This question asks us to identify a specific type of simple lever based on the relative positions of the fulcrum, effort, and load.
Simple levers are classified into three orders based on the position of the fulcrum (F), the effort (E), and the load (L).
Understanding Simple Lever Orders
Let's look at the arrangement for each order:
- Lever of First Order: The fulcrum is located somewhere between the effort and the load. The arrangement is typically E - F - L or L - F - E. Examples include seesaws, crowbars, and scissors.
- Lever of Second Order: The load is located somewhere between the fulcrum and the effort. The fulcrum is at one end, and the effort is at the other end. The arrangement is typically F - L - E. Examples include wheelbarrows, nutcrackers, and bottle openers.
- Lever of Third Order: The effort is located somewhere between the fulcrum and the load. The fulcrum is at one end, and the load is at the other end. The arrangement is typically F - E - L. Examples include fishing rods, tweezers, and human forearm lifting a weight.
Analyzing the Simple Lever Description
The question describes a simple lever with two key conditions:
- The effort (E) and load (L) act on the same side of the fulcrum (F).
- The load (L) is acting at a greater distance from the fulcrum than the effort (E). This means the load arm is longer than the effort arm ($\text{Load Arm} > \text{Effort Arm}$).
Let's check which lever order fits these conditions:
- First Order: The fulcrum is between effort and load (E - F - L or L - F - E). This means the effort and load are on opposite sides of the fulcrum. This does not fit the first condition.
- Second Order: The arrangement is F - L - E. The effort and load are on the same side of the fulcrum (the side opposite to the fulcrum's end). The load (L) is between the fulcrum (F) and the effort (E). This means the distance from F to L (Load Arm) is always less than the distance from F to E (Effort Arm). So, $\text{Load Arm} < \text{Effort Arm}$. This fits the first condition (same side) but not the second condition (load at a greater distance).
- Third Order: The arrangement is F - E - L. The effort and load are on the same side of the fulcrum (the side opposite to the fulcrum's end). The effort (E) is between the fulcrum (F) and the load (L). This means the distance from F to E (Effort Arm) is always less than the distance from F to L (Load Arm). So, $\text{Effort Arm} < \text{Load Arm}$. This fits both conditions: effort and load are on the same side of the fulcrum, and the load is at a greater distance from the fulcrum than the effort.
Based on this analysis, the description provided in the question perfectly matches the characteristics of a simple lever of the third order.
Identifying the Correct Simple Lever Order
The simple lever where the effort and load are on the same side of the fulcrum, and the load acts at a greater distance from the fulcrum than the effort, is known as a Lever of Third Order.