give the mathematical relation between power force and energy
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It is sometimes convenient to express power in terms of constant force (F) acting on an object moving at constant velocity “V”. Power is the dot product of force and velocity. It is a scalar quantity. The SI unit of power is watt which is defined as “One joule of work done in one second.”
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In the straightforward cases where a constant force moves an object at constant velocity, the power is just P = Fv. ... In a more general case where the velocity is not in the same direction as the force, then the scalar product of force and velocity must be used
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