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What is the moment of inertia (I) for a rectangular beam section with width (b)

Practice Questions

Q1
What is the moment of inertia (I) for a rectangular beam section with width (b) and height (h)?
  1. (b * h^3) / 12
  2. (b * h^2) / 12
  3. (b * h^3) / 3
  4. (b * h) / 12

Questions & Step-by-Step Solutions

What is the moment of inertia (I) for a rectangular beam section with width (b) and height (h)?
  • Step 1: Understand that the moment of inertia (I) is a measure of how a beam resists bending.
  • Step 2: Identify the dimensions of the rectangular beam: width (b) and height (h).
  • Step 3: Recognize that the formula for the moment of inertia for a rectangular section is I = (b * h^3) / 12.
  • Step 4: In the formula, b is multiplied by the height (h) raised to the power of 3 (h^3).
  • Step 5: Divide the result by 12 to get the moment of inertia (I).
  • Step 6: Use the formula with your specific values of b and h to calculate I.
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