A truck travelling due North at 50 km h...

A truck travelling due North at ` 50 km h^(-1)` turns West and travels at the same speed. What is the change in velocity ?

A

50 km/hr north-west

B

`50sqrt(2)` km/hr north-west

C

50 km/hr south- west

D

`50sqrt(2)` km/hr south-west

Text Solution

Verified by Experts

The correct Answer is:

D

`|Deltavecv| = sqrt(v_(1)^(2) + v_(2)^(2))= sqrt((50)^(2) + (50)^(2))= 50sqrt(2) km//hr`

The direction of `Deltavecv` is along south-west, as shown in Fig. 3.66.

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