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A motor car is going due north at a spee...

A motor car is going due north at a speed of 50 km/h.It makes a `90^(@)` left turn without changing the speed. The change in the velocity of the car is about :

A

50 km/h towards west

B

`50sqrt(2)` km/h towards south-west

C

70 km/h towards north-west

D

Zero

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The correct Answer is:
B
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