Question

If the value of g suddenly became twice its value it will became two times more difficult to pull a heavy object along the floor why?

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Answer 1

Answer:

This force of friction is proportional to the weight, mg, of the object. It the value of g becomes twice its value, the weight of the object and hence the force of fricition will become double. Therefore, it will become two times more difficult to pull a heavy object along the floor.

Answer 2

to pull an object along the floor it is necessary to do work against the the force of friction between the the object and the the surface of the floor the force of friction is proportional to the weight MQ of the object if the value of of g became twice its value weight of the object and hence the force of friction will became double therefore it will become 2 times more difficult to pull a heavy object along the floor