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A plane is revolving around the earth wi...

A plane is revolving around the earth with a speed of 100 km/hr at a constant height, above the surface of earth.The change in velocity as it travels half circle is

A

`200km//hr`

B

`150 km//hr`

C

`100 sqrt(2)km//hr`

D

`0`

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The correct Answer is:
A
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