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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.
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.
Figure 1: Opening a door with maximum torque. Torque can be either static or dynamic. A static torque is one which does not produce an angular acceleration. Someone pushing on a closed door is applying a static torque to the door because the door is not rotating about its hinges, despite the force applied.
Apr 6, 2023 · The Greek symbol τ represents torque. The unit of force is Newton, and that of distance is meter. Therefore, the unit of torque is Newtonˑmeter (Nm). The dimension of torque is ML 2 T-2. From the above equation, when \( \theta = 90^o, \tau =rF \). Therefore, torque is highest when the applied force is perpendicular to the lever arm.
Sep 12, 2022 · The cross product r ×F r → × F → also tells us the sign of the torque. In Figure 10.7.2 10.7. 2, the cross product r ×F r → × F → is along the positive z-axis, which by convention is a positive torque. If r ×F r → × F → is along the negative z-axis, this produces a negative torque.
May 10, 2024 · torque, in physics, the tendency of a force to rotate the body to which it is applied. The torque, specified with regard to the axis of rotation, is equal to the magnitude of the component of the force vector lying in the plane perpendicular to the axis, multiplied by the shortest distance between the axis and the direction of the force component.
Nov 25, 2023 · Torque is the measure of how much a force acting on an object causes that object to rotate, creating a tendency for the object to rotate about an axis, fulcrum, or pivot. Torque is most commonly classified as "twist", rotational force, or angular force to an object and applying it to a system changes the angular momentum of the system.
Dec 28, 2020 · Torque is to rotational motion what force is to the world of linear motion, although it has units of newton-meters rather than newtons, and it is a vector cross product. The cross product of force and lever arm gives the torque, and its direction is found by 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.
Let us examine which variables torque depends on by thinking about its units: τ = Iα = [kg ⋅ m2][rad s2] = [kg ⋅ m2 s2] = [N ⋅ m] The last equality in the above equation comes from definition of Newtons: F = ma = [kg ⋅ m / s2] ≡ [N]. So we find that torque will have units of force times length.
