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Question
A disc of mass M and radius R is placed a rough horizontal surface with its axis horizontal. A light rod of length '2R' is fixed to the disc at point 'A' as shown in figure and a force `3/2` Mg is applied at the other end. If disc starts to roll without slipping the value of "10 × µmin" where µmin is minimum coefficient of friction between disc and horizontal surface required for pure rolling is ______.
Options
8
9
10
11
Solution
A disc of mass M and radius R is placed a rough horizontal surface with its axis horizontal. A light rod of length '2R' is fixed to the disc at point 'A' as shown in figure and a force `3/2` Mg is applied at the other end. If disc starts to roll without slipping the value of "10 × µmin" where µmin is minimum coefficient of friction between disc and horizontal surface required for pure rolling is 8.
