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One runner has a mass of 40 kg, while another has a mass of 80 kg....

One runner has a mass of 40 kg, while another has a mass of 80 kg. The two runners have the same kinetic energy. Is one running faster than the other? If yes, which one, and by what factor is her speed greater?
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Answer #1

Kinetic Energy of mass 40kg (m. ) K.E, = I m, 0,2 Kinetic Energy of mass 80kg me) K.E = 4 meuz? Kinetic Energies are same K:

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