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In planetary motion the areal velocity o...

In planetary motion the areal velocity of possition vector of a planet depends of angular velocity `(omega)` and the distance of the planet from sun (r). If so the correct relation for areal velocity is

A

`(dA)/(dt) prop omega r`

B

`(dA)/(dt) prop omega^(2) r`

C

`(dA)/(dt) prop omegar^(2)`

D

`(dA)/(dt)prop sqrt(omega r)`

Text Solution

Verified by Experts

The correct Answer is:
C

`(dA)/(dt)=L/(2m)implies(dA)/(dt)prop vr prop omegar^(2)`
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Knowledge Check

  • The escape velocity for a body projected from a planet depends on

    A
    mass of the body
    B
    angle of projection
    C
    mass of the planet
    D
    radius of the body
  • In a uniform circular motion , the velocity, position vector and angular velocity are

    A
    parallel to each other
    B
    mutually prependicular to each other
    C
    they are co-planer
    D
    the angle between them is `45^(@)`
  • Relation between Linear velocity (v) and Angular velocity (omega)

    A
    `v = r omega`
    B
    `omega = v omega`
    C
    `r = v omega`
    D
    `v = omega/r`
  • NARAYNA-GRAVITATION-EXERCISE -I (H.W.)
    1. In planetary motion the areal velocity of possition vector of a planet...

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    2. If a and b are the nearest and farthest distances of a planet from the...

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    3. A planet is revolving round the sun in an elliptical orbit, If v is th...

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    4. The period of a satellite in a circular orbit of radius R is T, the pe...

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    5. The period of revolution of an earth's satellite close to the surface ...

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    6. If a planet of mass m is revolving around the sun in a circular orbit ...

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    7. The period of revolution of a planet around the sun in a circular orbi...

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    8. A planet moves around the sun in an elliptical orbit. When earth is cl...

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    9. A planet of mass m is the elliptical orbit about the sun (mlt ltM("sun...

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    10. The gravitational force between two particles of masses m(1) and m(2) ...

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