# Answer to Question #60163 in Mechanics | Relativity for rutvik

Question #60163

21. A block of mass m is kept on a horizontal ruler. The

friction coefficient between the ruler and the block is g.

The ruler is fixed at one end and the block is at a

distance L from the fixed end. The ruler is rotated about

the fixed end in the horizontal plane through the fixed

end. (a) What can the maximum angular speed be for

which the block does not slip ? (b) If the angular speed

of the ruler is uniformly increased from zero at an

angular acceleration a, at what angular speed will the

block slip ?

friction coefficient between the ruler and the block is g.

The ruler is fixed at one end and the block is at a

distance L from the fixed end. The ruler is rotated about

the fixed end in the horizontal plane through the fixed

end. (a) What can the maximum angular speed be for

which the block does not slip ? (b) If the angular speed

of the ruler is uniformly increased from zero at an

angular acceleration a, at what angular speed will the

block slip ?

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