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Torque is the twisting force that tends to cause rotation. It is the measure of how much a force acting on an object causes that object to rotate. Visit to learn how to calculate torque along with its formula, meaning and applications.
τ = F ⋅ r . The direction of the torque vector is found by convention using the right hand grip rule. If a hand is curled around the axis of rotation with the fingers pointing in the direction of the force, then the torque vector points in the direction of the thumb as shown in Figure 2.
In physics and mechanics, torque is the rotational analogue of linear force. [1] It is also referred to as the moment of force (also abbreviated to moment ). The symbol for torque is typically , the lowercase Greek letter tau. When being referred to as moment of force, it is commonly denoted by M.
Mar 28, 2023 · The basic formula for torque is =, where torque is represented by the Greek letter tau (τ) and equals the force (F) times the distance (or radius, r). If you know the magnitude of the force (in Newtons) and the distance (in meters), you can solve for the torque, expressed in newton-meters (N∙m). [4]
Or every time we move our bodies from a standing position, we apply a torque to our limbs. In this section, we define torque and make an argument for the equation for calculating torque for a rigid body with fixed-axis rotation.
Apr 6, 2023 · Torque Formula Torque is the product of force and distance of the point of application of force and the axis of rotation. \[ Torque (\tau ) = Distance (d) \times Force (F) \\ => \tau = rF \]
The equation above only give the magnitude of the torque, while the right-hand rule determines the direction. Mathematically, a cross product contains both the magnitude and direction of torque: \[\vec\tau=\vec r\times\vec F\]
Learning Objectives. By the end of this section, you will be able to: Describe how the magnitude of a torque depends on the magnitude of the lever arm and the angle the force vector makes with the lever arm. Determine the sign (positive or negative) of a torque using the right-hand rule.
An introduction to torque, a force that causes rotation. Understand how torque is calculated as the product of force and distance, and how it differs from work. Learn about the direction of torque and its units. Get a grasp on the concept of net torque and its role in rotational motion. Created by Sal Khan. Questions. Tips & Thanks.
Nov 25, 2023 · The equation for torque is derived from the Angular Momentum Principle, which states that torque is equal to the change in length over time. Another equation used to represent torque is [math]\displaystyle{ {\Delta}{\vec{L}} = {\vec{\tau}} \times {\Delta}t }[/math]
