Statement 1 It is easier to pull a heavy object than to push it on a level ground. and Statement 2 The magnitude of frictional force depends on the nature of the two surfaces in contact.

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Aicharya · Accepted Answer

Both statements are correct. But statement-2, does not explain correctly, statement- 1 . Correct explanation is : "There is increase in nomal reaction when the object is pushed and there is decrease in normal reaction when the object is pulled (but strictly not horizontally). ^ Alternative Solution: Sure, let's break it down: Statement 1: It is easier to pull a heavy object than to push it on a level ground. This statement is generally true. When we pull an object, we apply an upward force that can slightly decrease the normal force, and hence the friction. On the other hand, when we push, we apply a downwards force which can increase the normal force and hence the friction. Statement 2: The magnitude of frictional force depends on the nature of the two surfaces in contact. This statement is also true. The frictional force between two surfaces depends on the nature of the surfaces in contact and the normal force. This is given by the equation $F = \mu N$, where $F$ is the frictional force, $\mu$ is the coefficient of friction (which depends on the nature of the surfaces), and $N$ is the normal force. However, statement 2 is not a correct explanation for statement 1. Statement 1 is more about the direction of the applied force (pulling or pushing) which can slightly alter the normal force and hence the friction. While statement 2 is correct that friction depends on the nature of surfaces and normal force, it doesn't explain why pulling might be easier than pushing. So, the correct answer is 'B': Statement 1 is true, Statement 2 is true, Statement 2 is not a correct explanation for Statement 1.

Statement 1 It is easier to pull a heavy object than to push it on a level ground. and Statement 2 The…

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