# Further mechanics

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Thread starter 1 month ago
#1
A hemisphere bowl of radius r cm is resting in a fixed position with its rim horizontal. A small marble of mass m is moving in a horizontal circle around the smooth inside of the bow. The plane of the circle is 3 cm below the plane of the rim of the bowl. Find the angular speed of the marble.
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1 month ago
#2
What have you tried so far?

I always found that a diagram really helped with these types of questions

2 starting points would be:
Try finding the radius of the circle that the particle traces
You should know that the reaction force R will act perpendicularly to the surface. The radius will also act perpendicularly to the tangent at this point, so R will act along the radius line.
Last edited by Skiwi; 1 month ago
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