Question

at what condition action and reaction cancel each other?​

Answer 1

Equal and Opposite but Not Balanced

Balanced forces are equal and opposite forces that act on the same object. That's why they cancel out. Action-reaction forces are equal and opposite forces that act on different objects, so they don't cancel out.

Explanation:

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Answer 2

Answer:

Equal and Opposite but Not Balanced

Balanced forces are equal and opposite forces that act on the same object. That's why they cancel out. Action-reaction forces are equal and opposite forces that act on different objects, so they don't cancel out.