Reaction Force of a Cantilever Point Load
Easymomentscantilever
A 2 m cantilever carries a 5 kN downward point load at its free end. Neglect self-weight. What is the magnitude of the fixed-end reaction moment?
- A2.5 kN·m
- B5 kN·m
- C10 kN·m
- D20 kN·m
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Answer: C. 10 kN·m
The support must resist the load moment: M = PL = 5 × 2 = 10 kN·m. The reaction moment acts opposite to the moment produced by the load.
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