Explain why, a runner presses the ground with his feet before he starts his run
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according to Newton's Law of Motion for every action there is an equal and opposite reaction .when runner push the ground the ground also push the runner with an equal and opposite force which he utilizes to run fast.
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Using the Newtons's third law of motion - "For every action there in an equal and opposite reaction". The runner presses the ground with his feet before he starts his run in turn the ground deploy a reaction force on the runner in the forward direction to help him run.
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