Two objects A and B are pushed on a rough surface with the same force. The speed of object A is greater than that of B. Which of the following statements is true for the given scenario?

A experiences more frictional force than B.

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B experiences more frictional force than A.

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Both the objects will experience the same frictional force.

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Frictional force experienced by any of the two objects can be more at different instants of time.

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Solution

The correct option is B B experiences more frictional force than A.
Since it is given that the object B is heavier than object A, therefore, the thrust on the ground due to the weight of object B will be more than object A.

We know that as thrust increases, frictional force also increases. Therefore friction experienced by B will be more than A. This explains why B has a lower speed although the same amount of force was used to push the boxes.

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