1.

A mass is hanging from the end of a horizontal barwhich pivots about an axis through its center andis initially stationary. The bar is relased and beginsrotating. As the bar rotates from horizontal tovertical, the magnitude of the torque on the bar...(a) increase

Answer»

it will be decreasingas we know that rfsintheta= Torqueas theta decreases then torque decreases



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