PHYSICS

IF EARTH WERE TO ROTATE FASTER THAN ITS PRESENT SPEED THEN WEIGHT PF OBJECT WILL DECREASE AT EQUATOR BUT REMAIN UNCHANGED AT POLES why?

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asked by AYESHA
  1. centripetal acceleration
    Ac = R omega^2
    R = earth radius at equator
    but
    R = 0 at poles

    rotation of earth tries to throw you off into space but gravity holds you on earth.
    g = 9.81 - R omega^2

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    posted by Damon

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