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Question
A helicopter is flying south with a speed of 50 kmh−1. A train is moving with the same speed towards east. The relative velocity of the helicopter as seen by the passengers in the train will be 50√2 kmh−1 towards
A helicopter is flying south with a speed of 50 kmh−1. A train is moving with the same speed towards east. The relative velocity of the helicopter as seen by the passengers in the train will be 50√2 kmh−1 towards
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Solution
The correct option is C southwest
VHelicopter,Train=VHelicopter−VTrain=−50^k−50^i (Assume north as +^k and east as +^i)
Thus, direction is given as tan−1(−50−50), thus it is 45o with vertical in 3rd quadrant (x and y both negative), thus direction is Southwest.
VHelicopter,Train=VHelicopter−VTrain=−50^k−50^i (Assume north as +^k and east as +^i)
Thus, direction is given as tan−1(−50−50), thus it is 45o with vertical in 3rd quadrant (x and y both negative), thus direction is Southwest.
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