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The resultant force will be twice the applied force.

In a lever, the total distance from the applied force to the fulcrum is the effort arm. And, the distance between load and the fulcrum is the load arm.

When the effort arm is two times the load arm, it means the resultant force will be twice the applied force.

Because,  Force = displacement × speed
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The work done by the load arm and the effort arm is the same. If the applied force is f and the length of the effort arm is 2x, the work done by the effort arm is f × 2x. Similarly, the work done by the load arm is F · x. So, F = 2f. Since the effort arm is twice the length of the load arm, the resultant force will be twice the applied force.

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