Different Tensions Acting on a Weight

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SUMMARY

The discussion centers on calculating the tensions in two strings acting on a 1 kg mass in a physics problem. The tension before the horizontal string is cut (T1) is defined as T1 = Fg * Tan(θ), while the tension after the mass swings to an angle of 2θ (T2) is given by T2 = Fg / cos(θ). The gravitational force (Fg) is calculated as 9.81 N. The user expresses uncertainty about the correctness of these equations and seeks clarification on the forces and accelerations involved in both scenarios.

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Homework Statement



A 1 kg mass is hanging from a weightless string and is pulled by another weightless string to an angle of θ from the vertical. The string pulling on the weight is exactly perpendicular to Fg. When the horizontal string is cut, the weight swings 2θ. What is the tension (T1) in the string before the horizontal string is cut, and what is the tension (T2) in the string when the weight swings to 2θ?

Homework Equations



T1 = FgTanθ, T2 = Fg/cosθ

The Attempt at a Solution



T2 = 9.81N/cosθ
T1 = T2sinθ
 
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I don't think either of the equations is correct.
What are all the forces and accelerations in the two cases?
Which way will you resolve them to extract the equations?
 

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