Question: The answer is D but I don't know why? Please give me detailed explanation ty! TH 29. At the surface of Earth, an object is
The answer is D but I don't know why? Please give me detailed explanation ty!

TH 29. At the surface of Earth, an object is suspended by two cords. One cord is horizontal and one cord is D at an angle to the horizontal, as shown in the figure above. The tension in the horizontal cord is Ty . If the assembly is moved to the surface of a planet with the same average density and twice the radius of Earth, the new tension in the horizontal cord will be (A) TH/2 (B) TH/4 (C) TH (D) 2TH (E) 4TH
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