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I always read that the static friction applies when the object is not moving. If it starts moving then you have kinetic friction.
But suppose the case of a block on conveyor belt. The block is moving, but I was told that that friction was static friction.
Or suppose the Death Wall. I've also been told that pilots don't fall because they suffer static friction, which cancels the weight.
So how can I know if I have static or kinetic friction if when a block is moving you can have static friction?
But suppose the case of a block on conveyor belt. The block is moving, but I was told that that friction was static friction.
Or suppose the Death Wall. I've also been told that pilots don't fall because they suffer static friction, which cancels the weight.
So how can I know if I have static or kinetic friction if when a block is moving you can have static friction?
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