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प्रश्न
A cyclist is undertaking horizontal circles inside a cylindrical well of radius 5 m. If the friction coefficient is 0.5, what should be the minimum speed of the cyclist?
संख्यात्मक
उत्तर
Data: r = 5 m, μs = 0.5, g = 9.8 m/s2
`v_(min) = sqrt((rg)/μ_s)`
= `sqrt((5 xx 9.8)/0.5)`
= `sqrt(2 xx 49)`
= `7 sqrt2` m/s
This is the minimum speed of the cyclist.
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Applications of Uniform Circular Motion
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