Choose the incorrect statement from the follo | vedclass

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(D) According to Kepler's second law of planetary motion,a planet moves faster when it is closer to the sun and slower when it is farther away. Theref

Vedclass · Accepted Answer

The linear speed of a planet revolving around the sun remains constant.

Vedclass · Answer

(D) According to Kepler's second law of planetary motion,a planet moves faster when it is closer to the sun and slower when it is farther away. Therefore,the linear speed of a planet revolving around the sun in an elliptical orbit is not constant. Option $A$ is correct because the speed of a satellite in a circular orbit is given by $v = \sqrt{GM/r}$,which is constant for a fixed radius $r$. Option $B$ is correct because the total mechanical energy of a planet in an elliptical orbit is conserved. Option $C$ is correct because the mass of the earth is extremely large compared to any falling body,making its acceleration and displacement negligible. Thus,the incorrect statement is $D$.

Choose the incorrect statement from the following.

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