1. If Box A weighs 20 pounds and sits 13 inches left of the fulcrum and Box B weighs 10 pounds and sits 11 inches left of the fulcrum, how much must Box C weigh if it sits10inches to the right of the fulcrumto balance the lever?

2. How far from the fulcrum would a force of 209pounds need to be applied to lift a box weighing 46pounds resting 47inches from the fulcrum of a 3rd class lever?

calculate your answer to one decimal place

3. How far left of the fulcrum must Box A sit to balance the leverif it weighs 7pounds& Box B weighs 15 pounds and sits 14 inches left of the fulcrum and Box C weighs 13 pounds and sits 22 inches right of the fulcrum?

4. How much force would need to be applied 11inches from the fulcrum to lift a box weighing 49pounds resting 25inches from the fulcrum of a 3rd class lever?

5. How much force would be required to lift a box weighing 235 pounds sitting 11 inches from the fulcrum if the force was applied 26 inches from the fulcrum of a 2^nd class lever?

6. If Box A weighs 25.7pounds and sits 16.4inches left of the fulcrum,how far right of the fulcrum must Box B sit to balance the lever if Box B weighs 74pounds?

7. How far from the fulcrum would a force of 41 pounds need to be applied to lift a box weighing 108 pounds sitting 13 inches from the fulcrum of a 2^nd class lever?

8. If Box A weighs 98.6 pounds and sits 54.6 inches left of the fulcrum, how much must Box B weigh if it sits 26 inches right of the fulcrum to balance the lever?

9. How much must Box A weigh to balance the leverif it sits 10 inches left of the fulcrum & Box B weighs 7 pounds and sits 7 inches left of the fulcrum and Box C weighs 20 pounds and sits 12 inches right of the fulcrum?

10. If Box A weighs 5.8 pounds and sits 9 inches left of the fulcrum and Box B weighs 5.4 pounds and sits 17 left of the fulcrum, how far to the right of the fulcrum must Box C sit if it weighs 10 poundsin order to balance the lever?