NEETprep Helpline
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.
Radiusoftheloop,r=1km=1000mSpeedofaircraft,v=900km/h=900×518=250m/sCentripetalacceleration,ac=v2r=25021000=62.5m/s2Accelerationduetogravity,g=9.8m/s2acg=62.59.8=6.38ac=6.38g
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