An object of mass 1 kg has a potential energy of 1 joule relative to the ground when it is at a height of :
Given,
Mass m= 1 kg
Potential energy = 1 J
Height h=?
Let g = 9.8 ms-2
We know
Potential energy = m × g × h
Substituting the values in this formula
1 J = 1 kg× 9.8 ms-2 × h
h = 
h = 0.102 m
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