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If the coordinates of three mass points ...

If the coordinates of three mass points are in the x, y plane, then express the centre of mass with respect to the origin.

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`x=(m_1x_1+m_2x_2)/(m_1+m_2)` and `y=(m_1y_1+m_2y_2)/(m_1+m_2)`
`:.` C=(X,Y)
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SUBHASH PUBLICATION-SYSTEMS OF PARTICLES AND ROTATIONAL MOTION-THREE MARKS QUESTION WITH ANSWERS
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  14. What are the properties of a couple acting on a body ?

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  15. State and explain the law of moments.

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