1 point Marlene sits in a roller coaster that is at the top of a 72 m hill. Marlene and the rollercoaster have a combined mass o

Question

1 point
Marlene sits in a roller coaster that is at the top of a 72 m hill. Marlene and
the rollercoaster have a combined mass of 120 kg. Calculate the energy.
829,785 J
311,080J
84,672 J
O 42,336 J

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Edana Edana 6 months 2021-08-27T21:17:25+00:00 1 Answers 2 views 0

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  1. King
    0
    2021-08-27T21:18:56+00:00
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    Answer:

    84672 J

    Explanation:

    From the question given above, the following data were obtained:

    Height (h) = 72 m

    Combined mass (m) = 120 Kg

    Acceleration due to gravity (g) = 9.8 m/s²

    Energy (E) =?

    We can obtain the energy by using the following formula:

    E = mgh

    Where

    E => is the energy.

    g => is the acceleration due to gravity

    m => is the mass.

    h => is the height.

    E = 120 × 9.8 × 72

    E = 84672 J

    Thus, the energy is 84672 J

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