Question

Expalin torque in brief. ??​

Answer 1

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Torque is a twisting or turning force that tends to cause rotation around an axis, which might be a center of mass or a fixed point.

Torque is sometimes confused with work, which is defined as force applied over a distance. However, torsion (twisting) is integral to the definition of torque.

Answer 2

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Physics of Torque:-

In order to find a linear force we need to know a mass and an acceleration. However, torque is a little different, thanks to rotation being involved. Think about opening a door. Where do you push on it when you want it to open? You push on the side of the door where there are no hinges because pushing on the side with the hinges would make it much harder to open. So for torque, we need to know not only the mass and acceleration of a linear force, but also how far that force is from the axis of rotation, since we can get different results depending on that, as well. We can see this in the diagram and equation for torque.

T = F * r * sin(theta)

T = torque

F = linear force

r = distance measured from the axis of rotation to where the linear force is applied

theta = the angle between F and r

In our equation, sin(theta) has no units, r has units of meters (m), and F has units of Newtons (N). Combining these together, we see that a unit of torque is a Newton-meter (Nm).

Finally, theta is needed to take into account the direction from which the linear force is being applied. The force will not always be pushed from straight on like a door. It can come from many different angles.

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