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A boy runs 40m toward east, then he walks 30m toward north. The body again runs 50m toward north by making angle 30° with east. What is his displacement (Ans: 99.8m bymaking angle 33.4°with east) |
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Answer» 68.00Explanation:NORTH: 30+50×sin30 =30+50×1/2 =30+25 =55East: 40Displacement:√{(40)^2+(55)^2} =√{1600+3025} =√4625 =68.00 |
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