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The effect of gravity finally overcame the tensional friction holding it in place, maybe with the aid of a gust of wind, or the loss of a small particle to gravity, throwing off its balance.

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15y ago
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1mo ago

The rock rolled off the cliff due to the force of gravity. Gravity pulls objects towards the center of the Earth, so when the rock's position was disturbed or it was unbalanced, gravity caused it to roll off the cliff.

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Q: If a rock was sitting at the top of a cliff and a rock just rolled off. Why would it just roll off by its self?
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