- #26

ehild

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The centre of the rod from the pivot is half its length? 0.7m

The centre of the disk from the pivot is just d, the length of the rod: 1.4m.

Correct!

For centre of mass for two point masses:X = m_{1}x_{1}+m_{2}+x_{2}

You have to divide by the whole mass. And you meant m

_{2}x

_{2}instead of

*m*

_{2}+x_{2}.