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Work And Energy — Science STD 9 — Question

Rajasthan BoardEnglish MediumSTD 9ScienceWork And Energy1 Mark
Question
A body at rest can have:
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Answer

  1. Potential Energy
Explanation:
A body at rest can have potential energy because PE is due to position of object but it does not have kinetic energy because KE is due to motion but object is at rest so no KE will be present.Momentum is also not present because momentum is due to velocity and velocity is zero in this case.
For example an object at a roof at rest have no KE but it has gravitational potential energy due to it's height above ground given by mgh.

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