RRB Group D 15-Oct-2018 Shift 1 Solved Paper

Question : 17 of 84

Marks: +1, -0

Find the energy possessed by an object of mass

15 {kg}

when it is at a height of

5 {m}

above the ground Given

{g}=9.8 {ms}^{-2}

Solution:

Mass of the object

=15 { kg}

Height from the ground

=5 {m}

So,

{P.E}={mgh}=15 \×5 \×9.8

=735 {J}

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