Doc Al said:In order to accelerate the object upward you must increase the tension in the string. (Analyze the forces acting on the object and apply Newton's 2nd law.)
Whatever force you exert on the string is the string tension.johnathon said:So if I lift up the string with a force of 2N, the tension also increases by 2N?
So is the tension the equal and opposite reaction to my pulling?Doc Al said:Whatever force you exert on the string is the string tension.
If you increase the force you pull up on the string by 2N, then the tension must increase by 2N. (Treating the string as massless.)
Exactly.johnathon said:So is the tension the equal and opposite reaction to my pulling?
Doc Al said:Exactly.
Tension is the force that is exerted along a string or rope when it is pulled or stretched. When an object is attached to the string and it is being moved, the tension in the string increases.
The weight of the object can increase the tension in the string, especially if the object is heavy. The heavier the object, the more tension is created in the string as it is moved.
The tension in the string can vary depending on the speed at which the object is being moved. As the object is moved faster, the tension in the string may increase due to the force needed to move the object at a faster rate.
Yes, the length of the string can affect the tension when moving an object. The longer the string, the more tension is created as it is being pulled or stretched. This is because the longer string has more surface area, which requires more force to move the attached object.
The angle of the string can affect the tension when moving an object. The tension in the string is greatest when the string is pulled straight, and decreases as the angle of the string becomes more horizontal. This is because the force needed to move the object is spread out over a larger distance as the angle increases, resulting in less tension in the string.