Question

Write the expression for torque acting on a body in rotational motion .​

Answer 1

Answer:

It is measured by the product of the force and the perpendicular distance of the line of action of force and axis of rotation. Thus, torque = force × perpendicular distance from the axis of rotation. For the entire body τ = (Σ mr2) α = I α. ∵ Σ mr2 = I, the moment of inertia and α is angular acceleration.

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Answer 2

Explanation:

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