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A man of mass M jumps from rest, straigh...

A man of mass M jumps from rest, straight up, from a flat concrete surface. Centre of mass of the man rises a distance h at the highest point of the motion. Find the work done by the normal contact force (between the man’s feet and the concrete floor) on the man.

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The correct Answer is:
zero
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Knowledge Check

  • A man starts walking from a point on the surface of earth (assumed smooth ) and reaches diagonally opposite point . What is the work done by him.

    A
    Zero
    B
    Positive
    C
    Negative
    D
    Nothing can be said

  • A man starts walking from a point on the surface of earth (assumed smooth) and reaches diagonally opposite point. What is the work done by him

    A
    zero
    B
    positive
    C
    negative
    D
    Nothing can be said

  • A man starts walking from a point on the surface of earth (assumed smooth) and reaches diagonally opposite point. What is the work done by him

    A
    Zero
    B
    Positive
    C
    Negative
    D
    Nothing can be said

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