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Situation B: Two vehicles of the same mass moving at different speed. 1500 kg 5 m/s 1500 kg 10 m/s myse The kinetic energy of a car travelling at 10 m/s is four times the kinetic energy of a car travelling at 5 m/s. Why is this so? Car travelling at 10 m/s has twice as much the speed of the other car. Since the mass is the same for both vehicles, using the formula of kinetic energy. KE = 1/2 my2 = 1/2 m(2v)2 = 1/2 m (4v²) Therefore, KE = 4(2mv2). The kinetic energy is increased four times
