Don't forget that you are looking for just enough energy to have the pendulum complete a full circle around the peg...in which case there is no tension at the top of its circle, and the only force acting on the pendulum is gravity at that particular point.jack1234 said:Sorry, I am not very clear for the explanation.
I assume "the rope is acting perpendicular to the motion" is the downward force for the tension of rope, visually, it is two forces acting on the object, one is the tension of rope, one is the gravitational force, I am not sure what is the incorrectness of my thinking...
Tension of rope refers to the pulling force applied to a rope or cable. It is the measure of how much force is exerted on the rope in order to keep it taut.
Tension of rope is calculated using the formula T = F * L, where T is the tension, F is the force applied, and L is the length of the rope.
Tension of rope is important because it affects the stability and strength of structures that use ropes, such as bridges and cranes. It also plays a crucial role in determining the maximum weight that can be lifted using a rope.
The material of the rope can affect its tension in a few ways. For example, a rope made of a stronger material can withstand a higher tension before breaking. On the other hand, a more elastic material may stretch more under the same tension, which can affect its overall strength and stability.
The tension of a rope can be affected by a number of factors, including the weight of the load being lifted, the angle at which the rope is being pulled, and the condition of the rope itself (such as fraying or wear and tear). Temperature and humidity can also impact the tension of a rope, as they can cause the material to expand or contract.