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11 Feb 2012

about mechanical force

what is easier to pull a stationary thing or to push it? whereas the ideal conditions are considered such as friction is same for both.
12 Feb 2012
You are right that the friction forces are same. So it should not matter whether you push or pull provided the force is applied parallel to the surface on which the object rests.
However, usually pushing involves a downward direction, which adds to the force. Pulling is rather upward, which involves a reduction in apparent weight. So pulling FEELS easier.
What should be done is to resolve the forces at the point of application and find out the force parallel to the surface.

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