perfectly balanced), then record the position of each object. 1. One fire extinguisher on the left and the trashcan on the right. 2. Two fire extinguishers on the left and the trashcan on the right. 3. One fire extinguisher and the trash can on the left and a fire extinguisher on the right. TAB 2 "Balance lab": Apply the concepts of center of mass, torque and mechanical equilibrium to identify the mass of all the Mystery Objects. Record the positions of all objects used. MA = Positions of objects used: MB KP Positions of objects used: MF = KR Positions of objects used: MH = Positions of objects used