Problem: A 5 kg mass hangs from a rope wrapped around the surface of a cylindrical pulley. The pulley has a mass of 20 kg and a radius of 0.8 m. If the 5 kg mass is suddenly released, falling down, what speed will it have after it has fallen 3.2 m?

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A 5 kg mass hangs from a rope wrapped around the surface of a cylindrical pulley. The pulley has a mass of 20 kg and a radius of 0.8 m. If the 5 kg mass is suddenly released, falling down, what speed will it have after it has fallen 3.2 m?

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What scientific concept do you need to know in order to solve this problem?

Our tutors have indicated that to solve this problem you will need to apply the Conservation of Energy with Rotation concept. You can view video lessons to learn Conservation of Energy with Rotation Or if you need more Conservation of Energy with Rotation practice, you can also practice Conservation of Energy with Rotation practice problems .