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.
Given:
Radius of the horizontal loop = r = 1 km = 1000m
Speed of the aircraft = v = 900 km/hr
= 250 m/s
= 62.5 m/s2
Acceleration due to gravity = g= 9.8 m/s2
ac/g = 62.5/9.8 = 6.38
Ratio of centripetal acceleration and acceleration due to gravity is 6.38.