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rotdyn

rotdyn - line of action ” of the force The line of action...

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Rotational dynamics The effect of a force is to produce an acceleration of the object the force acts on. What causes an angular acceleration? This comes about by action of a force in causing a “twisting” motion of that it acts on. The twisting action of a force is called the torque exerted by the force, τ ± F , where the + corresponds to rotation counterclockwise and is the “ moment arm ” of the torque, i.e. the perpendicular distance from the axis of rotation to the “

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Unformatted text preview: line of action ” of the force. The line of action of a force is a line parallel to the force and coincident with the force. There is a relationship between torque, moment of inertia and angular acceleration that is called Newton’s second law (rotation) τ net = I α . Also, we have in a manner analogous to linear motion, W = ∫ τ d θ (work by a torque) P = τϖ (power by a torque) W net = ∆ K rot (work-rotational kinetic energy theorem) EXAMPLES [in class]...
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rotdyn - line of action ” of the force The line of action...

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