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Therefore any force directed parallel to the particle's position vector does not produce a torque. [9] [10] The magnitude of torque applied to a rigid body depends on three quantities: the force applied, the lever arm vector [11] connecting the point about which the torque is being measured to the point of force application, and the angle ...
The output power of a motor is the product of the torque that the motor generates and the angular velocity of its output shaft. Likewise, the power dissipated in an electrical element of a circuit is the product of the current flowing through the element and of the voltage across the element. [1] [2]
The work done by a torque acting on an object equals the magnitude of the torque times the angle through which the torque is applied: =. The power of a torque is equal to the work done by the torque per unit time, hence: P = τ ω . {\displaystyle P=\tau \omega .}
Line of action. The line of action is shown as the vertical dotted line. It extends in both directions relative to the force vector, but is most useful where it defines the moment arm. In physics, the line of action (also called line of application) of a force (F→) is a geometric representation of how the force is applied. It is the straight ...
For now just consider the magnitude of the torque on the pendulum. | τ | = − m g ℓ sin θ , {\displaystyle |{\boldsymbol {\tau }}|=-mg\ell \sin \theta ,} where m is the mass of the pendulum, g is the acceleration due to gravity, l is the length of the pendulum, and θ is the angle between the length vector and the force due to gravity.
The moment of force, or torque, is a first moment: =, or, more generally, .; Similarly, angular momentum is the 1st moment of momentum: =.Momentum itself is not a moment.; The electric dipole moment is also a 1st moment: = for two opposite point charges or () for a distributed charge with charge density ().
A couple is a pair of forces, equal in magnitude, oppositely directed, and displaced by perpendicular distance or moment. The simplest kind of couple consists of two equal and opposite forces whose lines of action do not coincide. This is called a "simple couple". [1] The forces have a turning effect or moment called a torque about an axis ...
Motor velocity constant, back EMF constant. is the motor velocity, or motor speed, [2] constant (not to be confused with kV, the symbol for kilovolt), measured in revolutions per minute (RPM) per volt or radians per volt second, rad/V·s: [3] The rating of a brushless motor is the ratio of the motor's unloaded rotational speed (measured in RPM ...