- #1
alba
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does that affect the equivalence principle?
Yes you can .alba said:does that affect the equivalence principle?
You feet will feel 9.80627m/s acceleration on Earth and your head will feel 9.806264773m/s2Stephanus said:Thank you very much
Okay...
The Earth radius from equator is 6378.1 km, let's call it r
https://en.wikipedia.org/wiki/Earth
or 6378.100m
This is what makes me irritated. I'm calculating 1.7 m against a 0.1 km rounding. But, I'll do it anyway...
##F = G \frac{M * \text{my weight} * kg }{r^2}##
...
##F = 9.80627 * N * \text{my weight}##
...
##a_{head} = 9.806264773##
##a_{feet} = 9.80627##
I don't know if my calculation is correct.
Thanks for the attentions.
The whole post is based on the assumption that your feet-head axis is parallel to the radius of the source, which must no necessarily be the case.Stephanus said:Hello, Alba.
Yes you can ..
In a small enough region you cannot tell why you are in an accelerating frame. If the region is large enough that the non-uniform nature of the gravitational field is measurable that will give the game away, but the equivalence principle does not apply to such a large region.alba said:does that affect the equivalence principle?
The easiest way to determine if the acceleration in a lift is due to gravity or a push is to observe the direction of the acceleration. If the lift is moving upwards, the acceleration is due to a push. If the lift is moving downwards, the acceleration is due to gravity.
Yes, you can also use a device called an accelerometer to measure the acceleration. If the accelerometer shows a constant acceleration of 9.8 m/s², then it is due to gravity. If the accelerometer shows a different value, then it is due to a push.
Knowing the cause of acceleration in a lift is important for understanding how the lift is functioning and for ensuring the safety of its passengers. If the acceleration is due to a malfunction or a push by someone, it could indicate a potential problem or danger.
Yes, it is possible for the acceleration in a lift to be a combination of both gravity and a push. For example, if the lift is initially stationary and then someone pushes it upwards, the acceleration would be due to both gravity and the push.
Yes, there is a difference in the acceleration experienced by passengers in these two scenarios. When a lift accelerates due to gravity, the acceleration is constant and feels like weightlessness. However, when a lift accelerates due to a push, the acceleration may vary and feel more forceful or jerky.