To understand how to apply the law of conservation of energy to situations with

Question

To understand how to apply the law of conservation of energy to situations with and without nonconservative forces acting Part B The law of conservation of energy states the following In an isolated system the total energy remains constant. If the objects within the system interact through gravitational and elastic forces only, then the total mechanical energy is conserved. Suppose the potential energy of the block at the table is given by mgh/3. This implies that the chosen zero level of potential energy is Hints The mechanical energy of a system is defined as the sum of kinetic energy K and potential energy U. For such systems where no forces other than the gravitational and elastic forces do work, the law of conservation of energy can be written as a distance h/3 above the floor a distance h/3 below the floor O a distance 2h/3 above the floor O a distance 2h/3 below the floor Figure 1 of 1 on the floor Submit My Answers Give Up Part C This question will be shown after you complete previous question(s). Part D This question will be shown after you complete previous question(s).

Explanation / Answer

mass is at height h above the floor

now PE = mgh/3

=> above zero level of PE mass is at h/3 height

=> zero PE level is at 2h/3 above the floor. OPTION(C)

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