Answer to Question #151559 in Physics for Rokawa

Question #151559

A force of 35 N is needed to keep a 5.0 kg body moving at a constant speed of 7.5 m/s. What power is needed to sustain the motion of the mass?

Expert's answer

By the definition of the power, we have:

"P=Fv=35\\ N\\cdot 7.5\\ \\dfrac{m}{s}=262.5\\ W."

Answer:

"P=262.5\\ W."

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