Calculating Tension: Forces and Vectors in a 1.8 kg Pendulum with 2.3 m String

[alynnaD]

A bob of mass 1.8 kg attached to a string of length 2.3 m. The pendulum is held at an angle of 30 degrees from the vertical by a horizontal string attached to a wall.

What is the tension in the horizontal string?

 

[kuruman]

Hi alynnaD and welcome to PF. Please follow the rules of this forum and use the template when you seek help with homework. Show us the relevant equations and tell us what you tried and what you think about the problem. We just don't give answers away.