A train is moving with a uniform velocity of 2- -4k- ms-1- if the force required to overcome friction is - -3- -2k-N- the power of the engine is

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Power, Force and Velocity

A train is mo...

Question

A train is moving with a uniform velocity of $(2^i -^j + 4^k) m s^{- 1}$ . if the force required to overcome friction is $(^i - 3^j + 2^k) N$ , the power of the engine is

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