Question:
An aircraft executes a horizontal loop of radius 1.00 km with a steady speed of 900 km/h. Compare its centripetal acceleration with the acceleration due to gravity.
Answer:
Radius of the loop, r= 1 km = 1000 m
Speed of the aircraft, v= 900 km/h 
Centripetal acceleration, 
Acceleration due to gravity, g = 
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