Circular Motion - Pendulum Question .HELP

AI Thread Summary
The discussion revolves around a physics problem involving a pendulum with a length of 80.0 cm and a bob raised 20.0 cm. The key questions are to determine the speed of the bob at its lowest position and the tension in the pendulum cord. The answers provided are a speed of 1.98 m/s and a tension of 0.735 N. Participants are encouraged to focus on the relevant formulas to solve the problem, emphasizing the importance of understanding the current unit of study. The thread highlights the need for guidance in applying the correct physics principles to reach the solution.
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Circular Motion - Pendulum Question...HELP!

1. A pendulum 80.0 cm long is pulled to the side, so that its bob is raised 20.0 cm from its lowest position, and is then released. As the 50.0 g bob moves through its lowest position, (a) what is its speed and (b) what is the tension in the pedulum cord?



2.(a) what is its speed and (b) what is the tension in the pedulum cord?



3. Ans. (a) 1.98 m/s (b) 0.735 N
I think it is a two part question but I am drawing a total blank and can't figure out how to do this problem.
PLEASE HELP!
Thanks
 
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Can somebody please point me in the right direction...If someone can just give me the formulas I should be able to figure it out from there.
 


Try and think about this a bit more... What unit are you learning right now? That should give a clue on what to do.
 
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