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Applying a force of F =196 N upwards, a ...

Applying a force of F =196 N upwards, a body of mass 10 kg is raised up to a height of 10 m. Find the work done by the force F and the work done against gravity. Note that the work done by the force F is more than the gravitational potential energy . Show how the law of conservation of energy is still obeyed.

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The correct Answer is:
1960 J 980 J
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A body of mass 10 kg is raised to a height of 10 m with an upward force of 196 N . Find the work done by the upward force and the work done against gravitation. Show that the total energy in this case is equal ot the work done by the upward force . [g=9.8 m*s^(-2) ]

Knowledge Check

  • A container with a mass of 5 kg is lifted to a height of 8m. How much work is done by the gravitational force ? [g = 10 m_(-5)]

    A
    400 J
    B
    `-400 J`
    C
    zero
    D
    none of the above

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