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11 February, 00:48

4

An 80 kg skier stands at the top of a 40 meter slope. What is her gravitational potential energy

before she skies down the slope?

O 3200

O 31,360

19.63

O 15,680

+4
Answers (1)
  1. 11 February, 01:17
    0
    31,360J

    Explanation:

    Gravitation potential energy (gpe) is calculated from the formula mgh.

    That implies, gpe = mgh

    Therefore substituting the values of m and h as given in the question, knowing in mine that the acceleration due to gravity (g) is 9.8 N/kg, will give 31,360J

    Never forget to put your SI units, because even if your answer is numerical correct, it will be incorrect because it represents no physical quantity.
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