Relative Velocity : WHY IRODOV & HC Verma Disagree which Book is Correct
Загружено: 2025-11-25
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In this video, I analyze a fascinating conceptual difference between two classic physics sources: I.E. Irodov and H.C. Verma, both involving conservation of momentum and relative velocity.
At first glance, the problems seem identical — two men on a stationary buggy / railway car, each jumping off with the same horizontal speed U.
But the books treat the reference velocity completely differently:
• Irodov takes U relative to the buggy AFTER the jump
• H.C. Verma takes U relative to the car BEFORE the jump
This leads to different momentum equations — and a major conceptual confusion among students.
In this video, I demonstrate why Irodov’s interpretation is physically correct, and how misunderstanding reference frames leads to errors. I walk step-by-step through the logic of:
✔ Correct use of conservation of momentum
✔ What “velocity with respect to the buggy” truly means
✔ Why relative vs absolute velocity matters
✔ The correct final velocity of the car/buggy in both cases
This video will help you make conceptual clarity for JEE, Olympiad physics, and real physical reasoning — beyond formula memorization.
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