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A system consists of three masses m₁, m₂ and m₃ connected by a string passing over a pulley P. The mass m₁ hangs freely and m₂ and m₃ are on a rough horizontal table (the coefficient of friction = μ). The pulley is frictionless and of negligible mass. The downward acceleration of mass m₁ is (Assume m₁=m₂=m₃=m)
Options
(a) g(1-gμ)/9
(b) 2gμ/3
(c) g(1-2μ)/3
(d) g(1-2μ)/2
Correct Answer:
g(1-2μ)/3
Explanation:
No explanation available. Be the first to write the explanation for this question by commenting below.
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Topics: Laws of Motion
(103)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- A beam of light of wavelength 590 nm is focussed by a converging lens of diameter
- A nuclear reaction is given as 4 ₁H¹→₂He⁴+₀e¹+energy Mention the type of reaction.
- A point charge is kept at the centre of a metallic insulated spherical shell. Then
- For transistor action (1) Base, emitter and collector regions should have similar size
- If a given volume of water in a 220V heater is boiled in 5 min, then same volume
Topics: Laws of Motion (103)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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