This probably sounds stupid, but why is it easy to get up in a plane, and walk around as if you were on the ground. Then on a bus it’s harder even though the speed of the vehicle, is slower?
In: Physics
No question is stupid.
The thing that makes it hard to get up is not the speed rather the changes in speed, i.e. ecclleration and deceleration. Buses change speed more often, slowing down and speeding up, and whenever it does so, you experience a force (not real) that feels like you are being thrown forward (deceleration) and backward (excelleration). In addition, the changes in course are more profound in buses than in air plains, these also play role in throwing you from side to side
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