5)
A man of 50 kg is standing on the school play ground at Trichy. The latitude of Trichy is 10.8.
a. Calculate the centrifugal force experienced by the man.
b. With what minimum angular speed the earth must rotate so that the magnitude of gravitational force is equal to the magnitude of centrifugal force that he experiences? (Radius of the earth i s 6400 km and g = 10 m s-2)
c. Calculate the time (in hour) to complete one rotation (one day) of the earth with the new angular speed.
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pata............... nahi..........?
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