Is it because the treadmill itself is stationery?
In: Physics
You will be pushed forward with (nearly) the amount of force you exert on the treadmill at the moment the tread freezes and thereafter.
Your body is stationary relative to the room so your momentum relative to it is zero. So if the treadmill stop and you stop you lege you will remain in placee.
Your legs do move back and forward but the motion of one backward is approximately zero.
You can compare it to if you had a stick on the end of a rope and was hanging from it. Swing your legs back and forward and stop and you will most star to move. or at least to any significant degree.
If you would continue to run when it stops you would accelerate forward but you will likely no to that
You don’t have any momentum when you’re running on a treadmill. If your position is not changing over time, your velocity is zero. If your velocity is zero, so is your momentum. A treadmill just provides a method to jog in place using the same motions as running.
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