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A boy of mass 40 kg is hanging from a horizontal branch of a tree. The tension in his arms is minimum when the angle between the arms is1) 0°2) 90°3) 120°4) 180° |
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Answer» A boy of mass 40 kg is hanging from a horizontal branch of a tree. The tension in his arms is minimum when the angle between the arms is 1) 0° 2) 90° 3) 120° 4) 180° |
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