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Energy conservation

3 PYQ across 3 exams · 2015–2024 — the complete chronological timeline of how UPSC has tested this idea, oldest to newest.

CDS 2015 → GEO 2021 → NDA 2024
20151 PYQ
CDSQ35
An object is raised to a height of 3 m from the ground. It is then allowed to fall on to a table 1 m high from ground level. In this context…
20211 PYQ
GEOQ69
A stone of mass 1 kg and initially at rest is dropped from a tower of height 40 m. When it reaches a height of 10 m from the ground level, w…
20241 PYQ
NDAQ97
There is a ball of mass 320 g. It has 625 J potential energy when released freely from a height. The speed with which it will hit the ground…
Related concepts — explore their timelines too
Potential energyKinetic energy
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