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JEE Main Physics question

PhysicsLaws of MotionJEE Main

Three equal weights A, B and C, each of mass 2 kg, are hanging on a string passing over a fixed frictionless pulley (A alone on one side; B and C connected in series, one below the other, on the other side). The tension in the string connecting weights B and C is (g = 10 ms⁻²)

Answer: (B)

Solution

The heavier side (B+C, total 4 kg) accelerates down against the lighter side (A, 2 kg): a = (4−2)(10)/(4+2) = 20/6 =

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Question ID VK-153340