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CBSE Class 9 Answered

What is potential energy of an object if mass is 'm', g is 10m/s sq. but the h is 0?
Asked by | 03 Mar, 2012, 11:58: AM
answered-by-expert Expert Answer
Actually we can assume any value of PE at any point. As one can be confused after knowing that the value of PE at the earth level is assumedto be zero it is not absolutely zero. As if one dig a hole in the earth the body placed on the earth surface will go inside and again get some KE.iN CLASS11 IT IS EXPLAINED IN DETAIL.
Answered by | 03 Mar, 2012, 11:22: PM

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CBSE 9 - Physics
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