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Grade: 11

                        

A small object is placed 13,0 cm from the center of a phonograph turntable. It is observed to remain on the table when it rotates at 33i rev/min but slides off when it rotates at 45.0 rev/min. Between what limits must the coefficient of static friction between the object and the surface of the turntable lie?

5 years ago

Answers : (1)

Kevin Nash
askIITians Faculty
332 Points
							234-250_1.PNG
Therefore the lower limit on the coefficient of friction between the turntable and the object is 0.16.
234-2034_1.PNG
Therefore the upper limit on the coefficient of friction between the turntable and the object is 0.030.
5 years ago
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  • Discussion Forum
  • Previous Year Exam Questions


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