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27 October, 05:42

If a ride at disneyworld goes from rest to 27 m/s in 2.8 seconds and the mass of the ride and riders together 5000kg. What is the average power required to do this? Give your answers in both watts and horsepower

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  1. 27 October, 09:07
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    P ≈ 650,000 W

    P ≈ 870 hp

    Explanation:

    Power = work / time

    Power = Δenergy / time

    P = ½ mv² / t

    P = ½ (5000 kg) (27 m/s) ² / 2.8 s

    P ≈ 650,000 W

    P ≈ 870 hp
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