5.Particles of masses 1 kg and 3 kg are at (2i+5j+13k) m and (-6i+4j-2k) m. What is the position of their centre of mass?

5.Particles of masses 1 kg and 3 kg are at (2i+5j+13k) m and (-6i+4j-2

1.	5.Particles of masses 1 kg and 3 kg are at (2i+5j+13k) m and (-6i+4j-2k) m. What is the position of their centre of mass?
A.	1/4 (-16i + 17j + 7k) m
B.	1/4 (-8i + 17j + 7k) m
C.	1/4 (-6i + 17j + 7k) m
D.	1/4 (-6i + 17j + 5k) m
Answer» B. 1/4 (-8i + 17j + 7k) m

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5.Particles of masses 1 kg and 3 kg are at (2i+5j+13k) m and (-6i+4j-2k) m. What is the position of their centre of mass?

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