# Torques Equilibrium And Center Of Gravity? Quick Answer

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Torques equilibrium, and center of gravity Introduction Torque is a quantitative measure of the tendency of a force to cause or change the rotational motion of a rigid body. A torque is the result of force acting at a distance from an axis of rotation.

## University Physics Lectures, Exp 14 Torques, Equilibrium, and Center of Gravity, Introduction

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## Why torque about Centre of gravity is zero?

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Gravitational Force is acting at the center of the drum which is intersecting the axis of rotation (i.e. →r = 0), causing value of torque zero.

Why is torque zero at center of gravity?

If force is applied at the centre of mass of the body, the perpendicular distance between point pf application of force and centre is zero and thus the torque is also zero.

How does torque relate to center of gravity?

Gravity will pull in the CoM as a force applied at a point. So as long as this CoM is not straight under the rotation point, gravity will try to rotate the object (it will cause a torque, since the distance r is not zero in your formula, unless the CoM is exactly under the rotation point).

What is the torque of centre of gravity?

The product of the force and the perpendicular distance to the center of gravity for an unconfined object, or to the pivot for a confined object, is called the torque or the moment. A torque is also a vector quantity and produces a rotation in the same way that a force produces a translation.

Why is the total torque zero?

The total torque on the object is the vector sum of all the external torques. According to Newton’s third law, the sum of all the internal torques is zero. For an object to be in mechanical equilibrium, the net external force and the net external torque acting on the object have to be zero. Ftot = 0, τtot = 0.

## How does torque relate to equilibrium?

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A torque is a vector quantity which means that it has both a magnitude (size) and a direction associated with it. If the size and direction of the torques acting on an object are exactly balanced, then there is no net torque acting on the object and the object is said to be in equilibrium.

What is the relation between rotational equilibrium and torque?

In rotational equilibrium, the sum of the torques is equal to zero. In other words, there is no net torque on the object.

Can an object in equilibrium have torque?

For an object to be in equilibrium, it must be experiencing no acceleration. This means that both the net force and the net torque on the object must be zero.

Does torque affect static equilibrium?

If there is only one external force (or torque) acting on an object, it cannot be in equilibrium. True, as the sum of forces cannot be zero in this case unless the force itself is zero. If an object is in equilibrium there must be an even number of forces acting on it.

What do you conclude about the relationship of net torque to static equilibrium?

If the object is in static equilibrium, then it is experiencing zero net force, which means that no matter what reference point we choose, the net torque will be the same.

## How does center of gravity affect torque?

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Gravity will pull in the CoM as a force applied at a point. So as long as this CoM is not straight under the rotation point, gravity will try to rotate the object (it will cause a torque, since the distance r is not zero in your formula, unless the CoM is exactly under the rotation point).

What is the relationship between torque and the center of gravity?

The product of the force and the perpendicular distance to the center of gravity for an unconfined object, or to the pivot for a confined object, is called the torque or the moment.

Does gravity affect torque?

Gravity provides no torque, and the friction and normal forces give opposing torques. But if we choose a reference point where the wheel contacts the road, it is clear that about that point the torque is counterclockwise (only gravity contributes).

Why is torque zero at center of gravity?

If force is applied at the centre of mass of the body, the perpendicular distance between point pf application of force and centre is zero and thus the torque is also zero.

How does center of mass affect torque?

The rotation of a body depends upon the point at which it is hinged. So if a force applied at the center of mass (COM) then it may cause rotation about the axis (if it’s not the one through COM) at which it is hinged by causing a torque to act.

References:

Torques Equilibrium, and Center of Gravity Essay

LR – Torques, Equilibrium, and Center of Gravity – StuDocu

Torques, Equilibrium, and Center of Gravity.docx

Torques Equilibrium, and Center of Gravity – 703 Words – StudyMode

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