A 1500-kg car accelerates from 0 to 25 m/s in 7.0s with negligible friction and air resistance. What is the average power delivered by the e

Question

A 1500-kg car accelerates from 0 to 25 m/s in 7.0s with negligible friction and air resistance. What is the average power delivered by the engine? (1 hp 746 W)

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Vân Khánh 5 years 2021-08-06T10:49:44+00:00 1 Answers 473 views 0

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  1. Nem
    0
    2021-08-06T10:50:53+00:00
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    Answer:

    90 hp

    Explanation:

    Power = work / time

    P = ½ (1500 kg) (25 m/s)² / 7.0 s

    P = 67,000 W

    P = 90 hp

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