Answer true or false:
The mechanical advantage of a machine is independent of friction.

Explanation

To determine whether the statement "The mechanical advantage of a machine is independent of friction" is true or false, let's break down the concepts involved step by step.

### Step 1: Define Mechanical Advantage
Mechanical advantage (MA) is defined as the ratio of the load (the weight or resistance being moved) to the effort (the force applied to move the load). Mathematically, it can be expressed as:
\[ \text{Mechanical Advantage (MA)} = \frac{\text{Load (L)}}{\text{Effort (E)}} \]

### Step 2: Consider the Effect of Friction
When using a machine, such as a pulley, friction can play a significant role in how much effort is required to lift a load.
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