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Grade: 11 

                        
Are there any cases where a frictional forceforcecan increase the mechanical energy of a syatem...
4 years ago

Answers : (1)

Vikas TU
12277 Points 
							
I dont think so.
Because frictional force always acts in negative of the total external force.
And hence therfore the total enrgy of the system would be conserved but only interchanges in form of some loss.
4 years ago
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