Question

please answer really urgent

Answer 1

1. Friction acts more on a rough surface than the smooth surface.

2.

3. Because it is possible that there can be a constant force acting on an object to keep it in motion

4.do t know

5. Because air friction acts on it and due to the friction the heat of the meteoroid increases.

6. a. Speed of the object with respect to the fluid
b. Shape of the object
c. Size of the object
d. Nature of the fluid

7. Yes , it depends as if the surface is rough then the friction is more and if the surface is smooth then friction is less.