ECOR 1101 Lecture Notes - Lecture 6: Tetherball, Cross Product, Net Force

• School: Carleton University
• Department: Engineering Common Core Courses
• Course: ECOR 1101
• Professor: Ehab Zalok

Document Summary

Moment of a force scalar formulation, cross product, moment of a force vector. Students will be able to: understand and define moment, and, determine moments of a force in 2-d and 3-d cases. The forces can be added together to create. Although it seems that the directions are opposite . In terms of rotation, they are actually the same. Moment of a force - scalar formulation (section 4. 1) The magnitude of the moment is m o = fd. D is the perpendicular distance from point o to the force vector (tangent to the circle) In 2-d the direction of m o is either clockwise or counter-clockwise depending on the tendency for rotation. ** counter-clockwise is known to be (by convention) the positive direction. ** clockwise is known to be (by convention) the negative direction. But if you want to differ from the convention, state it (what is positive and negative) on your question paper.