Question

If the value of g suddenly becomes twice its
value, it will become two times more
difficult to pull a heavy object along the
floor. Why?​

Answer 1

Explanation:

As the earth will pull it vertically downwards twice the force.

Answer 2

Explanation:

To pull an object along the floor, it is necessary to do work against the force of friction between the object and the surface of the floor. This force of friction is proportional to the weight, mg, of the object. If the value of g becomes twice its value, the weight of the object and hence the force of friction will become double. Therefore, it will become two times more difficult to pull a heavy object along the floor.

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