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Why it is difficult to shut the door from a point near to hinge?
Wiki User
∙ 11y ago
The rotational equivalent of force is called torque. It is the product of (force) x (distance to the axis of rotation) x (a function of the angle at which force is applied). You can assume the last factor is equal to 1, if the force is applied at a right angle.
If the distance to the axis of rotation - the hinge - is small, a certain force produces only a small torque.
Wiki User
∙ 11y ago
It is difficult to shut the door from a point near the hinge because the hinge acts as a pivot point, causing the door to swing in an arc. When you try to close the door from near the hinge, your force is applied at a smaller distance from the pivot point, resulting in a larger torque required to overcome the resistance and close the door.
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