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Power is force times velocity times the cosine of the angle between the force vector and the velocity vector (i.e the "dot product", "scalar product", or "internal product" of the force and velocity vectors). We are not told the angle between the two vectors in this case, but if we assume that both are measured in the same direction, the angle between them is zero and its cosine is one.

P = F•v

= |F|*|v| * cos(θ)

= 700 N * 6m / 6 s * cos 0°

= 700 W

The power used is 700 Watts.

Power for the muscles is provided by organelles called "mitochondria". These must not be confused with midichlorians, nor with chloroplasts, for that matter.

Q: How much power do you use to walk up a hill 6 m in 6 s while exerting a force of 700N and What organelle is providing this power for your muscles?

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