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6 February, 17:07

Compare the kinetic and potential energies of a 200 kg box being moved horizontally by a forklift at a speed of 5 m/s. The box is at a height of 1 m.

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  1. 6 February, 19:01
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    Given:

    mass of the box = 200kg

    velocity of the moving box = 5m/s

    height of the box = 1m

    Required:

    The comparison of the kinetic energy and potential energy

    Solution:

    Kinetic energy can be calculated using the formula:

    KE = 0.5 (mass) (velocity) ²

    KE = 0.5 (200kg) (5m/s) ²

    KE = 2500 Joules

    Potential energy can be calculated using the formula:

    PE = (mass) (gravity) (height)

    PE = (200kg) (9.8m/s²) (1m)

    PE = 1960 Joules

    At the given conditions, the kinetic energy is greater than the potential energy. This means that the total energy is spent to move horizontally rather than vertically.
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