Question

A satellite is revolving round the earth in an elliptical orbit. Its speed

• A. will be same at all points of the orbit
• B. will be different at different points of the orbit
• C. will be maximum at the farthest point
• D. will be minimum at the nearest point

Answer 1

The correct option is B will be different at different points of the orbit

From the above,

$f_c=f_g$

$\frac{m_s{v}^2}{r}=\frac{G{m}_e{m}_s}{r^2}$

$v=\sqrt{\frac{G{m}_e}{r}}$

$v\propto \sqrt{\frac{1}{r}}$

The speed of satellite will be different at different points of the orbit.

The correct option is B.