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Using superman to teach mechanics
Assuming no air resistance, using a the simple mechanics equation of s = ut + 0.5at^2You can derive that the boy falls 3km+ Well even if there is air resistance, the final distance the boy falls is 929mSo assuming that the boy indeed falls 929m, superman starts flying at 18s. So he takes a total of 10s approx to travel 929m. Works out to be 334440 km/hr. Definitely faster than a speeding bullet :)
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