Why does a lorry travelling at 30mph have more kinetic energy than a car travelling at the same velocity?

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Why does a lorry travelling at 30mph have more kinetic energy than a car travelling at the same velocity?

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Tài Đức 5 years 2021-07-21T06:03:24+00:00 1 Answers 57 views 0

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  1. mit
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    2021-07-21T06:04:43+00:00
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    Answer:

    Because it has more mass

    Explanation:

    To understand this, think about the equation of kinetic energy

    KE = \frac{1}{2} m v^{2}

    Kinetic energy depends on both the velocity (v) as well as the mass (m).

    Because a lorry is bigger and heavier than a car, it will have more mass. With more mass, at the same velocity the lorry with have more kinetic energy.

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