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A block of mass 1kg is at x=10m and movi...

A block of mass `1kg` is at `x=10m` and moving towards negative `x-axis` with velocity `6m//s`. Another block of mass `2kg` is at `x=12m` and moving towards positive `x-`axis with velocity `4m//s` at the same instant. Find position of their centre of mass after `2s`.

Text Solution

Verified by Experts

The correct Answer is:
A, B, C
`x_(CM)=(m_1x_1+m_2x_2)/(m_1+m_2)`
`=(m_1(x_1+vt)_1+m_2(x_i+vt)_2)/(m_1+m_2)`
`=((1)(10-6xx2)+(2)(12+4xx2))/(1+2)`
`=12.67m`
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