Question

Samantha built a lover to lift objects in the science experiment the load arm is 0.4 Samantha built a lover to lift objects in the science experiment the load arm is 0.4 meters if she wants the lever to have a mechanical advantage of 8 how long should the effort arm be

Answer 1

To find the length of the effort arm needed for the lever to achieve a specific mechanical advantage (MA), you can use the formula for mechanical advantage in levers:

\[
\text{Mechanical Advantage (MA)} = \frac{\text{Length of Effort Arm}}{\text{Length of Load Arm}}
\]

In this case, you've provided the following:

- Length of Load Arm = 0.4 meters
- Desired Mechanical Advantage (MA) = 8

We need to find the Length of the Effort Arm (E). We can rearrange the formula to solve for E:

\[
E = MA \times \text{Length of Load Arm}
\]

Substituting the values we have:

\[
E = 8 \times 0.4
\]

Calculating this gives:

\[
E = 3.2 \text{ meters}
\]

Therefore, the length of the effort arm should be **3.2 meters** to achieve a mechanical advantage of 8.