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The easiest way to open a heavy door is by applying the force2 marksNear the hingesIn the middle of the door At the edge of the door far from the hinges At the top of the door

Question

The easiest way to open a heavy door is by applying the force2 marksNear the hingesIn the middle of the door At the edge of the door far from the hinges At the top of the door

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Solution

The easiest way to open a heavy door is by applying the force at the edge of the door far from the hinges.

Here's why:

  1. Understand the concept of torque: Torque is a measure of how much a force acting on an object causes that object to rotate. The door rotates around the hinges, so the hinges are the point of rotation.

  2. Apply the principle of leverage: The farther away the force is applied from the point of rotation (in this case, the hinges), the less force is needed to cause rotation. This is the principle of leverage.

  3. Apply force at the edge of the door far from the hinges: By applying force at the edge of the door far from the hinges, you're maximizing the distance between the point of rotation and the point where the force is applied. This means you'll need less force to open the door, making it easier to open.

So, the easiest way to open a heavy door is to apply force at the edge of the door far from the hinges.

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