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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
- The temperature coefficient of the resistance of a wire is 0.00125 per ⁰C.
- If F⃗ is the force acting on a particle having position vector r⃗ and ? ⃗ be the torque
- The frequencies of X-rays,γ-rays and ultraviolet rays are respectively p,q and r
- The voltage gain of an amplifier with 9% negative feedback is 10. The voltage gain
- A bar magnet has a coercivity of 4×10³ Am⁻¹. It is placed inside a solenoid
Topics: Laws of Motion (103)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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