Solved UPSC CDS/OTA Question
A solved UPSC CDS/OTA PYQ — decoded step-by-step.
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Q · Work, Energy and PowerMedium · 45s
A coolie carrying a load on his head and walking on a horizontal platform does no work against:
TopicWork, Energy and Power
Question Typemultiple choice
DifficultyMedium
Marking+1 / −0.33
Test Duration30 min
Step-by-Step Solution
The complete worked solution.
Every step explained — no skipped algebra.
No work is done against gravity because displacement is horizontal and the force of gravity is vertical (perpendicular).
Final Answer: Option A — Gravitational force