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What percentage of the initial potential energy has been converted into heat instead of
kinetic energy?

What Percentage Of The Initial Potential Energy Has Been Converted Into Heat Instead Of Kinetic Energy class=

Sagot :

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The percentage of the initial potential energy that has been converted into heat is 18.07%.

What is potential energy?

Potential energy can be defined as the energy of a body due to its position in the gravitational field.

To calculate the percentage of the initial potential energy that has been converted into heat, we use the formula below.

Formula:

  • H(%) = [(P.E-K.E)/P.E]100............... Equation 1

Where:

  • H = Energy converted to heat
  • P.E = Potential energy
  • K.E = Kinetic energy.

But,

  • P.E = mgh........... Equation 2

From the diagram,

  • m = mass = 0.5 kg
  • h = 7 cm = 0.07 m
  • g = 9.8 m/s²

Substitute these values above into equation 2

  • P.E = (0.5×9.8×0.07)
  • P.E = 0.343 J

Also From the diagram,

  • K.E = 0.281 J.

Substitute these values into equation 1

  • H(%) = [(0.343-0.281)/0.343]100
  • H(%) = 18.07%.

Hence, the percentage of the initial potential energy that has been converted into heat is 18.07%.

Learn more about Potential energy here: https://brainly.com/question/1242059

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