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M2 - Centre of mass

Need help with q1a. I haven't done an example like this. Any hints?
(edited 7 years ago)
Centre of mass.jpg42.5KB
Original post by Super199
Need help with q1a. I haven't done an example like this. Any hints?


Assign some axes - I'd make A the origin.

Work out the x-coordinate of the CofM, and the y-coordinate.

Pythagoras will give you the distance.
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Super199
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Original post by ghostwalker
Assign some axes - I'd make A the origin.

Work out the x-coordinate of the CofM, and the y-coordinate.

Pythagoras will give you the distance.

Hmm. I tried working out the coordinates of B c and d from a.

B= 0.6,0
C = 0.6,-0.6
D =0,-0.6

I dont think im doing this right
Original post by Super199
Hmm. I tried working out the coordinates of B c and d from a.

B= 0.6,0
C = 0.6,-0.6
D =0,-0.6

I dont think im doing this right


CofM of each rod will be at its centre.
Reply 4
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Super199
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Original post by ghostwalker
CofM of each rod will be at its centre.


Cheers , got it :smile:

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