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Translational Inertia = ma, where "m" is the mass, and "a" is the acceleration of the object. Calculate the rotational inertia or the moment of inertia by multiplying the mass of the object with square of the distance between the object and the axis, the radius of rotation.
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Answer:
dive because everyone argues about it
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Although it wasn't nearly as quick as trains when they were invented ,the pony express took a shorter time to mail letters than ships,which would often take many months,but anyways the main reason it was fast was because at a certain point the first mailman could stop to take a rest while another would step in and go further and this would go on,and since horses have been known to be fast it was rather easier to travel.
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