Question: Classes of Levers Class 1 E Class 2 F Class 3 Assume you have a 2.5 m long piece of lumber (your lever), which

Classes of Levers Class 1 E Class 2 F Class 3 Assume

Classes of Levers Class 1 E Class 2 F Class 3 Assume you have a 2.5 m long piece of lumber (your "lever"), which has a mass of about 5.9 kg, with a CG in the middle. Also, assume you will always exert a force of 400N in the following problems. (Problems 6-11,5 points each) Remember to include the torque caused by the weight of the lever arm in your calculations or you will get a wrong answer. Also, a load is a force and is in newtons NOT kg. 1. What is the maximum weight you could lift (the "load") with a Class 1 lever if you exerted your force at the end of the lever, the fulcrum is in the middle of the lever, and load is at the other end of the lever (Class 1 lever)? Answer: 2. What is the maximum load you could lift with the above lever if you moved the fulcrum to 0.5 meters from the load end of the lever (still Class 1)? (Remember: the lever has its own mass.) Answer: 3. What is the maximum load you could lift with a class 2 lever if the load is in the middle of the lever and the fulcrum is at one end and you are lifting at the other end? (Last warning, include the weight of the lever itself!) Answer: 4. What is the maximum load you could lift with a Class 2 lever if the load 0.5 meters from the fulcrum? Answer: 5. What is the maximum load you could lift with a Class 3 lever if the load is at one end, the fulcrum is at the other end, and you lift in the middle? Answer: 6. What is the maximum load you could lift with a Class 3 lever if you lift 0.5 meters from the load end of the lever?

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