Concept:Friction opposes motion. Rolling friction is the smallest, sliding friction is medium, and static friction is the largest among them.
Explanation:Compare the three types of friction for the same object.
Static friction prevents motion and is the strongest.
Sliding friction acts when an object slides and is weaker than static friction.
Rolling friction occurs when an object rolls and is the weakest of all.
Thus, rolling friction is always less than sliding friction. Sliding friction is always less than static friction.
Check each statement:
Option A says rolling friction is greater than sliding friction – this is false because rolling is weaker.
Option B says sliding friction is less than static friction – true.
Option C says static friction is greater than rolling friction – true.
Option D says sliding friction is greater than rolling friction – true.
Hence, only option A is incorrect.
Answer:The incorrect statement is: Rolling friction is greater than sliding friction (Option A).
