To find the length of the load arm, we can use the formula for mechanical advantage (MA):
1. Mechanical advantage (MA) formula:
MA = Load Arm Length / Effort Arm Length
We are given that the lever has a mechanical advantage of 4 and an effort arm length of 2 meters. Let's call the length of the load arm L_load.
Using the formula for MA, we can set up the equation: 4 = L_load / 2
2. Solving for the load arm length:
To find the length of the load arm, we can multiply both sides of the equation by 2:
4 * 2 = L_load
8 = L_load
Therefore, the length of the load arm is 8 meters.
By following these steps, you should be able to find the length of the load arm using the given mechanical advantage and effort arm length of the lever.