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An aeroplane is flying with a uniform sp...

An aeroplane is flying with a uniform speed of 300 km/h along a circular path. The change in velocity after half the circular track is covered, is : given by

A

`300sqrt(2)` km/h

B

600 km/h

C

`600 sqrt(2)` km/h

D

300 km/h

Text Solution

Verified by Experts

The correct Answer is:
B
In half the circle, the plane reaches point B from point A. AB is diameter of circle.
Change in velocity `= vec(v) - (-vec(v))`

(Velocity acts along tangent to circle at the point)
`rArr Delta vec(v) = 2 vec(v) = 2 xx 300 = 600` km/h
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