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A cyslist goes round a circular path of length 4000 m in 20 second. Calculate the angle through which he bends from vertical in order to maintain the balance
A. `sin^(-1)(0.64)`
B. `tan^(-1)(0.64)`
C. `cos^(-1) (0.64)`
D. None of these

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(a) `400=2pir`
`therefore" " tantheta=(v^(2))/(rg)=((400/20)/(400/(2pi)))^(2)g`
`therefore" " tantheta=(400x2pi)/(400g)=(6.28)/(9.8)=0.64`
`therefore" " theta=tan^(-1)(0.64)`

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