Why Can a Mosquito Suspended in the Car Keep Up with the Vehicle's Speed?

[GageFitz]

A mosquito suspended in the car can keep up with the vehicle's speed due to inertia. The car's speed carries all items inside, making everything in the car move at the same speed as the vehicle. Explanation One: If the mosquito is initially suspended in the air and the car starts accelerating from rest, without air, the mosquito would not move with the car and would collide because nothing affects the mosquito. With air present, the car moves the air along with it, and the air acts on the mosquito, causing it to move. On a high-speed train, the air is relatively stationary to the train, allowing the mosquito to remain suspended in the air. Explanation Two: In this scenario, the car, air, and mosquito are in the same inertial frame. From another perspective, if the car were like a large tube without a front or back, even if the car were moving fast and the air remained still, the mosquito would still not move with the car. The air plays a crucial role.