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Putting down a book, impact
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Dropping a large book onto a cement surface, medium impact
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Book dropped on cement surface
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Book slide and then goes down
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Book dropped onto a hard surface, heavy impact
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Putting a book down, impact
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Book dropped onto a hard surface, light impact
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Book dropped onto a hard surface, light impact
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Book dropped onto a hard surface, medium impact
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Book dropped onto a soft surface, medium impact