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28 August, 19:07

during a crash, an airbag inflates to stop a dummys forward motion. the dummy mass is 75 kg. if the net force is on the dummy is 825 N toward the rear of the car, what is the dumys deceleration

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Answers (2)
  1. 28 August, 19:12
    0
    11 m/s²

    Explanation:

    Deceleration: This can be defined as the rate of decrease of velocity. The S. I unit of deceleration is m/s².

    From the question,

    F = md ... Equation 1

    Where F = Force acting on the dummy towards the rear of the car, m = mass of the dummy, d = deceleration of the dummy.

    make d the subject of the equation

    d = F/m ... Equation 2

    Given: F = 825 N, m = 75 kg.

    substitute into equation 2

    d = 825/75

    d = 11 m/s²
  2. 28 August, 19:21
    0
    11 m/s^2.

    Explanation:

    Given:

    Mass = 75 kg

    Force = 825 N

    F = m * a

    a = 825 : 75

    = 11 m/s^2.
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