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Gravitational Force

which of the ...

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which of the following statement is correct about a satellite moving around a planet in circular orbit? (1) its time period is proportional to cube of radius (2) its linear momentum is conserved (3) its areal velocity is constant (4) its mechanical energy decreases

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Q. If the angular momentum of a planet of mass

m

, moving around the Sun in a circular orbit is

L

, about the centre of the Sun, its areal velocity is:

Q. The earth's satellite is moving round the earth in a circular orbit. Which of the following are true regarding the satellite?

1

. Its speed is constant

2

. Its velocity is constant

3

. Its angular momentum is constant

4

. Its gravitational pull is balanced by the centrifugal force

Q. A planet revolving in an elliptical orbit has :

A) .

a constant velocity of revolution.

B) .

the least velocity when it is nearest to the sun.

C) .

its areal velocity directly proportional to its velocity.

D) .

its areal velocity inversely proportional to its velocity.

E) .

a trajectory such that the areal velocity is constant.

Choose the correct statement from the options given below :

Q. A satellite of mass '

m

', moving around the earth in a circular orbit of radius

R

, has angular momentum

L

. The areal velocity of satellite is :

Angular momentum of a planet of mass m orbiting around sun is J, areal velocity of its radius vector will be

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