A 0.30 kg ball on a string goes round a vertical circle with just enough speed to keep the string taut at the top. Taking g = 9.8 m/s², what is the tension at the bottom?

PhysicsHardHigh School (11–12)Mechanics › Work, Energy and Power

A $0.30\ \text{kg}$ ball on a string goes round a vertical circle with just enough speed to keep the string taut at the top. Taking $g = 9.8\ \text{m/s}^2$ , what is the tension at the bottom?

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