Rotational Equilibrium Problem

Thread starter JoeyBob
Start date Dec 5, 2020
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Equilibrium Rotational Rotational equilibrium

In summary, rotational equilibrium is a state in which an object is not rotating, or is rotating at a constant speed, with no net torque acting on it. It differs from translational equilibrium in that it refers to the balance of forces and torques on an object, while translational equilibrium only considers forces in a straight line. The factors that affect rotational equilibrium include the magnitude, direction, and location of forces, as well as the object's mass and mass distribution. To solve a rotational equilibrium problem, all forces and torques must be identified and the equations of rotational equilibrium must be used. Real-world applications of rotational equilibrium include balancing objects, designing structures, and performing in sports that require rotational movements.

Dec 5, 2020

JoeyBob

Homework Statement: See attached

Relevant Equations: T=r x F

See attached file. Answer is supposed to be 61.25 N, I get 20.09 N.

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Dec 5, 2020

kuruman

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There are 4 forces acting on the bar. You show only 3 in your attempt.

Dec 5, 2020

JoeyBob

kuruman said:

There are 4 forces acting on the bar. You show only 3 in your attempt.

Thanks, I got it.

What is rotational equilibrium?

Rotational equilibrium is a state in which an object is not rotating or accelerating around its axis. This means that the net torque acting on the object is zero, and the object will maintain its current rotational position and velocity.

How do you calculate torque?

Torque is calculated by multiplying the force applied to an object by the distance from the point of rotation to the point of application of the force. This can be represented by the equation T = F x d, where T is torque, F is force, and d is distance.

What is the difference between static and dynamic equilibrium?

Static equilibrium refers to a stationary object that is not moving or rotating, while dynamic equilibrium refers to an object that is moving at a constant velocity or rotating at a constant angular velocity. Both types of equilibrium require a balance of forces and torques.

How do you know if an object is in rotational equilibrium?

An object is in rotational equilibrium if the net torque acting on it is zero. This can be determined by calculating the torques of all the forces acting on the object and ensuring that they cancel each other out. If the net torque is not zero, the object will rotate.

What factors affect rotational equilibrium?

The factors that affect rotational equilibrium include the magnitude and direction of forces, the distance from the point of rotation to the point of application of the force, and the mass and distribution of mass of the object. Any changes in these factors can affect the net torque and disrupt rotational equilibrium.