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 train is moving with a uniform velocity of (2hat(i) - hat(j) + 4hat(

1.	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
Answer» 7 W 10 W 13 W 15 W Answer :C