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                                    CALCULATION OF TENSION17. Amass M is suspended by a rope from a rigid support at A as shown in figure. Another rope is tiedatthe end B, and it is pulled horizontally with a force F. If the rope AB makes an angle 6 with the vertiin equilibrium, then the tension in the string AB is(1) F sin 6(2) F/sin θ(3) F cos θ(4) F/cos e | 
                            
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