A helicopter is flying south with a speed of $50 k m h^{- 1}$ . A train is moving at the same speed towards east. The relative velocity of the helicopter as seen by the passengers in the train will be towards

North east

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South east

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North west

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South west

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Solution

The correct option is D South west
Let directions be such that:
$N o r t h = j$
$E a s t = i$
$V_{c o p t e r} = - 50 j$
$V_{t r a i n} = 50 i$
Velocity of helicopter as seen by passengers on the train is:
$V_{c o p t e r} - V_{t r a i n} = - 50 i - 50 j$
Which is along South West direction.
Hence option D is correct.

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A helicopter is flying south with a speed of 50kmh−1. A train is moving at the same speed towards east. The relative velocity of the helicopter as seen by the passengers in the train will be towards

The correct option is D South westLet directions be such that:North=jEast=iVcopter=−50jVtrain=50iVelocity of helicopter as seen by passengers on the train is:Vcopter−Vtrain=−50i−50jWhich is along South West direction.Hence option D is correct.

A helicopter is flying south with a speed of $50 k m h^{- 1}$ . A train is moving at the same speed towards east. The relative velocity of the helicopter as seen by the passengers in the train will be towards