OPSC OAS 2019 PrelimsScience & TechnologyQuestion 7
Solved previous year question from the OPSC OAS/OCS 2019 Preliminary Examination (General Studies), with the official answer key and a detailed explanation.
Question
When a body falls freely towards the earth, then its total energy:
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Answer & Explanation
Correct answer: (B) Remains same
- In free fall (ignoring air resistance), potential energy decreases while kinetic energy increases by the same amount, so the sum (total mechanical energy) stays constant
