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Apurv
Questions (1)
A man can swim at a speed of 3km/hr in still water. He wants to cross a 500m wide river flowing at 2km/hr. He keeps himself
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Answers (2)
So we solve.... s=ut - 1/2gt^2..... put t=2, s=-25.2m After obtaining the value of u...using 1st eqn of motion... v=u-gt Then v is ur required answer
Displacement should be in negative... as the ball thrown vertically downward.....
