A 0.2 kg ball is suspended by a thread of length 1 m. It is pulled aside until the thread makes an angle of 30° with the vertical. How much work is done against gravity. The ball is now released. Find its velocity at the lowest point. Ignore air resistance and take g = 10 m/s2

 Question : A 0.2 kg ball is suspended by a thread of length 1 m. It is pulled aside until the thread makes an angle of 30° with the vertical. How much work is done against gravity. The ball is now released. Find its velocity at the lowest point. Ignore air resistance and take g = 10 m/s2

Doubt by Mohini 

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