Answer:
Added energy to the television, E'' = 102.9 J
Explanation:
Given that,
Mass of the television, m = 15 kg
It is at a height of, h = 0.3 m
Potential energy at this height is given by :
E = m×g×h
[tex]E=15\times 9.8\times 0.3[/tex]
E = 44.1 J
When it is at a height of, h' = 1 m
Potential energy is given by :
E' = m×g×h
[tex]E'=15\times 9.8\times 1[/tex]
E' = 147 J
So, added potential energy is, E'' = E'-E
E'' = 147 J - 44.1 J
E'' = 102.9 J
So, 102.9 J of energy is added to the television. Hence, this is the required solution.
