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A system consisting of two masses connec...

A system consisting of two masses connected by a massless rod lies along the x-axis. A 0.4 kg mass is at a distance x = 2 m while a 0.6 kg mass is at a distance r = 7 m. The x-coordinate of the centre of mass is

A

5 m

B

3.5 m

C

4.5 m

D

4 m

Text Solution

Verified by Experts

The correct Answer is:
A

The x-coordinate of the centre of mass is `X_(CM) = (m_(1) x_(1) + m_(2) x_(2))/(m_(1) + m_(2))= (0.4 xx 2 + 7 xx 0.6)/(0.4 + 0.6) = 5` m
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Knowledge Check

  • A system consists of two masses connected by a massless rod lies along x-axis. The distance of centre of mass from O is

    A
    `2m`
    B
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    C
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    D
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    B
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