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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 sqrt(2)`

B

50

C

0

D

`25 sqrt(2)`

Text Solution

Verified by Experts

The correct Answer is:
C
`vec(V)_(1)=50 hat(j) rArr |vec(V)_(1)|=50`
`vec(V)_(2)=-50 hat(i) rArr |vec(V)_(2)|=50`
Change in magnitude of velocity
`=|vec(V)_(1)|-|vec(V)_(2)|=0`
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