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Prove that the resultant of two force...

Prove that the resultant of two forces acting at point O and represented by ` vec O B` and ` vec O C` is given by 2` vec O D` ,where D is the midpoint of BC.

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To prove that the resultant of two forces acting at point O, represented by vectors \(\vec{OB}\) and \(\vec{OC}\), is given by \(2\vec{OD}\), where D is the midpoint of BC, we can follow these steps: ### Step-by-Step Solution: 1. **Define the Vectors**: Let \(\vec{OB}\) and \(\vec{OC}\) be the vectors representing the two forces acting at point O. We want to find the resultant vector \(\vec{R}\). 2. **Express the Resultant Vector**: ...
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