Give an expression for work done in rotational motion in terms of torq – InterviewSolution

1.

Give an expression for work done in rotational motion in terms of torque.

Answer»

Work done in rotational motion,

W = ∑ F_ir_i × ∆θ,

where ∑ F_ir_i is the algebraic sum of moment of force and ∆θ is the angle through which a body is rotated,

∴ W = Total torque × Angular displacement

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