Lever, You Find A Smaller Rock, Use As A Fulcrum, You Place It A Meter From Boulder. What Works? """I choose A""""

A)move the fulcrum rock closer to the boulder
b)move the fulcrum rock farther from the boulder
c) try using the board without a fulcrum
d) try shortening your board

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To determine what works in this scenario, it's important to understand the concept of a lever and its mechanics.

A lever consists of a fulcrum (the pivot point), an effort force, and a load force. In this case, the boulder is the load force, the smaller rock is the fulcrum, and you will apply an effort force to move the boulder.

To achieve better leverage and make it easier to move the boulder, you would move the fulcrum rock closer to the boulder. Therefore, the correct option would be:

A) Move the fulcrum rock closer to the boulder.

To determine which option will work, we need to understand the concept of a lever and how it works.

A lever is a simple machine consisting of a rigid bar (in this case, the board) that rotates around a fixed point called the fulcrum (in this case, the smaller rock). When a force is applied to one end of the lever (the effort or input force), it can be used to move or lift an object (the load or output force) at the other end of the lever.

Based on the given scenario, the meter represents the distance between the fulcrum (smaller rock) and the boulder. To make the lever work effectively, we need to achieve a balance between the effort and load.

Considering the options provided:

A) Moving the fulcrum rock closer to the boulder: This option will increase the effort distance and decrease the load distance, hence making the lever easier to operate. Therefore, this option will likely make the lever work.

B) Moving the fulcrum rock farther from the boulder: This option will have the opposite effect. It will increase the load distance and decrease the effort distance, making it harder to move or lift the boulder. Therefore, this option will not make the lever work effectively.

C) Trying to use the board without a fulcrum: A lever requires a fulcrum to function properly. Without a fulcrum, there won't be any rotational point to generate mechanical advantage, and the lever won't work. Therefore, this option will not make the lever work.

D) Trying to shorten your board: The length of the lever affects its mechanical advantage. Shortening the board will reduce the effort distance, making it easier to operate, but it may also reduce the lever's ability to lift or move heavy loads. Therefore, shortening the board may or may not make the lever work effectively, depending on the specific situation.

In conclusion, option A seems to be the most suitable choice to make the lever work effectively in this scenario.