3 factors that we must always give when expressing a force vector quantity
When expressing a force vector quantity, there are three key factors that must be provided:
1. Magnitude: The magnitude of a force refers to the numerical value or strength of the force. It describes how much force is applied and is typically measured in units of Newtons (N). For example, if a force of 10 Newtons is exerted, the magnitude of the force would be 10 N.
2. Direction: The direction of a force vector refers to the line along which the force is acting. It is important to specify whether the force is acting to the left, right, up, down, or at an angle. Direction can be given using words or by using angles relative to a specific reference point. For example, a force pointing upwards can be represented by specifying the direction as "up" or as an angle such as 90 degrees or π/2 radians.
3. Point of application: The point of application of a force vector specifies where the force is being applied or acting on an object. It is important to indicate the specific location on an object or system where the force is being exerted. This point of application can be a specific point, a line of action, or even the center of mass of an object.
To express a force vector quantity completely, you need to provide all three factors: magnitude, direction, and point of application.