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Iron bars dropped onto dirt, accelerating fast.
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Heavy metal bars dropped on dirt in two stages, low to high.
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Heavy metal bars dropped on dirt in two stages, high to low.
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Heavy metal bars dropped onto dirt and tumbling (2).
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Heavy metal bars dropped onto dirt and tumbling (1).
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Heavy metal bars dropped swiftly onto dirt.
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Heavy metal bars dropped swiftly from a height onto dirt.
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Heavy metal bars dropped on dirt, skipping.
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Heavy metal bars dropped on dirt, skipping heavily.
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Heavy metal bars dropped onto dirt, singualy, then summed.
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Heavy metal bars dropped lopsided onto dirt.
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Heavy metal bars dropped irregularly onto dirt.
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Heavy metal bars dumped onto dirt, then toppling over.
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Heavy metal bars dumped recklessly onto dirt.
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Heavy metal bars dumped onto dirt.
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Heavy metal bars dumped swiftly onto dirt.
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Heavy metal bars dumped simply onto dirt.
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Heavy metal bars dumped hard onto dirt.
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Heavy metal bars dumped onto dirt fluidly.
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Heavy metal bars dumped onto dirt fast.
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