Question

For the moon to cease to remain the earth's satellite, its orbital velocity has to increase by a factor of
(1)2
(2) √2
(3) 1 2
(4) √3​

Answer 1

Answer:

The Orbital velocity has to increase by a factor of Root 2.

Option B

Explanation:

The satellite concept is based on something called escape velocity. The escape velocity of an object is that velocity with which of it starts moving, it can overcome the gravitational field of that particular body.

The escape velocity of earth is root 2 times the current velocity of the moon. So, if it increases by root 2 times the velocity at which its currently moving, then it can easily break away from the earth’s gravitational field.