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Homework Statement
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?
Homework Equations
Tsin θ =mrw^2
Tcos θ = mg
where r=0.15 +0.12 sin θ
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.
Homework Statement
Homework Equations
The Attempt at a Solution
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