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1. Can someone explain what q2ii is after I don't really understand.
http://www.ocr.org.uk/Images/79719-q...echanics-2.pdf
2. [QUOTE=Super199;64829897]Can someone explain what q2ii is after I don't really understand.
you have to prove that the centre of mass x lies there,
centre of mass of cone and centre of mass of hemisphere then coming together to find the centre of mass for the toy
3. (Original post by Super199)
Can someone explain what q2ii is after I don't really understand.
http://www.ocr.org.uk/Images/79719-q...echanics-2.pdf
I just did a question quite similar to this.

Okay, so initially your axis of symmetry is parallel to the ground. After letting the toy go, it returns to the upright position. Where does the centre of mass lie, then? If it was in the cone, the toy would fall towards the left. If it was in the hemisphere, what would happen? Remember that x is defined as the COM from the common circular plane.
Spoiler:
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Is the answer 0 < theta < 60 degrees? That was the answer on my question.

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