KEAM 2010 Physics and Chemistry Paper

Question : 35 of 119

Marks: +1, -0

An aeroplane flies around a square field ABCD of each side 1000‌km. Its speed along AB is 250kmh−1, along BC 500kmh−1, along CD 200kmh−1, and along DA 100kmh−1. Its average speed (in kmh−1 ) over the entire trip is