A Uniform Beam 1 M in Length Is Supported at Its

question 104

Multiple Choice

A uniform beam 1 m in length is supported at its center by a fulcrum. A mass of 20kg is placed at the left end, a mass of 8kg is placed on the beam 10 m from the left end, and a third mass is placed 4 m from the right end. What mass should the third mass be to achieve equilibrium?

• A) 28kg
• B) 36kg
• C) 16kg
• D) 20kg
• E) 10kg

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