A train is moving with a uniform velocit...

A train is moving with a uniform velocity of `(2hat(i) - hat(j) + 4hat(k)) ms^(-1)`. If the force required to overcome friction is `(hat(i) - 3hat(i) + 2hat(k))` N, the power of the engine is

A

7 W

B

10 W

C

13 W

D

15 W

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Verified by Experts

The correct Answer is:

C

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