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Two blocks P and Q are connected by a light inextensible string passing over a smooth pulley fixed as shown in the Figure. The coefficient of friction of blocks P and Q to the table is μ = 0.3; the mass of the block Q is 20 kg. The mass of the block P for the block just to slip is
  • a)
    48.6 kg
  • b)
    50.6 kg
  • c)
    52.4 kg
  • d)
    54.8 kg
Correct answer is option 'B'. Can you explain this answer?
Verified Answer
Two blocks P and Q are connected by a light inextensible string passin...
From F.B.D of P
N + T sin θ = mg ... (1)
T cos θ = fmax = μN ... (2)
From (1), N = mg − T sin θ ... (3)
From (2) and (3),
T cos θ = μ (mg − T sin θ)
T (cos θ + μ sin θ) = μ mg ... (4)
From F.B.D. of Q
T = 20 g ... (5)
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Two blocks P and Q are connected by a light inextensible string passing over a smooth pulley fixed as shown in the Figure. The coefficient of friction of blocks P and Q to the table is μ = 0.3; the mass of the block Q is 20 kg. The mass of the block P for the block just to slip isa)48.6 kgb)50.6 kgc)52.4 kgd)54.8 kgCorrect answer is option 'B'. Can you explain this answer? for JEE 2025 is part of JEE preparation. The Question and answers have been prepared according to the JEE exam syllabus. Information about Two blocks P and Q are connected by a light inextensible string passing over a smooth pulley fixed as shown in the Figure. The coefficient of friction of blocks P and Q to the table is μ = 0.3; the mass of the block Q is 20 kg. The mass of the block P for the block just to slip isa)48.6 kgb)50.6 kgc)52.4 kgd)54.8 kgCorrect answer is option 'B'. Can you explain this answer? covers all topics & solutions for JEE 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Two blocks P and Q are connected by a light inextensible string passing over a smooth pulley fixed as shown in the Figure. The coefficient of friction of blocks P and Q to the table is μ = 0.3; the mass of the block Q is 20 kg. The mass of the block P for the block just to slip isa)48.6 kgb)50.6 kgc)52.4 kgd)54.8 kgCorrect answer is option 'B'. Can you explain this answer?.
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