What is the power of a person when walking if in 2 hours he takes 10,000 steps

What is the power of a person when walking if in 2 hours he takes 10,000 steps And for each step he does 40 J of work?

Human power can be expressed by the formula:
N = An / t, where An is the complete work done by a person (An = A * n, where A is work in one step (A = 40 J), n is the number of steps (n = 10000)), t is the time of movement human (t = 2 h = 2 * 60 * 60 s = 7200 s).
Let’s calculate the power of a person:
N = An / t = A * n / t = 40 * 10000/7200 = 55.6 W
Answer: Human power is 55.6 watts.