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840 feet/40 seconds = 21 feet per second.

840 feet/40 seconds = 21 feet per second.

840 feet/40 seconds = 21 feet per second.

840 feet/40 seconds = 21 feet per second.

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11y ago
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Wiki User

11y ago

840 feet/40 seconds = 21 feet per second.

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Q: What is the unit rate for 840 feet in 40 seconds?
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