How is Torque Calculated?
As shown in the figure N denotes the axis of rotation, F is the horizontal force applied at p to rotate and d represents the moment of the arm (perpendicular distance between the line of action force to the axis of rotation).
Torque = Force × Perpendicular
τ = F d × sin90° [θ = 90°, NO = d]
τ = F × d × 1 [sin90° =1]
τ = F × d
Or in other words,
τ = F × r
Therefore, Torque = Force × Moment of arm
Measurement of Torque
The unit of torque torque is measured in Newton-meters (N-m). This equation can be expressed as the result of multiplying force and position vectors.
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Torque
Torque is the effect of force when it is applied to an object containing a pivot point or the axis of rotation (the point at which an object rotates), which results in the form of rotational motion of the object. The Force causes objects to accelerate in the linear direction in which the force is applied, but in the case of torque, it causes objects to accelerate in the angular direction with respect to the axis of rotation. Torque is also called the “moment of force,” as it depends on the magnitude of the force as well as the moment of the arm, i.e., the perpendicular distance between the line of action force and the axis of rotation. Torque is as fundamental to rotational motion as force is to a straight-line motion. In this article, we will learn about torque and how torque has a tendency to cause rotation, also how to solve numerical problems based on Torque as well.
Table of Content
- Torque Definition
- What is Torque?
- Torque Formula
- How is torque calculated?
- Types of Torque
- Applications of Torque
- What factors affect torque in a vehicle?
- Why is torque important in cars?
- Solved Examples on Torque