A disc is purely rolling down an inclined plane of length l & angle . What is the value of friction acting on it? Let the mass of the disc be M & radius be R.

A disc is purely rolling down an inclined plane of length l & angle

1.	A disc is purely rolling down an inclined plane of length l & angle . What is the value of friction acting on it? Let the mass of the disc be M & radius be R.
A.	(Mgsin )/3
B.	0
C.	(4Mgsin )/3
D.	(2Mgsin )/3
Answer» B. 0

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A disc is purely rolling down an inclined plane of length l &amp; angle . What is the value of friction acting on it? Let the mass of the disc be M &amp; radius be R.

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A disc is purely rolling down an inclined plane of length l & angle . What is the value of friction acting on it? Let the mass of the disc be M & radius be R.