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21 December, 04:50

A car traveling at 25m/sec, stops in 0.103 km. what is the deceleration provided by the brakes?

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  1. 21 December, 07:16
    0
    -3.03 m/s²

    Explanation:

    v² = v₀² + 2a (x - x₀)

    where v is the final velocity,

    v₀ is the initial velocity,

    a is the acceleration,

    x is the final position,

    and x₀ is the initial position.

    Given:

    v = 0 m/s

    v₀ = 25 m/s

    x = 103 m

    x₀ = 0 m

    Find: a

    v² = v₀² + 2a (x - x₀)

    (0 m/s) ² = (25 m/s) ² + 2a (103 m - 0 m)

    a = - 3.03 m/s²

    Round as needed.
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