## anonymous 4 years ago a ball falls 80 m free fall what is the final velocity

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1. anonymous

i know vi and a and y

2. anonymous

2as=v^2-u^2

3. anonymous

4. anonymous

Vf= Under Root of 1600 i.e 40 m/s

5. anonymous

sorry 4 dat silly ..........actually my net had gone off vsquare = 1600 and v= 40......

6. Ghazi

velocity in free fall $V= \sqrt {2gH}= \sqrt {2*10*80}=40m/s$