Question

Name the couple acting, when we open a door.

Answer 1

When you try to open your door actually you apply some force to the door’s handle due to this an momentum will be developed in the handle which is capable of opening the door. For example if you try to apply the same force in the center of the door then it will be very hard to open the door this is because the momentum developed there is less than the one developed in the handle position of the door. Also when the door is opened the centrifugal force will be generated at the hinged part of the door so that it will move in a circular path and let the door open…..

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