05-12-2019
Physics

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A 50 kg boy and his 100 kg father went jogging. Both ran at a rate of 5m/s. Who had more kinetic energy

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caesarc9403 caesarc9403

05-12-2019

The father because kinetic energy is calculated using 1/2mv^2, but in this case if the velocity was the same then the mass would affect the calculation, and the father has the greater mass this making him have the greater kinetic energy

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The correct answer is A which is what you get when you use Work Done by Air resistance = Kinetic Energy ( using final velocity) I think this is impossible!

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