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Your diagram seems to be for theta = 90 degrees.Auburn2017 said:I have done that but I am not sure how to get the velocity of the mass...
yeah my figure is incorrect. Vg is the gravitational potential energyharuspex said:Your diagram seems to be for theta = 90 degrees.
For the velocity, any conservation law come to mind?
(In your 'relevant equations', I don't understand Vg=mgh. What is Vg there?)
Ok. I thought it more usual to use E or U for energy. What is the T in the preceding equation? Well, I can guess from the equation what it is, but why 'T'?Auburn2017 said:yeah my figure is incorrect. Vg is the gravitational potential energy
kinetic energy. it's just the notation we use.haruspex said:Ok. I thought it more usual to use E or U for energy. What is the T in the preceding equation? Well, I can guess from the equation what it is, but why 'T'?
Ok, so what relates that to Vg?Auburn2017 said:kinetic energy. it's just the notation we use.
U=ΔT-ΔV where V=Vg+Ve and Ve is the elastic potential energy(spring) but it isn't applicable to this problemharuspex said:Ok, so what relates that to Vg?
Let's investigate that. No spring here, so Ve is zero. What is U? Can you assign a value to it?Auburn2017 said:U=ΔT-ΔV where V=Vg+Ve and Ve is the elastic potential energy(spring) but it isn't applicable to this problem
Auburn2017 said:U=ΔE=(T2-T1)+(VG2-VG1)
There are no external forces so now work is done on the system causing E=0. I figured out how to work in on my own. Thank you for your reply.billy_joule said:That's right.
What is the value of ΔE? In other words, does any energy enter or exit the system? (you are expected to assume the nudge does not add any kinetic energy to the pendulum).
Tension is a force that is transmitted through a string, rope, or cable when it is pulled tight by forces acting from opposite ends. It is also known as the pulling force, and its magnitude is equal to the force applied on opposite ends of the string.
Work is defined as the product of force and displacement. In the case of tension, work is done when a force is applied on an object through a string or cable, causing it to move a certain distance in the direction of the force. The amount of work done is determined by the magnitude of the tension force and the displacement of the object.
Yes, tension can affect an object's energy. When a force is applied on an object through a string or cable, causing it to move a certain distance, work is done and the object gains or loses energy depending on the direction of the force. The tension force plays a crucial role in determining the object's change in energy.
Simple machines, such as pulleys and levers, use tension to make tasks easier by redirecting and multiplying forces. For example, a pulley system involves a rope or cable being pulled tightly to lift an object. The tension in the rope is what enables the object to be lifted with less force.
The tension in a system can be calculated by using Newton's second law of motion, which states that the net force acting on an object is equal to its mass multiplied by its acceleration. By analyzing the forces acting on an object and applying this formula, the tension force in the system can be determined.