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Two parts of a sailing boat are the mast and the boom. The mast is a vertical rigid beam and the boom is a horizontal rigid beam. One end of the boom is attached to the mast by a pivot. The other end of the boom is connected to the mast by a rope, as shown.

The rope is at an angle of $40^\circ$ to the horizontal and exerts a tension force $T$ on the boom. The weight of the boom is $200 N$. The mass of the boom is uniformly distributed along its length. The boom is in equilibrium.

What is the magnitude of $T$?

1 ) 

$130 N$

2 ) 

$160 N$

3 ) 

$260 N$

4 ) 

$310 N$

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