Question

A box is being pushed over the ground with a force FA and the force of friction it faces is FB. Read

the assertion and the reason mentioned below carefully and choose the correct option that best

describes the relation between them: (1)

Assertion: if FA remains equal to FB then the box keeps moving with uniform velocity.

Reason: The two opposing forces are equal, then there will be no net forces acting on the box and

hence the forces remain balanced and cause no acceleration.

a) The assertion is correct but the reason is wrong

b) The reason is correct and the assertion is wrong

c) The assertion and reason are both correct, the reason explains the assertion.

d) The assertion and reason are both correct but the reason does not explain the assertion.​

Answer 1

Answer:

b) The reason is correct and the assertion is wrong.

Explanation:

We know that if the force applied on an object is equal to the force of friction, then the net force on it is 0. Hence it will not move.

According to the question, the assertion is wrong according to the statement above, and the reason qualifies the statement.

So, the assertion is wrong but the reason is correct.

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