Question

a pulley system has a mechanical advantage of 3, and an object weighing 9 newtons must be lifted 15 meters. how much force must be applied to lift the object? use the following equation to find the answer: ma = f₀ / fᵢ (1 point) 0.3 n 3 n 27 n 1.7 n

Explanation:

Step1: Rearrange the formula for \(F_i\)

Given \(MA=\frac{F_o}{F_i}\), we can rewrite it as \(F_i = \frac{F_o}{MA}\)

Step2: Substitute the given values

We know that \(F_o = 9\space N\) and \(MA = 3\). So \(F_i=\frac{9}{3}\)

Answer:

\(3\space N\) (the second option)