Why does stopping a vehicle you’re in cause you to jerk forward, even though motion is supposed to be relative (and the vehicle isn’t moving from your “physics” perspective)?

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Why does stopping a vehicle you’re in cause you to jerk forward, even though motion is supposed to be relative (and the vehicle isn’t moving from your “physics” perspective)?

In: Physics

11 Answers

Anonymous 0 Comments

Conservation of momentum. Your body wants to keep going while the vehicle “holds back” due to its brakes. More obvious if you don’t have a seatbelt on.

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