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A motor car is going due north at a speed of 50 km/h. It makes a 90 degree left turn without changing the speed. The change in velocity of the car is about: 50 km/h towards west 70 km/h towards south-west 70 km/h towards north-west zero Need answer urgent

A motor car is going due north at a speed of 50 km/h. It makes a 90 degree left turn without changing the speed. The change in velocity of the car is about:
  1. 50 km/h towards west
  2. 70 km/h towards south-west
  3. 70 km/h towards north-west
  4. zero
Need answer urgent

Grade:12th pass

2 Answers

KiranHegade M U
16 Points
8 years ago
50 km/H towards west, the car was going in north direction then while turning 90 degree right it tells that it was then moving in the direction west, it is clear that the speed was not varied
Yogiraj
45 Points
8 years ago
The correct answer given is B. 70 km/h towards south west but how? I need explaination, so i posted the question

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