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20 May, 23:20

Calculate the kinetic energy (in units of kj and ft-lbf) for a 908 kg automobile traveling at 89 km/hour

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  1. 20 May, 23:28
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    Kinetic energy is the energy that is possessed by an object that is moving. It is calculated by one-half the product of the mass and the square of the velocity of the object. We calculate as follows:

    KE = mv^2 / 2

    KE = 908 kg (89 km/hr (1000 m / 1 km) (1 hr / 3600 s)) ^2 / 2

    KE = 277479.48 J or 204658.05 ft-lbf
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