A particle is moving along circular path of radius 40 m with a uniform speed of `20m//s`. Then the time taken for the particle to complete half revolu
A particle is moving along circular path of radius 40 m with a uniform speed of `20m//s`. Then the time taken for the particle to complete half revolution will be
A. `4 pi s `
B. `pi s`
C. `2 pi s`
D. `pi //2 s`
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Correct Answer - C
`omega = (v)/(r)=(20)/(40)=(1)/(2)`
`T=(2pi)/(omega)=(2pi)/(1/2)=4pi`
`T_(1//2)=(4pi)/(2)=2pi`.
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