14-12-2016
Physics

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Raindrops make an angle q with the vertical when viewed through a moving train window (Fig. 3-48). If the speed of the train is vt , what is the speed of the raindrops vd in the reference frame of the Earth in which they are assumed to fall vertically?

Raindrops make an angle q with the vertical when viewed through a moving train window Fig 348 If the speed of the train is vt what is the speed of the raindrops class=

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23-12-2016

If θ is the angle the rain makes with the vertical (from the train's reference frame),

tanθ = (velocity of train) / (velocity of raindrops in Earth frame)

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