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Raindrops are falling with velocity 10 s...

Raindrops are falling with velocity `10 sqrt2` m/s making and angle `45^(@)` with the vertical. The drops appear to be falling vertically to a man running with constant velocity . The velocity of rain drops change such that the rain drops now appear to be falling vertically with `sqrt3` times the velcoity it appeared earlier to the same person running with same velocity .
After the velocity of rain drops change the magnitude of velocity of raindrops with respect to ground is

A

`20sqrt3 m//s `

B

10 m/s

C

`10 sqrt3 m//s`

D

20 m/s

Text Solution

Verified by Experts

The correct Answer is:
D
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Knowledge Check

  • Raindrops are falling with velocity 10 sqrt2 m/s making and angle 45^(@) with the vertical. The drops appear to be falling vertically to a man running with constant velocity . The velocity of rain drops change such that the rain drops now appear to be falling vertically with sqrt3 times the velcoity it appeared earlier to the same person running with same velocity . The magnitude of velocity of man w.r.t ground is

    A
    `10sqrt2 m//s`
    B
    ` 10sqrt3 m//s`
    C
    10 m/s
    D
    20 m/s

  • Raindrops are falling with velocity 10 sqrt2 m/s making and angle 45^(@) with the vertical. The drops appear to be falling vertically to a man running with constant velocity . The velocity of rain drops change such that the rain drops now appear to be falling vertically with sqrt3 times the velcoity it appeared earlier to the same person running with same velocity . The angle ( in degrees) between the initial and final velocity of rain drops with respect to ground.

    A
    `15^(@)`
    B
    `8^(@)`
    C
    `22.5 ^(@)`
    D
    `37^(@)`

  • Rain drops fall with terminal velocity due to

    A
    buoyancy
    B
    viscosity
    C
    low weight
    D
    surface tension

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