A 480g falcon can reach high speeds near the ground after vertically diving from heights approaching 200m after starting with a zero (vertical) speed.  Like all other flyers, falcons do happen to generate drag, particularly during high-speed diving. Estimate the average drag generated after reaching a speed of 55m/s while vertically diving over the same height – and with the same weight above. (Here there is no wing flapping for propulsion).

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Static and Kinetic Friction

Kinetic friction comes into existence when there are moving surfaces means in other words we can say that the force which comes into existing between moving surfaces is known as kinetic friction.