Question
A body of mass 4 kg has a kinetic energy of 72 J. Its speed is:
Asked in RRB ALP CBT 1 · 2026
Energy · Physics
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Kinetic energy is ½mv², so doubling speed makes it four times larger.
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Questions Asked from Kinetic & Potential Energy: Meaning & Formulas in Previous Exams
See how often Kinetic & Potential Energy: Meaning & Formulas has appeared in previous-year questions across major government exams.
11UPSC Questions Asked in These Years:2010, 2011, 2012, 2014, 2017, 2020, 2021, 2022, 2023, 2024, 2026
9SSC Questions Asked in These Years:2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024, 2025
7Railways Questions Asked in These Years:2016, 2018, 2021, 2022, 2024, 2025, 2026
15State PSC Questions Asked in These Years:2002, 2004, 2012, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024, 2025
Kinetic & Potential Energy: Meaning & Formulas has appeared in 42 previous-year exam questions, most frequently in State PSC, UPSC and SSC.
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