A tin of cat food weighing 28 g is placed at the top of a dry chopping board made of wood and the board is slowly raised in angle until the tin slides downwards. Measured by the mid-point of a protractor placed at the point where chopping board meets work surface angle at which this movement begins to slide is 24 degrees. What is the co-efficient of friction here ?

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To find the coefficient of friction we can use the concep... View the full answer