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Relative Velocity

When a man mo...

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When a man moves down the inclined plane with a constant speed 5m/s which makes an angle of 37^°with the horizontal ,he finds that the rain is falling vertically downwards. When he moves up the same inclined plane with a same speed, he finds that the rain makes an angle, tan- 1 (7/8)with the horizontal. How much the speed of the rain is?

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Q. When a man moves down the inclined plane with a constant speed

5 m s^{- 1}

which makes an angle of

37^{o}

with the horizontal, he finds that the rain is falling vertically downward. When he moves up the same inclined plane with the same speed, he finds that the rain makes an angle

θ = t a n^{- 1} (\frac{7}{8})

with the horizontal. The speed of the rain is

Q. When a man moves down an inclined plane with a constant speed

5 m/s

which makes an angle of

37^{\circ}

with the horizontal, he finds that the rain is falling vertically downwards. When he moves up the same inclined plane with the same speed, he finds that the rain makes an angle

θ = {tan}^{- 1} (\frac{7}{8})

with the horizontal. The speed of the rain with respect to the ground is

Q. When a man moves down an inclined plane with a constant speed

5 m/s

which makes an angle of

37^{\circ}

with the horizontal, he finds that the rain is falling vertically downwards. When he moves up the same inclined plane with the same speed, he finds that the rain makes an angle

θ = {tan}^{- 1} (\frac{7}{8})

with the horizontal. The speed of the rain with respect to the ground is

Q. A man running at a speed of

5 k m p h

find, that the rain falls vertically. When he stops running, he finds that the rain is falling at an angle of

60^{0}

with the horizontal. The velocity of rain with respect to running man is:

Q. A man walking with a speed of

3 k m / h

finds the rain drops falling vertically downwards. When the man increases his speed to

6 k m h^{- 1}

he find that the rain drops are falling making an angle of

30^{\circ}

with the vertical. Find the speed of the rain drops (in

k m / h)

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