a lever was used to lift a heavy rock the input force was 150 n and the output force was 500 n what was the mechanical advantage of the pulley

Option A. 3.3

Explanation:

The following data were obtained from the question:

Input force = 150 N

Output force = 500 N

Mechanical advantage (MA) =.?

Mechanical advantage can be defined as force output divided by force input i.e

Mechanical advantage (MA) = force output / force input

With the above formula, we can obtain the mechanical advantage of the pulley as shown below:

Input force = 150 N

Output force = 500 N

Mechanical advantage (MA) =.?

MA = force output / force input

MA= 500/150

MA = 3.3

Thus, the mechanical advantage of the system is 3.3

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