Physics
shrookwage
18

a 15 kg tv sots on a shelf at a height of 0.3 m. how much gravitational potential energy is added to the television when it is lifted to a shelf of height 1.0 m?

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(1) Answers
schellin000

Gravitational potential energy can be described as m*g*h (mass times gravity times height). Originally, 15kg * 9.8m/s^2 *0.3 m = 44.1 kg*m^2/s^2 = 44.1 Joules. After it is moved to a 1m shelf: 15kg * 9.8m/s * 1 = 147 kg*m^2/s^2= 147 Joules. To find how much energy was added, we subtract final energy from initial energy: 147 J - 44.1 J = 102.9 Joules.

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