A ball of mass \( m \) falls down without initial velocity from a height \( h \) over the Earth'...

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A ball of mass \( m \) falls down without initial velocity from a height \( h \) over the Earth's surface. Find the increment of the ball's angular momentum vector picked up during the time of falling (relative to the point \( O \) of the reference frame moving translationally in a horizontal direction with a velocity \( V \) ). The ball starts falling from the point \( O \). The air drag is to be neglected.
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