What can cause a faster-moving vehicle to suddenly swerve on a dry, straight road?

Your answer is correct because both gusts of wind and a tyre blow-out can cause a faster-moving vehicle to suddenly swerve, even on a dry, straight road. Gusts of wind create sudden lateral forces that can push the vehicle sideways, while a tyre blow-out causes an abrupt loss of control due to a sudden change in tire pressure or stability. Continuous head wind, on the other hand, generally applies force evenly and does not cause sudden swerving. Understanding these factors helps you anticipate and react appropriately to unexpected vehicle movements.