Question

an aeroplane revolves in horizontal circle above the surface of earth with uniform speed of 100km/hr.Then what is the change in velocity in km/hr after completing half rotation?

Answer 1

The initial velocity of the plane is 100km/h in the upward direction.

The plane completes the half a circle and positioning downwards taken in the right circular path.

Then, it is consider after plane finishes a large portion of a circle. It will point towards downside and change in velocity can be determined as 150km/h.

Answer 2

This is the answer of a question .