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When analyzing a beam, what sign convention is used for shear forces?

23. When analyzing a beam, what sign convention is used for shear forces?

1. Positive when pointing upwards
2. Positive when pointing downwards
3. Positive when pointing leftward
4. Positive when pointing rightward

Answer

The correct answer is: A) Positive when pointing upwards

Explanation

This convention aids in determining the direction and magnitude of shear forces along the length of the beam.