il. Weighing an unknown object All of us have had the opportunity to be the "unknown weight" in the doctor's office. The scales traditionally used work much like the one we're working with. They just look different because there are some extra levers inside to allow it to balance your weight with the very small weights on the other side of the fulcrum. Click Reset All to make sure that the apparatus is in its default arrangement. Leave the support at the 50-em point I. Attach a clamp and hanger at a point somewhere to the left of the support stand. This is Hanger I. 2. The right-mool mass in your mass act will act as our unknown, We want to determine its weight. Using the selector below the unknown mass, select any number from 2-10. (A particular number may be assigned to you). Selected unknown mass number 3. Drop your unknown mass on Hanger I. 4. Attach a clamp and Hanger 2 somewhere to the right of the support stand. 5. You now want to bring the beam into belance. To do this you can adjust the position of either mass. You can also adjust the weight on Hanger 2. Clearly show your weight and lever arm data by adding information to Figure 5. The unknown weight doesn't include the clamp and hanger. ( You don't want your boots and backpack counted when you're weighed!) Show your calculations in the space below the beam in Figure 5. Record your value for the unknown weight in the space provided