[ELI5] Why does applying a torque on an unthreaded cap map it easier to pull off?
In: Physics
I think it’s because it allows you to use a differemt set of muscles that may be somewhat stronger, and you can still apply some force in the direction you’d like to pull the cap but now you have more force to overcome the inertia.
This is a guess based on my understanding of physics, I cannot confirm it to be the real reason.
When you are in a car and need to break fast you slow down the fastest just before your wheels stop completely. Once they stop you just slide along the road. Once you start sliding friction is lower.
If you twist instead of just pulling it open then you cause the cap to move thereby reducing the friction the cap had while being stuck and not moving. This lowers the total force required in the direction to pull the cap off.
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