Question

Fill in the blanks:
The degree of roughness varies from............to............
The force of friction depends on the nature of.................in contact
3. The...................of static force is not constant.
The friction exerted when the wheels are in motion is the ............ friction.
5. Air exerts .................but lesser than that of liquids and..............​

Answer 1

Answer:

object, object

objects

friction

rolling

pressure, solid

Explanation:

Hope it helps you ☺️

Answer 2

Answer:

2 wala ka answer surface .