(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

Part c: A pendulum is attached to a 0.15m wooden bar sticked horizontally to a table by a string of 0.12m. If the system is revolved with a revolution speed of 1.5 rev per second, what is the angle θ the pendulum make with respect to the vertical axis?

2. Relevant equations

Tsin θ =mrw^2

Tcos θ = mg

where r=0.15 +0.12 sin θ

3. The attempt at a solution

To identify my mistake at how to solve this question as I can't get the answer provided which is 85.7 degree using my original equation. Instead, i get a value of 209 degree which sounded so impossible to occur.

Thanks for help.

1. The problem statement, all variables and given/known data

2. Relevant equations

3. The attempt at a solution

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# Rotating pendulum hang from a wooden bar with a revolution speed of 0.15 rev/s.

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