Neglecting friction，you desire to lift a 300 kgs weight with a stress on the hauling part of 100 kgs.Which of the following tackles would you use?（）.<br>A:Gun tackle<br>B:Luff tackle<br>C:Two-fold tackle<br>D:Double-luff tackle

Neglecting friction，you desire to lift a 300 kgs weight with a stress on the hauling part of 100 kgs.Which of the following tackles would you use?（）.
A:Gun tackle
B:Luff tackle
C:Two-fold tackle
D:Double-luff tackle

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