Why is the work done by a porter carrying a load while walking on a flat, horizontal road considered zero?

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Physics · Work

Verified Solution4 OptionsUpdated: October 2026👁️1 View

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Correct answer

The force (upward) is perpendicular to the displacement (horizontal).

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Answer 1

The force of gravity is zero.

Answer 2

The displacement is zero.

Answer 3

The force (upward) is perpendicular to the displacement (horizontal).

Answer 4

The force (downward) is parallel to the displacement (horizontal).

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