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The distance between centre of the earth...

The distance between centre of the earth and moon is 384000 km . If the mass of the earth is `6xx10^(24) kg` and `G=6.66xx10^(-11)Nm^(2)//kg^(2)`. The speed of the moon is nearly

A

1km/sec

B

4 km/sec

C

8 km/sec

D

11.2 km/sec

Text Solution

Verified by Experts

The correct Answer is:
A
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Knowledge Check

  • A satellite of mass 2000 kg is revolving around the earth in a circular orbit of radius 4xx10^(4) km. The gravitational force exerted by the satellite on the earth is ________. [Mass of the earth = 6xx10^(24)kg, G=6.67xx10^(-11)Nm^(2)//kg^(2) ]

    A
    `5xx10^(8)N`
    B
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    C
    `5xx10^(5)N`
    D
    `5xx10^(4)N`
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