A 100gm bead is free to slide along a 0.8m long piece of string ABC. The ends of the string are attached to a vertical pole at A and C which are 0.4m apart. When the pole is rotated about its axis, BC becomes horizontal and equal to 0.3m.(adsbygoogle = window.adsbygoogle || []).push({});

(a) Find the tension in the string

(b) Find the speed of the bead at B.

I don't know where to start with this problem, could someone please help?

Thanks

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# Homework Help: Help with circular motion

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