What formula would I use to solve for a and b?(adsbygoogle = window.adsbygoogle || []).push({});

A 0.20-kg ball is held at rest 2.2 m above the ground, and then it is dropped. Apply the law of conservation of energy to determine the ball's speed after it has fallen (a) 1.1 m and (b) 2.2 m. Ignore air resistance.

Answers

(a)4.6 m/s

(b) 6.6 m/s

So How would I get these answers?

Thanks

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# Apply the law of conservation of energy to determine the ball's speed

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