Physics

Physics

Problem

A uniform bar is pivoted at its left end. Four equal-magnitude forces act simultaneously as follows: 1. FF at 0.10 m0.10\,\text{m} making 90∘90^{\circ} with the bar 2. FF at 0.20 m0.20\,\text{m} making 45∘45^{\circ} with the bar 3. FF at 0.30 m0.30\,\text{m} along the bar 4. FF at 0.40 m0.40\,\text{m} making 30∘30^{\circ} with the bar Rank the torques produced (largest to smallest). a) 1>2>4>31>2>4>3 b) 4>3>2>14>3>2>1 c) 4>2>1>34>2>1>3 d) 3>4>2>13>4>2>1

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