Question

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

Explanation:

Step1: Analyze the situation

The bird is flying over the bus and there is no physical contact between them in the horizontal direction. In the vertical direction, the gravitational - force acts on both the bird and the bus, but there is no direct force interaction between the bird and the bus itself.

Step2: Consider force directions

There are no forces acting between the bird and the bus in the horizontal direction. In the vertical direction, the only forces acting on them are due to gravity pulling them towards the Earth, and there is no force of interaction between the bird and the bus. So the answer is that there are no forces acting between them in the horizontal and vertical directions in the sense of direct interaction.

Answer:

There are no forces acting between the bird and the bus (assuming no air - flow effects due to the bus's motion etc. which are not mentioned in the problem).