A person with his hands in his pockets is skating on ice at the velocity of 10 m/s and describes a circle of radius 50 m. What is his inclination with vertical
A
tan−1(110)
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B
tan−1(35)
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C
tan−1(1)
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D
tan−1(15)
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Solution
The correct option is Dtan−1(15) The inclination of person from vertical is given by, tanθ=v2rg=(10)25×10=15∴θ=tan−1(15)