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15 April, 12:59

Calculate the potential energy of a 20-kg sled at 40 meters

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Answers (2)
  1. 15 April, 13:33
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    The above answer is correct however gravitational potential energy is measured in joules. So the final answer would be 7840 J (joules) not newton's.
  2. 15 April, 14:07
    0
    Answer: 7840N

    Explanation:

    Given that

    Potential energy = ?

    Mass of sled = 20-kg

    Distance = 40 meters

    Acceleration due to gravity = 9.8m/s^2

    Recall that potential energy is the energy possessed by a body at rest

    i. e potential energy = mass m x acceleration due to gravity g x distance h

    P. E = mgh

    P. E = 20kg x 9.8m/s^2 x 40m

    P. E = 7840N

    Thus, the potential energy of the sled is 7840N
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