Say I was compressing a spring with high k value in a vice (not sure why I’d want to do that but it’s hypothetical).
As F =k(dx), there would be a force acting back against the vice when I compress the spring. In practice, how can the vice stay put and not unwind when a force is pushing back on it?
In: 3
The angle of the thread(the spiral of the screw) is the reason why.
There is a lot more force pushing perpendicular to the tread than there is pushing parallel to the tread.
ElI5. Pushing a miniature car forward up a wheel chair ramp is easier than pushing forward a car up a regular stair ramp or something steeper
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