Physics: Derivation Frictional Force, Angle of Repose and Circular motion on level road

in ActnEarn4 years ago (edited)

Frictional Force:
Screenshot 2020-07-16 at 12.29.38 PM.png

Angle of Repose: The maximum angle that an object is just on the point of sliding: static friction is limiting friction.

Screenshot 2020-07-16 at 12.31.15 PM.png

Circular motion on level road:

Screenshot 2020-07-16 at 12.31.07 PM.png

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All derivations are good but u have not added explanations. And explanations are necessary. Pls add