PH-536
Principle of moments
Physics · Secondary 3 · Hard · Principle of moments
Two forces act upwards on a beam: 18 N at support X and 7.0 N at support Y. The total downward force on the beam is 25 N. What is the additional downward force that must be added so the beam is in vertical equilibrium?
- 0 N
- 7.0 N
- 11 N
- 18 N
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