Question

a lever is used to lift an object with a weight of 60 newtons. the effort force is 15 meters from the fulcrum, while the load force is 5 meters from the fulcrum. what is the mechanical advantage? (1 point) 4 12 75 3

Explanation:

Step1: Recall the formula for mechanical advantage of a lever

The mechanical advantage (MA) of a lever can be calculated using the formula \(MA=\frac{\text{effort arm length}}{\text{load arm length}}\)

Step2: Identify the values of effort arm length and load arm length

Given that the effort force is \(15\) meters from the fulcrum (effort arm length \(L_{e} = 15\) m) and the load force is \(5\) meters from the fulcrum (load arm length \(L_{l}=5\) m)

Step3: Calculate the mechanical advantage

Substitute the values into the formula: \(MA=\frac{15}{5}=3\)

Answer:

3