Please answer me the following question ---

To bring a body (of definite mass) into motion, it should have some acceleration. Hence, due to mass and acceleration it should have force in the direction of its motion. Now due to this force, an equal and opposite force should act on it according to newton's third law of motion. Therefore, due to two equal and opposite forces on the same body, it shouldn't move. Then, what is the reason behind that the body moves?

 

This reaction force acts on the external agency that is applying the force. So there is only  one extrnal force that is acting on the body, hence it will move. Always rememebr that action reaction forces donot act on teh same body.

Regards

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