Question
A construction worker needs to lift a heavy metal beam using a lever but has a limited length of plank. Which adjustment would allow the worker to lift the beam with the least effort if the position of the fulcrum can be changed but the plank length remains constant?
Asked in RRB JE CBT 2 (CMA) · 2026
Principle of Moments · Physics
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Gravitational potential energy near Earth is mgh.
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Questions Asked from Famous Discoveries, Laws & Nobel Prizes in Physics in Previous Exams
See how often Famous Discoveries, Laws & Nobel Prizes in Physics has appeared in previous-year questions across major government exams.
11UPSC Questions Asked in These Years:2011, 2012, 2013, 2015, 2017, 2018, 2019, 2020, 2021, 2022, 2026
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Famous Discoveries, Laws & Nobel Prizes in Physics has appeared in 44 previous-year exam questions, most frequently in State PSC, UPSC and SSC.
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