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1 meter per second is approximately 2.237 mph. Therefore, multiply 21 x 2.237 to determine miles per hour:

  • 21 x 2.237 = about 46.975 mph
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13y ago
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4mo ago

To convert 21 meters per second to mph, you can use the following conversion factors: 1 meter per second is approximately equal to 2.237 mph. Therefore, 21 meters per second is approximately 47.25 mph.

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Q: How do you convert 21 meters per second to mph?
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