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The runner's net force is 132 N

Force = mass x accelaration 
Here, force = 60 x 2.2 = 132 N

Answer:

132N

Explanation:

According to the Newton's second law which states that the rate of change in momentum of a body is directly proportional to the applied force and takes place in the direction of the force. Mathematically;

Force = mass×acceleration

F = ma

Given the mass of the runner = 60kg

Its acceleration = 2.2m/s²

The runners net force can be gotten using the formula above according to the Newton's second law.

Net force = 60× 2.2

Net force = 132N