Engineering Science 1022A/B/Y Lecture 7: Moments

• School: Western University
• Department: Engineering Science
• Course: Engineering Science 1022A/B/Y
• Professor: Aiham Adawi

Document Summary

Moment of a force: measure of its rotational effect. The moment of a force about a point provides a measure of the tendency for rotation about a point or axis. This tendency for rotation is sometimes called a torque. Consider the moment induced by a wrench with a force applied as shown. The force will cause the pipe to rotate about the axis, to the plane containing both and. The magnitude of a moment due to a force is: Moment arm ( ): the perpendicular distance from the axis at point to the line of action of the force. The direction of is either clockwise or counter clockwise depending on the tendency for rotation.