Q17 of 23 Page 117

An apple falls from a tree. An insect in the apple finds that the earth is falling towards it with an acceleration g. Who exerts the force needed to accelerate the earth with this acceleration?

According to Newton’s law ‘every action has an equal reaction but in opposite direction’. Therefore the apple applies gravitational force on earth which is equal to the force applied

By the earth apple. But the acceleration of earth due to the force of apple is very small. It is negligible due to the large mass of the earth.


The figure below depicts the more.



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