it is observed that a vehicle which has a door at the rear side gathers more dust inside when moving at high speed on a dusty road with the door open thank the one which has an open door on the side. Explain this observation.

Question

It is observed that a vehicle which has a door at the rear side gathers more dust inside when moving at high speed on a dusty road with the door open than the one which has an open door on the side. Explain this observation 

Answer 1

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