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A gindstone 1m in diameter, of mass 50 kg, is rotating at 900 rev/min. A tool is pressed normally against the rim with the force of 200N, and the grind stone comes to rest after 10 sec. Find coefficient of friction between the tool and the grindstone. Neglect friction in the bearing.

A gindstone 1m in diameter, of mass 50 kg, is rotating at 900 rev/min. A tool is pressed normally against the rim with the force of 200N, and the grind stone comes to rest after 10 sec. Find coefficient of friction between the tool and the grindstone. Neglect friction in the bearing.

Grade:11

2 Answers

soumen chakravarty
8 Points
9 years ago
5.32×10^-4
Arjun Bakshi
37 Points
9 years ago
Soumen your answer is wrong.
 

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