What is the mechanical advantage (MA) of an inclined plane that is 8 feet long and 4 feet high?

What is the mechanical advantage (MA) of an inclined plane that is 8 feet long and 4 feet high?

• A. 2 to 1
• B. 4 to 1
• C. 8 to 1
• D. 16 to 1

Answer: (A)

To determine the mechanical advantage (MA) of an inclined plane, you can use the formula: MA = Length of the inclined plane / Height of the inclined plane. In this case, the length of the inclined plane is 8 feet, and the height is 4 feet. By substituting the values into the formula, you get: MA = 8 feet / 4 feet = 2. This indicates that for every 1 unit of height gained, you can move 2 units along the inclined plane, providing a mechanical advantage that helps reduce the effort required to lift an object. Consequently, the correct choice reflects that mechanical advantage of 2 to 1, demonstrating how inclined planes allow for easier lifting by increasing the distance over which the force is applied, thus reducing the force needed to elevate an object to a height.

To determine the mechanical advantage (MA) of an inclined plane, you can use the formula:

MA = Length of the inclined plane / Height of the inclined plane.

In this case, the length of the inclined plane is 8 feet, and the height is 4 feet. By substituting the values into the formula, you get:

MA = 8 feet / 4 feet = 2.

This indicates that for every 1 unit of height gained, you can move 2 units along the inclined plane, providing a mechanical advantage that helps reduce the effort required to lift an object.

Consequently, the correct choice reflects that mechanical advantage of 2 to 1, demonstrating how inclined planes allow for easier lifting by increasing the distance over which the force is applied, thus reducing the force needed to elevate an object to a height.