Question : A person going towards east in a car with a velocity of 25kmh−1 , a train appears to move towards north with a velocity of 25√3 kmh −1 . The actual velocity of the train will be
(A) 25kmh^{-1}
(B) 50kmh^{-1}
(C) 5kmh^{-1}
(D) 35kmh^{-1}
Answer : option (B)
Solution :

