Class 9 Physics MCQs (Grade 9) From Textbook
Download Torque or Moment of Force Quiz App | Class 9 Physics e-Book PDF
Class 9 Physics MCQs – Certification Test 16
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A nut has been tightened by a force of 180 N using an 8 cm long spanner. What length of a spanner is required to loosen the same nut with 150 N force
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