I’m felt but not seen
Rarely viewed on a screen
If you stand still, I’m nothing
Keep your pace, I’m nothing
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1 Answer
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4
My guess
Acceleration
I’m felt but not seen
You can't see acceleration, but you feel the force on your body
Rarely viewed on a screen
A display will normally show a speedometer, not an accelerometer
If you stand still, I’m nothing
Stand still (stationary) = no acceleration
Keep your pace, I’m nothing
No change of speed = no acceleration
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3$\begingroup$ "If you stand still, I’m nothing" is a dubious clue. $\endgroup$ Mar 23, 2020 at 11:34
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$\begingroup$ It is actually plain wrong. When a pendulum reaches max height, it stands still but acceleration has reached its maximum as well. $\endgroup$ Mar 23, 2020 at 12:14
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1$\begingroup$ I edited the answer. I think the clue is correct-ish. It doesn't say "no speed", but "stand still". "Stand still" can be interpreted as being stationary. And something stationary has no acceleration. It might not pass in a physics exam, but I think it's close enough in a puzzle. $\endgroup$– CG.Mar 23, 2020 at 12:23
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1$\begingroup$ (And I'm not sure I would say a pendulum stands still at its peak. It has a brief moment of zero velocity, but doesn't actually stand still for any measurable amount of time.) $\endgroup$– CG.Mar 23, 2020 at 12:26