Laws of Motion 1 Question 2

2. Statement I It is easier to pull a heavy object than to push it on a level ground.

Statement II The magnitude of frictional force depends on the nature of the two surfaces in contact.

(2008, 3M)

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Answer:

Correct Answer: 2. (b)

Solution:

  1. Both statements are correct. But statement II, does not explain correctly, statement I.

Explanation There is an increase in normal reaction when the object is pushed and there is a decrease in normal reaction when the object is pulled (but strictly not horizontally).



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