Physics
Grade-9
Easy
Question
Friction does not depend upon the ____.
- Area of contact
- Speed of the moving object
- Both a and b
- None of the above
Hint:
Friction is independent of the area of contact or speed of the moving object.
The correct answer is: Both a and b
Friction does not depend upon the area of contact or speed of the moving object. (both a and b).
- The friction depends on the roughness and smoothness of the surface.
- It does not depend on the area of contact or speed of the moving object.
- The friction on the rough surfaces will be more.
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