Hello everyone,
I came across this problem from my Physics textbook.
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I do not understand why the direction of the axle force is pointing downward. I think the upper part of the disk is exerting a downward force on the pivot (as it is pulled down by the Earth's gravity), and according to Newton's third law, the pivot should exert an upward force on the upper part of the disk?
Please correct if I am wrong, thank you very much!
LovePhys
I came across this problem from my Physics textbook.
I do not understand why the direction of the axle force is pointing downward. I think the upper part of the disk is exerting a downward force on the pivot (as it is pulled down by the Earth's gravity), and according to Newton's third law, the pivot should exert an upward force on the upper part of the disk?
Please correct if I am wrong, thank you very much!
LovePhys