aq1q said:so, we assume that the 6.5 block is sliding? not at rest?
Finding the tension in a string allows us to understand how forces are acting on the string and the objects attached to it. This information is crucial in designing and analyzing systems that involve strings, such as pulleys and friction.
Friction can either increase or decrease the tension in a string, depending on the direction of the applied force. If the force is applied in the same direction as the string, friction will increase the tension. On the other hand, if the force is applied in the opposite direction, friction will decrease the tension.
No, the tension in a string can never be zero as long as there are forces acting on the string. Without any tension, the string would be slack and would not be able to support any weight or transfer any forces.
A pulley can change the direction of the applied force, but it does not change the magnitude of the force. Therefore, the tension in a string will be the same on both sides of the pulley, but it may be in different directions depending on the pulley's orientation.
The tension in a string can be affected by the magnitude and direction of the applied forces, as well as the presence of friction. The weight of the objects attached to the string and the angle at which the string is pulled can also impact the tension.