Question

But the earth is in motion , so what we can say about the walls of the classroom .

Answer 1

Answer:

The walls are at rest with respect to the Earth. When you are sitting in the classroom, you are also at rest with respect to the Earth, and so the walls do not seem to be moving to you.

The walls of a classroom are at rest when observed from its surroundings. At the morning wherever we find them they appear at the same place even in the afternoon. They are not motile. As they don't move,they are at rest.

Answer 2

Explanation:

The the walls at the rest with respect to the earth when you are sitting in the you are also at rest withrespect to the earth and so the walls do not seem to we moving to you

The walls of classroom are at rest when observed from its surrounding at the morning whenever we find them they appear at the same place even in the afternoon they are not motile as they don't move they are at rest