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OpenStudy (anonymous):
a ball falls 80 m free fall what is the final velocity
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OpenStudy (anonymous):
i know vi and a and y
OpenStudy (anonymous):
2as=v^2-u^2
OpenStudy (anonymous):
about 1600 m/s
OpenStudy (anonymous):
Vf= Under Root of 1600 i.e 40 m/s
OpenStudy (anonymous):
sorry 4 dat silly ..........actually my net had gone off vsquare = 1600 and v= 40......
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OpenStudy (ghazi):
velocity in free fall \[V= \sqrt {2gH}= \sqrt {2*10*80}=40m/s\]
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