A horizontal bar of length l and negligible mass is supported at its two ends. A mass M…
Physics · JEE Advanced · NTA Exams — Rotational Motion
A horizontal bar of length l and negligible mass is supported at its two ends. A mass M is hung from the bar at a distance ‘a’ from the left end, as shown. What is the magnitude of the force that the support on the right applies to the bar?
- \(\operatorname{Mg} \frac{a}{\ell}\)
- \(\operatorname{Mg} \frac{\ell}{a}\)
- \(M g \frac{a}{\ell+a}\)
- \(M g \frac{\ell}{\ell+a}\)
Answer
(A) Mg a
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