Question

a bird flies over a bus. what is the correct relationship of forces acting between the bird and the bus?

Explanation:

Step1: Recall force - interaction concept

For two objects not in contact (bird and bus here), the only significant long - range force is gravitational force.

Step2: Identify gravitational force direction

Gravitational force is an attractive force. The direction of the gravitational force on the bird due to the bus is towards the bus, and the direction of the gravitational force on the bus due to the bird is towards the bird. This means the forces are along the vertical line connecting them and act in opposite directions.

Answer:

The second option (the one with vertical arrows pointing towards each other)