Q. A motor car is going due north at a speed of 50 km/h. It makes a 90degree left turn without changing the speed . The change in the velocity of the car is about ? (H C Verma Ch 3 pg 49)
My query is that the answer given in the book i.e. 70 km/hr towards south-west but why the answer is not 50 km/hr towards west ?
