Kepler discovered
Laws of motion
Laws of rotational motion
Laws of planetory motion
Laws of curvilinear motion
Consider a planet moving around a star in an elliptical orbit with period $T$. The area of the elliptical orbit is proportional to ...........
The motion of planets in the solar system is an example of the conservation of
Which of the following statements is true for the planets orbiting around the sun ?
During motion of a planet from perihelion to aphelion the work done by gravitational force of sun on it is ...........
The time period of a satellite in a circular orbit of radius $R$ is $T$. The period of another satellite in a circular orbit of radius $9 R$ is............ $T$