Question

A satellite of mass m is circulating around the earth with constant angular velocity. If radius of the orbit is $R_o$ and mass of the earth M, the angular momentum about the centre of the earth is

• A.
• B.
• C.
• D.

Answer 1

The correct option is A

Angular momentum = Mass $\times$ Orbital velocity $\times$ Radius
$=m\times \left(\sqrt{\frac{GM}{R_o}}\right)\times R_o=m\sqrt{GM{R}_o}$