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Gravitation — Physics STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 SciencePhysicsGravitation2 Marks
Question
The earth is acted upon by the gravitational attraction of the sun. Why don't the earth fall into the sun?
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Answer

The earth is orbiting round the sun in a stable orbit (nearly circular) such that the gravitational attraction of the sun just provides the required centripetal force to the earth for its orbital motion. So, net force on the earth is zero and consequently, the earth does not fall into the sun.

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