4.18 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.

 

NEETprep Answer:

Radius of the loop, r=1km=1000 m
Speed of aircraft, v=900 km/h
=900 × 518 = 250 m/s
Centripetal acceleration,  ac = v2r
= 25021000 = 62.5 m/s2
Acceleration due to gravity, g = 9.8 m/s2
acg = 62.59.8 = 6.38
ac = 6.38 g