An aeroplane starting from a point travels towards north-east with a velocity of 400 kmph. Another aeroplane starting from the same point travels towards north west with a velocity of 300 kmph.The relative velocity of one aeroplane w.r.t. other is
100 kmph
200 kmph
350 kmph
500 kmph
A
350 kmph
B
100 kmph
C
200 kmph
D
500 kmph
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Solution
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relative velocity is = √160000+90000=500 The velocities will be 400 and 300 in perpendicular directions
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