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how do we know which system of coordinates to use whether (polar) or (tangential and normal) in case of a rotating system ??
Hi Za Kh. http://img96.imageshack.us/img96/5725/red5e5etimes5e5e45e5e25.gif [Broken]how do we know which system of coordinates to use whether (polar) or (tangential and normal) in case of a rotating system ??
how do we know which system of coordinates to use whether (polar) or (tangential and normal) in case of a rotating system ??