3km /h a person drive and its velocity is 4m/s if its v is 6m/s and u is not define find the u

3km /h a person drive and its velocity is 4m/s if its v is 6m/s and u

1.	3km /h a person drive and its velocity is 4m/s if its v is 6m/s and u is not define find the u
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