Your book calls that direction positive…by convention, the ‘into’ direction is often called the negative direction. It is largely a matter of choice. In the same way, a clockwise moment per your book is called positive, whereas convention usually calls a clockwise moment as negative. Can moment of inertia isRead More →

TURNING FORCES If an object is fixed at one point and can rotate around it, that point is called a pivot. If a force acts on the object, the object turns around the pivot. The turning force is called a torque and the effect it produces is called a moment.Read More →