The hinge system for the door of the future

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Everyone who has ever opened the door has an intuitive understanding of torque. When a person opens the door, they push the farthest side from the hinge from the door. Pushing the side closest to the hinge requires a considerable amount of force. In both cases the same work is done (because it takes a lot of force at small distances), but generally the position of the door handle is small, so I do not like to add force. Static torque is a torque that does not generate angular acceleration. People who push the door add static torque to the door as the door does not rotate around the hinges even when a force is applied to the door. People who step on the pedals at a constant speed do not accelerate, so apply a static torque

Torque is a force that exerts a certain distance from the rotation axis, the easiest way to consider torque is to consider the door. Where do you press when you open the door? Even when a force is applied to the hinge, the door does not move so the easiest way to open the door is to apply force to the door on the other side of the hinge and push or pull it with the force perpendicular to the door. This will maximize the torque you add. I explain the torque equation in a slightly different way from this book. Please note that the torque symbol is Greek letter tau. Torque is the product of the distance from the point of rotation to the force applied x force x is the sign of the angle between the line and the force line.