Thursday
October 23, 2014

Homework Help: Physics

Posted by Leah on Tuesday, November 17, 2009 at 6:23pm.

A pendulum consists of an object of mass m = 1 kg swinging on a massless string of length l = 258 cm. The object has a speed of 1.6 m/s when it passes through its lowest point. What is the greatest angle with the vertical that the string makes during the motion of the object?


So I tried doing this by calculating GPE = mgh
=-25.3
So does this mean KE = 25.3?
However I don't even use the velocity at the lowest point, I am extremely confused...help =S
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