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Mechanics 2 Centre of Mass Question

Hi, I'm referring to an OCR past paper - Jan 2007 Q6. I've gotten parts i and ii. But I'm struggling on part iii. I've looked at the mark scheme and don't get where they're getting the 15 sin 45 from. I get the 30 * 5.17 since you take moments about B. Any help is much appreciated :smile:)))
Original post by marsbar384
Hi, I'm referring to an OCR past paper - Jan 2007 Q6. I've gotten parts i and ii. But I'm struggling on part iii. I've looked at the mark scheme and don't get where they're getting the 15 sin 45 from. I get the 30 * 5.17 since you take moments about B. Any help is much appreciated :smile:)))


You need to link the paper and markscheme, othewise everyone attempting to respond is going to have to go searching for them - not likely to happen.
Reply 2
Original post by ghostwalker
You need to link the paper and markscheme, othewise everyone attempting to respond is going to have to go searching for them - not likely to happen.

ah cheers, will do in future :smile: I got it in the end haha

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