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 ?
In: 13
Because things that move tend to keep moving.
Think about a car in space – it has a speed and a mass, but it doesn’t take any force to move it. It’s just going to float forever. If you wanted to slow it down or speed it up, you’d need to apply force to make that change.
The car has momentum, but no force is involved. If the car were to hit an asteroid and shove it, then it would be applying that momentum as force – given by the asteroid’s mass multiplied by the change in its speed.
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