what weighs more a solid bar of iron which weighs same as pile of cotton give reason
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absaransari
Here you assume that the weighing machine does not measure the inertia of the object, but as is usually the case, it measures the normal normal force exerted on the object as it rests on the weighing machine. The total force exerted on the object of mass M in rest is zero, the force of gravity of M g acts downward. The buoyancy force acts upward and is due to the the fact that the air pressure is higher at the bottom of the object than at the top of the object.
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