adamwills17
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Currently stuck on this last part of the question on June 2006 Mei M2 where the answer is apparently 15N whereas I keep getting 35N as I think that force at C is acting upwards and is acting anticlockwise and B and Q are both acting clockwise, can anyone tell me any rules I'm missing out here or mistakes I am blindly making?
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adamwills17
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Image of question is here

https://onedrive.live.com/redir?resi...nt=photo%2cjpg
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lizard54142
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(Original post by adamwills17)
Currently stuck on this last part of the question on June 2006 Mei M2 where the answer is apparently 15N whereas I keep getting 35N as I think that force at C is acting upwards and is acting anticlockwise and B and Q are both acting clockwise, can anyone tell me any rules I'm missing out here or mistakes I am blindly making?
Can you post your working?
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adamwills17
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(Original post by lizard54142)
Can you post your working?
https://onedrive.live.com/redir?resi...nt=photo%2cjpg
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lizard54142
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I agree that the reaction at B is 60N. You then need to take moments about another point, but this time in the rod BC. Note that the reaction at B is still acting in BC.
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a96clark
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(Original post by adamwills17)
Currently stuck on this last part of the question on June 2006 Mei M2 where the answer is apparently 15N whereas I keep getting 35N as I think that force at C is acting upwards and is acting anticlockwise and B and Q are both acting clockwise, can anyone tell me any rules I'm missing out here or mistakes I am blindly making?
Do moments about A to get the force at C, and do moments about C to get the force at A. Remember to include every force along the poles
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bowdenal
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Have you got horizontal and vertical components of the contact force at A. did you take moments about A?
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