LaughingPhantom
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Having trouble with this question =
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LaughingPhantom
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Here's the question.
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Stonebridge
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(Original post by LaughingPhantom)
Here's the question.
It would help if you told us exactly what the 'trouble' is.

In this question the maximum tension in the string will be when the mass is at the bottom of the vertical circle.

At that point the tension in the string needs to provide the centripetal force for the circular motion, while the weight of the mass acts in the opposite direction.
If T is the tension and F is the centripetal force, you should have an equation like

T - mg = F
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