1. The problem statement, all variables and given/known data How does the airflow velocity vector get affected by temperature? 2. Relevant equations The equation given is airflow velocity vector is directly proportional to sq.rt of temperature.It says in a jet engine the velocity vector at the compressor rotor blade inlet increases proportionally to the sq.rt of compressor inlet temperature. This increased velocity vector coupled with constant engine rpm reduces the effective angle of attack of the rotor blades and thereby reduces its compression ratio. 3. The attempt at a solution I know that the mass flow rate thru an engine is inversely proportional to the sq.rt of the temperature but how does it cause to increase the airflow velocity vector.