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

200km/hr

150 km/hr

`100 sqrt2` km/hr

Text Solution

Verified by Experts

The correct Answer is:

`Delta v= v_(f)- v_(i)= - v hat(i) - v hat(i)`
`= -2v hat(i)= - 200 hat(i)`
Magnitude- `Delta v= 200km//h`

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