A car carrying a 71 kg test dummy crashed into a wall at 24m/s and is brought to rest in .10s. What is the magnitude of the average force ex

Question

A car carrying a 71 kg test dummy crashed into a wall at 24m/s and is brought to rest in .10s. What is the magnitude of the average force exerted by the seat belt on the dummy

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Ladonna 4 years 2021-08-01T15:29:21+00:00 1 Answers 25 views 0

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  1. Euphemia
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    2021-08-01T15:30:37+00:00
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    The answer for the following problem is mentioned below.

    • Therefore the force exerted by the seat belt on the dummy is 170.4 N  

    Explanation:

    Given:

    mass of the dummy (m) = 71 kg

    velocity of the dummy (v) = 24 m/s

    time (t) = 10 seconds

    To solve:

    Average force exerted (F)

    We know;

    To calculate the average force;

    According to the formula;

    F = (m × v) ÷ t

    Where;

    F represents the force exerted

    m represents the mass of the dummy

    v represents the velocity

    t represents the time

    F = \frac{m*v}{t}

    F = \frac{71*24}{10}

    F = \frac{1704}{10}

    F = 170.4 N

    Therefore the force exerted by the seat belt on the dummy is 170.4 N  

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