Total Energy Problem: Ratio of A to B

In summary, the problem discusses an object with a mass of 2.00 kg at a starting position A, 20.0 m above the ground, and a point B located 8.00 m below A. The problem neglects air resistance and uses g=10.0 m/s(squared). The question asks for the ratio of the total energy of the object at positions A and B. The equation g=10.0 m/s(squared) is provided. The solution requires another equation, and it is unclear how the object moves from A to B.
  • #1
PhysicsGirl
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Homework Statement



An object of mass 2.00 kg is held at a position A, a vertical height of 20.0 m above the ground. Point B is 8.00 m directly below A. Neglect air resistance and use g=10.0 m/s(squared)

What is the ratio of the total energy of the object at position A to position B?

Homework Equations



g=10.0 m/s(squared)

The Attempt at a Solution

 
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  • #2
What is the difference in energy between the object at rest at position A and the object at rest at position B? (There's another equation you need, and you must have just seen it if you've been assigned this problem.)
 
  • #3
By the way - did you quote the problem exactly? I ask because it doesn't actually state how the object gets from A to B. If it's just dropped and is moving when it passes B, that's different than if you just lower it to B and let it come to rest there.
 

FAQ: Total Energy Problem: Ratio of A to B

1. What is the Total Energy Problem?

The Total Energy Problem refers to a concept in physics where the total energy of a system is conserved, meaning it remains constant over time. This means that the energy of the system cannot be created or destroyed, only transferred from one form to another.

2. How is the ratio of A to B calculated in the Total Energy Problem?

The ratio of A to B in the Total Energy Problem is calculated by dividing the energy of component A by the energy of component B. This can be expressed as A/B or in percentage form.

3. What factors affect the ratio of A to B in the Total Energy Problem?

The ratio of A to B in the Total Energy Problem can be affected by various factors such as the initial energy of each component, the type of energy involved (e.g. kinetic, potential, thermal), and the efficiency of energy transfer between the components.

4. How does the conservation of energy relate to the Total Energy Problem?

The conservation of energy is a fundamental law of physics that states energy cannot be created or destroyed, only transformed. This concept is closely related to the Total Energy Problem, as the total energy of a system remains constant and is conserved throughout any energy exchanges or transformations.

5. How is the Total Energy Problem applied in real-world scenarios?

The Total Energy Problem has many practical applications in fields such as engineering, thermodynamics, and environmental science. It can be used to analyze and optimize energy systems, understand energy transfer in different processes, and predict the behavior of complex systems involving multiple sources of energy.

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