That doesn't look right. The angle is to the horizontal, so cos(theta) should be giving a horizontal force component. That needs to be multiplied by a vertical distance. Pls post your working in detail.Repolar said:
Rotational equilibrium refers to the state of a system where the net torque acting on it is equal to zero. This means that the object is not rotating or is rotating at a constant speed.
Translational equilibrium refers to the state of a system where the net force acting on it is equal to zero. This means that the object is not accelerating or is moving at a constant speed. Rotational equilibrium, on the other hand, refers to the state where the net torque is zero, meaning the object is not rotating or is rotating at a constant speed.
The conditions for rotational equilibrium are: the sum of all torques acting on the object must be equal to zero, the net force must be equal to zero, and the object must not be accelerating. Additionally, the forces acting on the object must be balanced and the object must be in a stable position.
To calculate the net torque in a system, you must first determine the distance between the applied force and the pivot point (this is known as the lever arm). Then, multiply the magnitude of the force by the length of the lever arm. Repeat this process for all forces acting on the object and then add all the torques together. If the sum is equal to zero, the system is in rotational equilibrium.
Rotational equilibrium has many real-life applications, such as balancing a see-saw or a lever, designing structures such as bridges and buildings to withstand forces and maintain stability, and understanding the motion of objects such as spinning tops and gyroscopes. It is also important in fields such as engineering, physics, and biomechanics.