A disc revolves with a speed of 33 3/1 ​rev/min

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A disc revolves with a speed of 33 3/1 ​rev/min, and has a radius of 15 cm. Two coins are placed at 4 cm and 14 cm away from the centre of the record. If the coefficient of friction between the coins and the record is 0.15, which of the coins will revolve with the record?
27
Nov
A disc revolves with a speed of 33 3/1 ​rev/min, and has a radius of 15 cm. Two coins are placed at 4 cm and 14 cm away from the centre of the record. If the coefficient of friction between the coins and the record is 0.15, which of the coins will revolve with the [...]
Posted in: Chapter 4 - Laws of Motion , NCERT Exemplar Class 11 , Physics ,
Tags: A disc revolves with a speed of 33 3/1 ​rev/min , and has a radius of 15 cm. Two coins are placed at 4 cm and 14 cm away from the centre of the record. If the coefficient of friction between the coins and the record is 0.15 , which of the coins will revolve with the record? ,