4. What force can stop a 1400 kg truck accelerating at 7.5 m/s/s?

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4. What force can stop a 1400 kg truck accelerating at 7.5 m/s/s?

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Phúc Điền 4 years 2021-07-27T13:18:22+00:00 1 Answers 87 views 0

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  1. Tryphena
    0
    2021-07-27T13:20:19+00:00
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    Answer:

    10.5 kN

    Explanation:

    Force is a product of mass and acceleration, therefore, expressed as am=F

    Where a is acceleration of an object, m is the mass and F is rhe force exerted.

    Given m as 1400 kg and a as 7.5 m/s2 then force will be

    F=1400*7.5=10500 N

    Converted to kN

    We know that 1 kN=1000 N

    Therefore, to convert 10500 N to kN, we divide the above by 1000 hence 10500/1000=10.5 kN

    Therefore, the force is equivalent to 10.5 kN

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