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Masses 1 kg, 1.5 kg,2 kg and Mkg are sit...

Masses `1 kg, 1.5 kg,2 kg` and `Mkg` are situated at `(2,1,1),(1,2,1),(2,-2,1)` and `(-1,4,3)`. If their centre of mass is situated at `(1,1,3//2)`, the value of `M` is

A

`1kg`

B

`2kg`

C

`1.5 kg`

D

`3kg`

Text Solution

Verified by Experts

The correct Answer is:
C
`x_(cm)=(m_(1)x_(1)+m_(2)x_(2)+m_(3)x_(3)+m_(4)x_(4))/(m_(1)+m_(2)+m_(3)+m_(4))`
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