prove that angle of friction is equal to angle of repose in the limiting friction.
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A object with massive -m.Then f=mgsin@ and n=mgcos@( @is Limiting angle). €=f÷n=tan@.
And €=tan ¥(¥ is frictional angle)
So tan@=tan ¥
@=¥(proved)
And €=tan ¥(¥ is frictional angle)
So tan@=tan ¥
@=¥(proved)
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