Question

We are able to walk forward because _____.

Answer 1

Cuz Of Newton’s third law, every actions there is an equal and opposite reaction.

Answer 2

we are able to walk because of the forward and upward reaction force exerted by the earth on us.

when we walk, we push the earth backwards and downwards with our foot. We are able to do so because of the grip provided by the force of friction. The earth pushes us with an equal and opposite force as per third law of motion.Thus we are pushed by the earth in forward direction and we are able to walk.