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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 microscope is having objective of focal length 1 cm and eye-piece of focal length 6 cm.
- In an inductor when current changes from 2 A to 18 A in 0.05 sec, the e.m.f. induced
- A tyre filled with air (27° C and 2 atm) bursts. The temperature of air is (ˠ=1.5)
- A thin and circular disc of mass M and radius R is rotating in a horizontal plane
- A polished metal plate has a rough and black-spot. It is heated to 1400 K
Topics: Laws of Motion (103)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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