Answer :
Final answer:
The net external force on the Olympic runner can be calculated using Newton's second law of motion. By multiplying the runner's mass (67 kg) by their acceleration (4.9 m/s²), we find that the force is 328.3 N.
Explanation:
The question is about calculating the net external force on an Olympic runner.
The problem is tied to the concept of Newton's second law of motion, which states that the force applied to an object is equal to the mass of the object times its acceleration.
In this case, the runner has a mass of 67 kg and an acceleration of 4.9 m/s².
So, we calculate the force (F) using the formula F = m * a, where m is the mass and a is the acceleration.
Therefore, F = 67 kg * 4.9 m/s² = 328.3 N.
The net external force on the runner is therefore, 328.3 Newtons.
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