Conservation of Energy through friction and cliffs

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SUMMARY

The discussion centers on the conservation of energy principles applied to a physics problem involving friction and cliffs. Key equations referenced include the total mechanical energy equation E = K + U, where K represents kinetic energy (K = 1/2mv^2) and U represents gravitational potential energy (U = mgh). A critical point raised is that the final answer should not include velocity (v), but rather only mass (m), gravitational acceleration (g), and the height or radius (R) relevant to the problem.

PREREQUISITES
  • Understanding of basic physics concepts, specifically energy conservation.
  • Familiarity with kinetic energy and potential energy equations.
  • Knowledge of variables such as mass (m), gravitational acceleration (g), and height (h).
  • Ability to manipulate algebraic equations to isolate variables.
NEXT STEPS
  • Review the principles of energy conservation in physics.
  • Study the derivation and application of the kinetic energy formula K = 1/2mv^2.
  • Explore gravitational potential energy calculations using U = mgh.
  • Practice solving problems involving friction and energy conservation in various scenarios.
USEFUL FOR

Students studying physics, educators teaching energy conservation principles, and anyone interested in understanding the relationship between kinetic and potential energy in real-world applications.

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Homework Statement


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Homework Equations


E = K + U
K = 1/2mv^2
u = mgh


The Attempt at a Solution


Sorry if it's hard to read:
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All looks good until the last step. You should not have a v in the answer, just m, g and R.
 

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