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Standard X

Physics

Centre of Gravity

The co-ordina...

Question

The co-ordinates of a triangle PQR are P(1, 2), Q(4, 6) and R(–2, –2). Three particles of masses 2 kg, 4 kg and m kg are placed at the vertices of the triangle. If the co-ordinates of the centre of mass are calculate the mass m.

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