I heard that if a car accelerates from rest, a balloon would move forwards instead of backward. Why is this? Science says it’s because of density, but I don’t get their explanation. It also seems like it’s violating newton’s first law.
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Specifically a balloon full of Helium will move in the opposite direction that what is expected when a car accelerates fast.
Normally you would expect an object to move backwards in a car because of momentum, but a Helium balloon will move forward.
This is because the Helium is much lighter than air, and it’s the air in the car that moves backwards pushing the balloon forward.
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