MCQ
A person carries a weight on his head for distance r. He has to do maximum work. When he takes the object:
  • A
    Moves on a rough horizontal surface
  • B
    Moves on a smooth horizontal surface
  • Moves up on a vertical plane
  • D
    Walks on an inclined plane.

Answer

Correct option: C.
Moves up on a vertical plane
C

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