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Class 9 Physics MCQs – Certification Test 689

Physics Classroom Trivia (Question 689) – App & e-Book Download

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MCQ 689: Two masses 4.5 kg and 3.8 kg are attached to the ends of an inextensible string passes over a frictionless pulley. Its acceleration when both masses are moving vertically will be equal to:

  1. 0.8 ms−2
  2. 0.5 ms−2
  3. 2 ms−2
  4. 1.5 ms−2

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