Elevator ERC - Identical springs of uniform spring constant is attached to 3 similar elevators. Case A spring attached to the elevator is pulled up at a constant speed, Case B spring attached to the elevator is moving down at constant speed and Case C spring attached to the elevator is held stationary. From the choices below in which of the case(s) (Case A. Case B, Case C) is the the elevator at equilibrium (Sum of forces equals zero)? To receive any point, Explain your choice in a ERC paragraph. Your explanation should include; Discussion on tension in each of the cable attached to Elevator, whether tension is going to be different or same for each case and facts from equilibrium fact sheet. ** Case A Case B Case C M- M. Wir Constant Speed Constant Speed Stationary (Not Moving)