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Q.

What is the linear velocity of a person at equator of the earth due to its spinning motion? (Radius of the earth = 6400km)

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a

400m/ s

b

465.5m/ s

c

200m/ s

d

360m/ s

answer is D.

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Detailed Solution

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ω=2πNt=2π×124×60×60=π43,200rads−1R=6.4×106mV=Rω=6.4×106×π43,200 =465.5m/s

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