Two objects with the same mass dropped from the same height may not reach the ground at the same time due to differences in air resistance or drag; for example, a feather will fall more slowly than a rock because its shape and surface area create more air resistance relative to its weight. Additionally, if one object is denser or has a different shape than the other, it may experience varying acceleration in the presence of air.
In 1-2 sentences explain why 2 objects with the same as 1 drop from the same height may not reach the ground at the same time
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