both directions opposite each other
At any little fiber at any point in the string, if the forces in both directions
were not equal, then that little fiber would be accelerated in the direction
of the greater force.
No, the tension in the string of a swinging pendulum does not do any work. The tension force acts perpendicular to the direction of motion, so it does not apply a force in the direction of displacement. This means that no work is done by the tension force on the pendulum.
To calculate the force in a string, you need to consider the tension in the string. This tension can be calculated using the equation (T = F \cdot \cos(\theta)), where (T) is the tension, (F) is the force applied to the string, and (\theta) is the angle between the string and the direction of the force.
The gravitational tension force acts along the direction of the string or rope that it is exerted through. This force helps maintain the equilibrium of the system by pulling on the objects it is connected to with an equal force in the opposite direction. The line of action of the tension force is always along the string or cable connecting the objects.
To determine the tension in a string, you can use the formula T F L, where T is the tension, F is the force applied to the string, and L is the length of the string. By measuring the force and length, you can calculate the tension in the string.
To calculate string tension in a musical instrument, you can use the formula T F L, where T is the tension in the string, F is the force applied to the string, and L is the length of the string between the points where the force is applied. By measuring the force and length of the string, you can calculate the tension.