Question

A satellite is moving in a circular orbit round the earth. If gravitational pull suddenly disappears,then it

• A. Continuous to move with the same speed along the same path
• B. Moves with the same velocity tangential to original orbit.
• C. Falls down with increasing velocity.
• D. Comes to rest after moving certain distance along original path.

Answer 1

The correct option is B Moves with the same velocity tangential to original orbit.

when a satellite is moving in a circular orbit round to earth gravitational force acts on a satellite along the radial direction of (along the radius of circular pat) and its value is $\frac{m{v}_0^2}{R}$ that keeps the body revolving on a circular path of radius $R$ when gravitational pull is suddenly disappears then it move along the straight line which is tangent to that point.

Ans:- (B)