Question

A satellite is revolving around earth in a circular orbit at a uniform speed v. If gravitational force suddenly disappears speed of the satellite will be

• A. Zero
• B. V
• C. Vc
• D. Infinity

Answer 1

The correct option is B V

The satellite is revolving around the earth at a constant speed and the gravitational pull from the earth is providing the centripetal force to the satellite which helps the satellite to move in the circle$.$ this force has no effect on the speed's magnitude$.$

hence$,$ if wthe earth disappears then the satellite will still move with the same speed ${}^{\prime }{V}^{\prime }$ but this time it will mob\ve in a straight line$.$

Hence,

option $\left(b\right)$is correct answer.