MCQ
It is easier to roll a barrel than pull it along the road. This statement is
  • A
    False
  • True
  • C
    Uncertain
  • D
    Not possible

Answer

Correct option: B.
True
b
This phenomenon can be explained by the concept of friction.  It is easier to roll a barrel than to pull it on the road because while pulling the barrel because rolling friction is less than sliding friction

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