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# M2 Centre of Mass question watch

1. Unsure about how to go about this question - mainly because it's not a lamina, do you treat it any differently? I'm guessing the mass of the entire shape is 20 and not 22 because of this, but I have no idea how to find the CoM of the right angle triangle. I've looked at the mark scheme and it doesn't make any sense to me. Can anyone help?
2. (Original post by Protostar)

Unsure about how to go about this question - mainly because it's not a lamina, do you treat it any differently? I'm guessing the mass of the entire shape is 20 and not 22 because of this, but I have no idea how to find the CoM of the right angle triangle. I've looked at the mark scheme and it doesn't make any sense to me. Can anyone help?
I’m on my phone so can’t explain properly - I’m replying because no one else has yet.

There are videos explaining how to deal with wire frameworks e.g. this one:

https://www.examsolutions.net/tutori...ire-framework/

And if this is an Edexcel exam question then there may be an examsolutions video on this question.

I can help later if you still need it and no one else has replied.
3. (Original post by Notnek)
I’m on my phone so can’t explain properly - I’m replying because no one else has yet.

There are videos explaining how to deal with wire frameworks e.g. this one:

https://www.examsolutions.net/tutori...ire-framework/

And if this is an Edexcel exam question then there may be an examsolutions video on this question.

I can help later if you still need it and no one else has replied.
Ahhh, this helped a lot - thank you!

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