Eli5 Why is force equal to mass multiplied by acceleration and not speed ?

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If a car moves consistently at 80 kmh and it weighs at 600kg, is it not generating any force? since you know, a=0, am I stupid or is Newton ?

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Anonymous 0 Comments

No, it is not generating any force. It has a lot of energy, but only outputs force when it is slowed down either by hitting the brakes or a wall.

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