Why it is difficult to open the door of the force applied is closer to the of the door
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Explanation:
Torque is applied while opening a door.. Torque is the product of force and perpendicular distance. As moving towards the handle of the door perpendicular distance increase and therefore the door can be opened with lesser value of force.
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We require less magnitudes of torque =r*F. For a given force F, the torque is less when the force is applied nearer to the hinge and it becomes more difficult to open door. That's why the door handles are provided at the edge of the door, to make torque as larger as possible with a given force.
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