A sprinter with a mass of 70 kg accelerates at a rate of 5 m/s2. What force is the sprinter exerting?

To calculate the force exerted by the sprinter, we can use Newton's second law of motion, which states that force (F) is equal to the mass (m) of an object multiplied by its acceleration (a).

So, the force exerted by the sprinter can be calculated as:
F = m * a
F = 70 kg * 5 m/s^2
F = 350 N
Therefore, the sprinter is exerting a force of 350 Newtons.