A drag racer starts her car from rest and accelerates at 6.2 m/s for the entire distance of 367 m. How long did it take th

Question

A drag racer starts her car from rest and
accelerates at 6.2 m/s for the entire distance
of 367 m.
How long did it take the car to travel this
distance?
Answer in units of s.

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Tryphena 6 months 2021-07-17T20:47:56+00:00 1 Answers 6 views 0

Answers ( )

  1. nguyetanh
    0
    2021-07-17T20:49:47+00:00
    Reply

    Answer:

    10.9 s

    Explanation:

    Given:

    Δx = 367 m

    v₀ = 0 m/s

    a = 6.2 m/s²

    Find: t

    Δx = v₀ t + ½ at²

    367 m = (0 m/s) t + ½ (6.2 m/s²) t²

    t ≈ 10.9 s

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