An average sized human is running with a forward velocity of 2m/s and producing 1500N of vertical force. If their foot is in contact with substrate...

An average sized human is running with a forward velocity of 2m/s and producing 1500N of vertical force. If their foot is in contact with substrate for 0.45s and their center of mass has a vertical displacement of 0.05m, how much energy is the runner storing in their leg during each stride?

Answer: The runner is storing 127.1 J of energy in their leg during each stride.

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