- #1
Law of conservation of energy and springs.
- Thread starter firezap
- Start date
AI Thread Summary
The discussion focuses on the application of the law of conservation of energy in the context of a mass oscillating on a spring. Key equations mentioned include the potential energy in the spring (Es = 1/2kx^2) and the kinetic energy (Ek = 1/2mv^2). The participant expresses confusion about the problem and questions the reliability of an online solution they found. Another contributor emphasizes that the total energy, combining potential and kinetic energy, remains constant during the oscillation. Understanding this principle is crucial for solving the problem correctly.
- #2
rude man
Science Advisor
- 8,032
- 869
How about energy conservation as the mass oscillates back & forth?
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- #3
- #4
rude man
Science Advisor
- 8,032
- 869
firezap said:
I'm sorry, I can't read it.
But it's a simple problem if you keep total (potential plus kinetic) energy constant as the mass oscillates.
In this question, I have a question. I am NOT trying to solve it, but it is just a conceptual question.
Consider the point on the rod, which connects the string and the rod. My question: just before and after the collision, is ANGULAR momentum CONSERVED about this point?
Lets call the point which connects the string and rod as P.
Why am I asking this? : it is clear from the scenario that the point of concern, which connects the string and the rod, moves in a circular path due to the string...
This problem is two parts. The first is to determine what effects are being provided by each of the elements - 1) the window panes; 2) the asphalt surface. My answer to that is
The second part of the problem is exactly why you get this affect.
And one more spoiler:
F1=(5000+200)g=5200*10=52000N --> F2=(5000+100)g=5100*10=51000N ?
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