River is flowing with a velocity V¯=4i¯ ms−1 . A boat is moving with a velocity V¯BR=(2i¯+4j¯)ms−1 relative to water. The width of river is 100m along y-direction. The drift of boat is
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a
100 m
b
50 m
c
25 m
d
150 m
answer is D.
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Detailed Solution
V−BR=V−Bg−V−Rg Time of crossing =1004=25 SDrift =6×25=150m