A pendulum has a mass of 3-kg, a length of 2 meters and swings through a (half)arc of 21.4 degrees. What is its Amplitude to the nearest centimeter ?(adsbygoogle = window.adsbygoogle || []).push({});

i don't undretand the queston; half arc? amplitude?

and how would you use kinetic/potential energy change to solve this porblem? i really don't understand this qusetion i'd really likea couple of hints and tips for this problem thanks a lot

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# Pendulum question

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