STATEMENT-I:
It is easier to pull a heavy object than to push it on a level ground.
STATEMENT-2:
The magnitude of frictional force depends on the nature of the two surfaces in contact

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Statement-1 is True; Statement-2 is True; Statement-2 is a correct explanation for Statement-1

Statement-1 is True; Statement-2 is True; Statement-2 is NOT a correct explanation for Statement-1

Statement-1 is True, Statement-2 is False

Statement-1 is False; Statement-2 is True.

answer is B.

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Detailed Solution

In pulling case when force is applied at some angle to horizontal on a body then its vertical upward component reduces the normal reaction so limiting friction will be less in the case compared to the case of pushing because in case of pushing the vertical component of force increases the normal reaction On body and the limiting friction increases. So if is easier to pull a heavy object than to push so, statement-1is right and of friction force also depends on the nature of surface. Therefore statement-1 & statement-2 both are right & Statement-2 is not the correct explanation of statement-1.

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